HP P9000 HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems
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- HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 1
use HP StorageWorks P9000 Continuous Access Journal for Mainframe Software to replicate data between local and remote HP StorageWorks P9000 disk arrays and to achieve disaster tolerance with maximum application performance. Topics include setting up remote copy connections, configuring the storage - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 2
2010, 2011 Hewlett-Packard Development Company, L.P. Confidential computer software. Valid license from HP required for possession, use or copying. Consistent with FAR 12.211 and 12.212, Commercial Computer Software, Computer Software Documentation, and Technical Data for Commercial Items are - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 3
Access Journal Z works 8 Hardware and software components 9 P9500 storage systems...11 Main and remote control units 11 Pair volumes...11 Journal volumes...11 Journals...12 Data path...12 Extended consistency groups 12 Remote Web Console ...13 Business Continuity Manager 13 Overview of copy - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 4
supported for Fibre Channel type, number of switches 45 Supported data path configurations 46 5 Using extended 56 Configure storage systems for Continuous Access Journal Z, define Create the initial copy ...67 Split a pair ...71 Split a mirror...73 Create a point-in-time copy ...73 Restore - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 5
business tasks back to the primary site 108 Recovering from primary site disaster in 3DC multi target configuration 109 Recovering from primary site failures (when delta resync operation is performed 111 Recovering from failures in the primary site and the Continuous Access Synchronous - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 6
operation environment to support remote command devices 140 Establish immediate communications 140 Assign mirrors to remote command devices 141 Release mirrors...142 Perform the delta resync operation 143 C Continuous Access Journal Z configurations with Business Copy Z 144 Overview...144 - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 7
when combining Continuous Access Journal Z with Business Copy Z....147 D Continuous Access Journal dialog box 175 DKC Operation window ...176 Remote Systems Information 177 Logical Path Information...178 Port ...189 View the EXCTG List ...191 View Storage Systems in an EXCTG 192 View journals - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 8
using multiple primary and secondary storage systems Continuous Access Journal Z software With Continuous Access Journal Z, application data is copied to a secondary P9500 system at a remote location. Continuous Access Journal Z is designed to support a remote site hundreds and even thousands - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 9
and secondary storage system are connected using a channel extender product. Hardware and software components A typical configuration consists of a P9500 or externally attached system on both local and remote sites, a host or hosts connected to the systems, Continuous Access Journal Z software on - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 10
software consists of: • Remote Web Console graphical user interface (GUI) • Business Continuity Manager • Configuration File Loader NOTE: • Continuous Access Journal Z processing continues uninterrupted if the SVP reboots or even if the SVP fails. • Continuous Access Journal Z does not support - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 11
P9500 storage systems Continuous Access Journal Z is operated using two P9500 storage systems, one at the primary and one at secondary sites. The primary system consists of the main control unit (MCU) and the SVP . The secondary system consists of the remote control unit (RCU) and the SVP. • The - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 12
for Continuous Access Journal Z. HP recommends two or more independent connections to provide hardware redundancy. A maximum of eight paths can be used. For more information, see "Planning the data path" (page 40). Extended consistency groups To maintain data consistency when performing copy - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 13
the Remote Web Console Java applet program is required to perform operations. Users without Storage (Remote Copy) role write access can only view (Remote Copy) role information. • If the RAID Manager computer is not installed, contact HP Technical Support for information on Continuous Access Journal - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 14
. In this case, the command to create the pair is rejected. The script is executed normally when you use the script without setting the system option on the primary storage system, however, note that the processing speed of the Continuous Access Synchronous Z initial copy slows down if there is - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 15
of data transfer. Make sure that your channel extenders are capable of supporting RIO. Contact HP Technical Support for more information. If an update copy operation fails, the remote system suspends the affected pair or all Continuous Access Synchronous Z pairs in the journal. This is dependent - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 16
bitmaps, and the differential data is copied to the S-VOL. The number of bitmap areas affects the maximum possible number of pairs that can be created in the storage system. Pair status Every pair operation is normal) and changes P-VOL status to Suspended. 16 Continuous Access Journal Z overview - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 17
physical head address of the track. • The CCHH of each user record in a track must be unique. The following program products can be used: • Remote Web Console - Required - Storage Administrator or (Remote Copy) role is required. • RAID Manager • Business Continuity Manager System requirements 17 - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 18
of pairs allowed " (page 30). Continuous Access Journal Z operations between P9500 and previous models are supported. See "Planning for previous models " (page 36). Supported RAID groups Supported volumes Cache and Nonvolatile Storage (NVS) Host failover software RAID1, RAID5, RAID6 can co-exist - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 19
the accounting capacity. NOTE: Continuous Access Journal can co-exist with Continuous Access Journal Z in the same storage system. Business Continuity Manager specifications Business Continuity Manager commands for Continuous Access Journal Z pair operations are issued from the host system console - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 20
Table 2 SAID values for PATH LINK (CL1) Package Local 1EU (Basic) 1EL (Add2) 1FU (Add1) 1FL (Add3) Port SAID Package Local CL1-A X'0000' 1GU CL3-A X'0020' (Add4) CL5-A X'0040' CL7-A X'0060' CL1-B X'0001' CL3-B X'0021' CL5-B X'0041' CL7-B X'0061' CL1-C X'0002' 1GL CL3-C X'0022' (Add6) CL5 - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 21
-C X'00D2' CLG-C X'00F2' CLA-D X'0093' CLC-D X'00B3' CLE-D X'00D3' CLG-D X'00F3' Command device To use Business Continuity Manager, you can configure a command device for it separately from the command device for an open system. The command device for Business Continuity Manager Command device 21 - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 22
can be configured only from Business Continuity Manager. For details, see the manual of Business Continuity Manager. 22 Requirements and specifications - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 23
business requirements to determine recovery requirements. • Measure your host application's write-workload in MB per second and write-input/output per second (IOPS) to begin matching actual data loads with the future Continuous Access This involves: understanding supported configurations, the need - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 24
RPO, the host application's write-workload over an extended period. software. You will use IOPS to set up a proper data transfer speed, which you insure through RAID group configuration and by establishing the number of Fibre Channel ports your Continuous Access Journal Z system requires. Each RAID - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 25
performance monitoring software, collect the following: • Disk-write bytes-per-second (MB/s) for every physical volume that will be replicated. • Data should be collected over a 3 or 4 week period to cover a normal, full business continue between hosts and the primary storage Continuous Access - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 26
remote array must be large enough to handle the production workload, and therefore, must be the same size as master journals. If not planning a disaster recovery solution, remote journal volumes may be smaller than master journal volumes. Planning journals Continuous Access Journal Z manages pair - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 27
different RAID groups. Fibre Channel port configuration The Fibre Channel ports on your P9500 system have an IOPS threshold. Use the performance monitoring information for the number of IOPS your production system generates to calculate the number of Fibre Channel ports the Continuous Access Journal - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 28
LDEVs. When custom-size LDEVs are assigned to a Continuous Access Journal Z pair, the S-VOL must have the same capacity as the P-VOL. For details about Virtual LVI feature, see HP StorageWorks P9000 Provisioning for Mainframe Systems User Guide. • Identify the volumes that will become the P-VOLs - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 29
MB, and the maximum capacity is the same as the user capacity of one RAID group. The default capacity of an OPEN-V volume is the same as the capacity of a RAID group, and depends on the hard disk drive type and the RAID configuration. Minimum volume capacity 1 cylinder 50 cylinders for a non - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 30
Continuous Access Journal are also used for Continuous Access Journal Z, Continuous Access Synchronous, Continuous Access Synchronous Z, and External Storage Access Manager. If you use Continuous Access Journal with Continuous Access Journal Z, Continuous Access Synchronous, and Continuous Access - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 31
of slots that a bitmap area can manage To calculate the maximum number of storage system is the maximum number of pairs that can be created. Priority set for initial copy operations and scheduling order For performing more initial copy operations than the setting value of the Maximum Initial Copy - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 32
which initial copy is already instructed to be performed Data volume pair for which initial copy is already instructed to be performed Data volume pair for which initial copy is already instructed to be performed Data volume pair for which initial copy is newly instructed to be performed Data volume - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 33
, or other interconnect technologies, depending on your installation requirements and standards. Neither Continuous Access Journal Z nor Remote Web Console provides ERC between the primary and secondary sites. When Continuous Access Journal Z is used as a data migration tool, ERC is recommended, but - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 34
must be created in the supervisor DKC. For details on secondary systems connections and remote command devices, see the next section and HP StorageWorks P9000 External Storage for Open and Mainframe Systems User Guide. • Journal data is updated in the secondary systems based on the same time stamps - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 35
to subordinate DKCs. The emulation type of command devices and remote command devices must be OPEN-V. For more information about remote command devices, see HP StorageWorks P9000 External Storage for Open and Mainframe Systems User Guide. Figure 5 Connections between Supervisor, Subordinate DKCs By - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 36
See "Using extended consistency groups" (page 48) for planning and set up information. Planning for previous models Continuous Access Journal Z can be used to perform remote copy operations between P9500 and XP24000/XP20000 Disk Array. Data can be copied from P9500 to XP24000/XP20000 Disk Array, or - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 37
Web Console operations. See HP StorageWorks P9000 Remote Web Console User Guide for information. • Make sure that primary and secondary systems are properly configured for Continuous Access Journal Z operations; for example, cache memory considerations. See the item for Cache and Nonvolatile Storage - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 38
command from Business Continuity Manager. Mode 474 ON: The performance of the initial copy processing of the Continuous Access Journal Z pair can be improved by issuing the command from Business Continuity Manager. Mode 474 OFF: Normal operations are performed. 506 To create a Continuous Access - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 39
in host I/O response during the Continuous Access Journal Z resync operation is reduced. Mode 760 OFF: Normal operations are performed. 762 Use this mode in the Continuous Access Journal Z extended consistency group configuration. In the case where Business Continuity Manager issues the - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 40
instructions for calculating bandwidth and designing the data path network. Data path design workflow To set up a data path, you need to establish the following: • The amount of bandwidth necessary to move the data generated by your host application copy the production disks, then an extended peak - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 41
system until the resync completes. Calculating bandwidth To determine bandwidth for Continuous Access Journal Z, write-workload must be measured. Production system workload data is collected using performance monitoring software. Please see "Measuring write-workload" (page 24). When you have - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 42
a safety factor. • Projected growth rate accounts for the increase expected in write-workload (Most spreadsheet tools have an average function.) This instructs the tool to calculate the average value in cells Base your calculations on your RPO.) b. Copy the value that displays in E4. c. Highlight - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 43
bandwidth must be able to handle. 3. With a base bandwidth value established, make adjustments for growth and a safety factor. • Projected growth rate accounts for the increase expected in write-workload over a 1, 2, or 3 year period. • A safety factor adds extra bandwidth for unusually high spikes - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 44
Continuous Access Journal Z commands and data. RCU target ports must be configured on both primary and remote storage systems for Continuous Access Journal Z operations. • External port: Required for External Storage copy operations. This port is not used for Continuous Access Journal Z copy - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 45
redundancy. • Host paths cannot be connected to an initiator port. However, they can be attached to RCU target ports. NOTE: Two or more initiator ports must be configured before you can add the secondary storage systems and create the Continuous Access Journal Z volume pairs. Distances supported for - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 46
is a direct link between the local and remote arrays. NL-port (Node Loop) are supported for the data path and host-to-system path. • Switch connection, as remote switch and Fibre Channel to the remote system. F-port (Point-to-Point) and FL-port (Loop) switch connections are supported. • Extender - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 47
of data to be transmitted may concentrate on particular switches, depending on the configuration and the settings of switch routing. • Make sure that your channel extenders are capable of supporting remote I/O. For further details, contact HP technical support. Supported data path configurations 47 - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 48
consistency groups When performing Continuous Access Journal Z operations between multiple primary and secondary storage systems, the journals must be in extended consistency groups (EXCTGs). This chapter provides information and instructions for setting up and maintaining journals in EXCTGs - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 49
Journal Z restores all data up to 14:02. ◦ For Journal 3, Continuous Access Journal Z restores all data up to 14:03. ◦ For Journal 4, Continuous Access Journal Z restores all data up to 14:04. • Consistency time. Remote Web Console displays the consistency times of EXCTGs, journals, and pairs in the - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 50
in an EXCTG When performing Continuous Access Journal Z copy operations between multiple primary and secondary storage systems, you must register the journals in an EXCTG. Prerequisite information • Set up primary and secondary EXCTGs using Business Continuity Manager prior to registering journals - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 51
the LDEV number of the remote command device. If the LDKC Business Continuity Manager, you can split, restore, and release all pairs in an EXCTG collectively. Pair-split operation When you perform the Business Continuity Manager YKSUSPND command. storage systems 2 and 3 and the secondary storage - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 52
or from all EXCTGs. • All journals in the storage system or LDKC. You can also forcibly remove journal Remote Web Console, click Actions > Remote Copy >Continuous Access Journal Z > EXCTG Operation. The EXCTG Operation window displays. 2. Click to change the mode from View extended consistency groups - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 53
. Using EXCTGs with P9500 Continuous Access Journal Z can perform remote copy operations from more than one primary storage system to more than one secondary system using EXCTGs. Both the primary and secondary systems can be a mix of P9500 and XP24000/XP20000 Disk Arrays. • There is no limitation - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 54
Figure 16 Journals that can be registered in an EXCTG when previous models (XP24000/XP20000 Disk Array) are the subordinate DKC 54 Using extended consistency groups - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 55
Figure 17 Journals that can and cannot be registered in an EXCTG when the previous model (XP24000/XP20000 Disk Array) is the supervisor DKC Using EXCTGs with P9500 55 - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 56
need to be performed from the local or remote storage system. 1. Log in to Remote Web Console. Make sure Remote Web Console is in Modify mode. Click to change the mode from View to Modify. 2. Define the Fibre Channel port attributes that will be used for Continuous Access Journal Z. See "Define - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 57
system. To define port attributes 1. In Remote Web Console, select Actions > Remote Copy > Continuous Access Journal Z > DKC Operation. 2. Click to change the mode from View to Modify. 3. In the Display box, select Port. The ports associated with the local storage system are listed. 4. Right-click - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 58
Remote Web Console, select Actions > Remote Copy > Continuous Access Journal Z > DKC Operation. The DKC Operation window displays. 2. Click to change the mode from View to Modify. 3. In the Display box, select DKC. The tree and full list on the right-side display information about all remote storage - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 59
ID for an XP24000/XP20000 Disk Array is 5. The controller ID for an XP12000/XP10000 Disk Array is 4. 8. The Path Gr. ID check box is intended for a future release. Continue to the next step. 9. In the M-R Path box, define the logical path between local and remote systems: 1. In the Port column - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 60
supported. Prerequisite information Please review the prerequisites for configuring logical paths in "Configure storage systems for Continuous Access Journal Z, define logical paths " (page 58). To configure additional logical paths 1. In Remote Web Console, select Actions > Remote Copy > Continuous - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 61
2. In the Pair-Port column, select the remote system RCU target port. This establishes a logical column of the Preview list. To view detailed information about the error, right click the error code copy, resync You can specify the number of volumes to be copied concurrently during an initial copy - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 62
copy concurrently 1. In Remote Web Console, select Actions > Remote Copy > Continuous Access Journal Z > Optional Operation. 2. Click to change the mode from View default, 64 volumes, you limit the impact of initial copy operations on storage system performance. • When you specify more than 64, the - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 63
if necessary. See "Using extended consistency groups" (page 48). • Journal volumes must be registered on both local and remote systems. • A journal can contain up to 64 journal volumes. • Journal volumes must be set up and sized according to your Continuous Access Journal system's requirements. For - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 64
To register journal volumes 1. In Remote Web Console, select Actions > Remote Copy > Continuous Access Journal Z > Journal Operation. The Journal Operation window is displayed. 2. Click to change the mode from View to Modify. 3. To register journal volumes in an existing journal, select the journal - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 65
the external parity group number in the box, and click Show. A list of volumes in the specified external parity group Continuous Access Journal Z pair is established, the primary storage system reports state change interrupt (SCI) to all hosts. The host then issues a series of sense group commands - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 66
storage system does not acquire time stamp information from the host I/O time stamping function. • None This timer option can be selected only when the copy direction of a Continuous Access the Preview list. To view detailed information about the error, right click the error code and - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 67
provides procedures and prerequisite information for performing Continuous Access Journal Z copy operations. Pair operations workflow Basic Continuous Access Journal Z operations consists of the following. • Always check pair status. Each Continuous Access Journal Z operation requires the pair to - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 68
about Performance Monitor, see HP StorageWorks P9000 Performance for Open and Mainframe Systems User Guide. To create an initial copy or copies 1. In Remote Web Console, select Actions > Remote Copy > Continuous Access Journal Z> Pair Operation. 2. Click to change the mode from View to Modify - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 69
. If you selected multiple volumes as P-VOLs, the S-VOL you specify by the list is paired with the P-VOL displayed in P-VOL. Create the initial copy 69 - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 70
, the Paircreate dialog box opens and the Select Other S-VOL storage system. The secondary system must be the same for all pairs being created during one operation. 8. In the Initial Copy list, select one of the following: • Entire, to create the Continuous Access Journal Z pair relationship and copy - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 71
or a remote copy path error. Review the error code appears in the rightmost column of the Preview list. To view detailed information about the error, right click the error code and Best practice is to perform pair split when I/O load is low. This reduces impact on performance. Operations on multiple - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 72
option is described in the pair-split procedure. To split one or more pairs 1. In Remote Web Console, select Actions > Remote Copy > Continuous Access Journal Z > Pair Operation. 2. Click to change the mode from View to Modify. 3. In the tree, select a CU group number or CU number. Paired volumes - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 73
status. To split a mirror 1. In Remote Web Console, select Actions > Remote Copy > Continuous Access Journal Z > Journal Operation. 2. Click to change the mode from View to Modify. 3. In the tree, is complete. If desired, you can restart your business application at the primary site to resume - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 74
Z pair might become Suspend by splitting the pair or by failure while copying all data from P-VOL to S-VOL when the delta resync Continuous Access Journal Z pair performs the operation as a Continuous Access Journal Z pair before performing the delta resync operation. In this case, all data might be - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 75
if remote command devices are used, the update operation needs not be performed for five minutes or more. See "Prerequisite information for performing delta resync operation" (page 138) for details. To restore a pair 1. In Remote Web Console, select Actions > Remote Copy > Continuous Access Journal - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 76
the rightmost column of the Preview list. To view detailed information about the error, right click the error code and select Error Detail. NOTE: If the status of the Continuous Access Journal Z pair for delta resync operation does not change after you perform the delta resync operation, some of the - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 77
In Remote Web Console, select Actions > Remote Copy > Continuous Access Journal Z > Journal Operation. 2. Click to change the mode from View to is resynchronized and then the data copy restarts. • If Hold or Holding is selected, the delta resync operation is performed on all pairs in the mirror. - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 78
same host(s), HP strongly recommend that the secondary data volumes are defined to remain offline to avoid this problem. To delete a pair or pairs 1. In Remote Web Console, select Actions > Remote Copy > Continuous Access Journal Z > Pair Operation. 2. Click to change the mode from View to Modify - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 79
a mirror, data copying between master and restore journals end. Prerequisite information • This operation can be performed from either the primary 1. In Remote Web Console, select Actions > Remote Copy > Continuous Access Journal Z> Journal Operation. 2. Click to change the mode from View to Modify. - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 80
at the user's discretion. Monitoring should be repeated frequently. Email notifications of problems can be set up using the GUI. To monitor pair status 1. In Remote Web Console, select the storage system where the pair or pairs are located. Click Actions > Remote Copy > Continuous Access Journal - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 81
suspended. When the suspension is requested (by user, primary storage system, or secondary storage system), the status of all affected pairs status is displayed when the environment of the delta resync operation to support remote command devices is used. • If you execute the delta resync operation on - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 82
to support the remote command devices, Continuous Access Synchronous due to failures or disasters, the transition from Holding to Hold is not performed correctly. Additional information on pair status • When a pair is split or suspended, the primary system notifies the host(s) with a service - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 83
instructions on viewing the usage rate of a journal volume. The Continuous Access Journal Z SEQCHK status is indicated when a Continuous Access the following. ◦ An application may issue update I/Os copy operations user has released the volume pair from the secondary storage host(s). Table 12 (page - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 84
By RCU Delete Pair to RCU P-VOL P-VOL Secondary Data Volume P-VOL Failure MCU IMPL P-VOL, S-VOL Initial Copy failed P-VOL, S-VOL JNL Cache Overflow P-VOL, S-VOL Description The user suspended the pair from the primary or secondary system using the S-VOL option. The secondary system received - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 85
storage system). This status is indicated when: This volume pair was suspended by a user Continuous Access Journal Z pairs. Table 14 Suspension condition Suspension condition Detected by The secondary system could not copy the type of failure. See "Troubleshooting suspended pairs " (page 119) for - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 86
. • The P-VOL records updated by host-requested write I/Os after the pair was its bitmap. The primary system then performs the resync operation according to the External VOL: Specify whether internal volumes or external volumes appear in the list. If you select All, all the internal and external - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 87
client file access settings, see HP StorageWorks P9000 Remote Web Console User Guide. The following information for pair status is displayed in the exported file: Item Vol Status Sub JNL Mr S/N(LDKC) CNTL Vol JNL Type ErrLv Sync CLPR Copy Time Descriptions Volume in the local storage system. The - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 88
Web Console, click Actions > Remote Copy > Continuous Access Journal Z > Usage Monitor. The Usage Monitor window displays as shown in Figure 18 (page 88). The fields on the Usage Monitoring window are described in Table 15 (page 88). You start and stop monitoring in Performance Monitor. See HP - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 89
running (Monitoring Switch = Enable). The usage monitor graph can be viewed only when monitoring is on. 2. Right-click the graph and the LDEV is an external volume (see HP StorageWorks P9000 External Storage for Open and Mainframe Systems User Guide for more information about external drives). - A - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 90
. The unit is percent. The average transfer rate for initial copy operations. The unit is kilobytes per second. The number of asynchronous remote I/Os per second at the primary storage system. The number of journals at the primary storage system. The average transfer rate for journals in the primary - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 91
to the Journal Operation window and provides definitions for statuses. To view journal status 1. In Remote Web Console, select Actions > Remote Copy > Continuous Access Journal Z > Journal Operation. 2. In the tree, open the Registered child-tree, then select a journal. The group's information - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 92
. Monitor logical path status To view logical path status 1. In Remote Web Console, select Actions > Remote Copy > Continuous Access Journal Z > DKC Operation. primary and the secondary storage systems. - A logic error is detected between the primary and the secondary storage systems. • Resource - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 93
path to the remote system was performed. When clicked, Continuous Access Journal Z has not been started: 1. In Remote Web Console, select Actions > Remote Copy > Continuous Access Journal Z > History. The History window opens. The History window may not show the latest operation history. To view - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 94
pairs in Duplex, Suspend, Hold, Holding, or Hlde status. To change the option 1. In Remote Web Console, select Actions > Remote Copy > Continuous Access Journal Z > Pair Operation. 2. Click to change the mode from View to Modify. 3. In the tree, select the port that you have configured for the pair - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 95
Change Continuous Access Journal Z options used by journals Most Continuous Access Journal Z pair operations are performed Remote Web Console, select Actions > Remote Copy > Continuous Access Journal Z > Journal Operation. The Journal Operation window displays. 2. Click to change the mode from View - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 96
specify whether to store journal data (initial copy or resynchronization data) in the cache memory on the remote side (restore journal). - Use: Journal setting does not effect master journals unless the Business Continuity Manager YKRESYNC REVERSE command is used to change a master journal into - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 97
to the selected mirrors. To change options for a mirror 1. In Remote Web Console, select Actions > Remote Copy > Continuous Access Journal Z > Journal Operation. The Journal Operation window displays. 2. Click to change the mode from View to Modify. 3. Operate either of the following: In the tree - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 98
path becomes blocked, ask HP Technical Support to set the system Business Continuity Manager YKRESYNC REVERSE command is used to change a master journal into a restore journal. 9. For Delta resync Failure, specify the processing that takes place when the delta resync operation cannot be performed - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 99
. For instructions on formatting volumes, see the HP StorageWorks P9000 Provisioning for Mainframe Systems User Guide. • The Remote Web Console, select Actions > Remote Copy > Continuous Access Journal Z > Journal Operation. The Journal Operation window displays. 2. Click to change the mode from View - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 100
storage system. Prerequisite information • When all mirrors in the journal are in the Initial status, you can delete the journal. • Master and restore journals cannot be deleted. To delete a journal 1. In Remote Web Console, select Actions > Remote Copy > Continuous Access To view detailed - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 101
system and the RCU target port of the primary storage system. To delete a logical path 1. In Remote Web Console, select Actions > Remote Copy > Continuous Access Journal Z > DKC Operation. 2. Click to change the mode from View to Modify. 3. In the Display box, select DKC. The tree and full list - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 102
must be performed on both the primary and secondary P9500 systems. To delete the Continuous Access Journal Z relationship 1. In Remote Web Console, select Actions > Remote Copy > Continuous Access Journal Z > DKC Operation. The DKC Operation window displays. 2. Click to change the mode from View to - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 103
on the system. CAUTION: Wait five (5) minutes after powering on a system before performing Continuous Access Journal Z operations; otherwise the pairs could be suspended with a failure. 4. When the system is ready to resume copy operations, on the primary site, restore the pairs that have been split - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 104
copy operations, power on the primary system. CAUTION: Wait five (5) minutes after powering on a system before performing Continuous Access is Suspend and a status of a pair of secondary storage system is Duplex, use Remote Web Console to suspend the pair of the secondary system. After confirming - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 105
do not need to perform an IPL of the secondary host system, insure that the S-VOLs are varied online before continuing. 2. Check whether the restore journal includes an S-VOL with a pair status of Pending duplex or Suspend (equivalent to SUSPOP in Business Continuity Manager). Preparing for disaster - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 106
manual of Business Continuity Manager for more information. Copy data back to the primary site When the disaster recovery procedure is completed and host applications are running at the secondary site, the next activity is to restore the primary site and re-establish the Continuous Access Journal - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 107
Continuous Access Journal Z pairs is Duplex. 3. Stop the applications at the secondary site. 4. Execute the Business Continuity Manager command YKSUSPND with the FLUSH S-VOL and PERMIT parameters to the copy storage system, all journals in the extended consistency group are suspended and remote copy - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 108
Journal Z pair status to Duplex and could not reverse the copy direction, use Business Continuity Manager to execute the YKRESYNC REVERSE command (a command for re establishing a pair) onto the journals that make a Continuous Access Journal Z pair between the intermediate site and the secondary site - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 109
of a pair to the S-VOL. 2. Use Business Continuity Manager to execute the YKSUSPND REVERSE command on the Continuous Access Journal Z pair. YKSUSPND is a command for splitting a pair and stopping the copy operation temporarily. 3. Use the Continuous Access Journal Z remote volume to resume your - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 110
been performed to reverse the primary volume and the remote volume of the Continuous Access Synchronous Z pair (i.e., if the pair is suspended), use Business Continuity Manager to execute the YKRESYNC command (a command for re establishing a pair), so that the copy direction of the Continuous Access - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 111
the procedure below. Business Continuity Manager is used in this procedure: 1. Use Business Continuity Manager to execute the YKDELETE command (a command for releasing a pair) on the current Continuous Access Journal Z pair, which extends between the Continuous Access Synchronous Z secondary site - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 112
/secondary relationship of the Cnt Ac-S Z pair is reversed (i.e., the copy direction is reversed), use Business Continuity Manager's YKRESYNC DELTAJNL command to perform delta resync operation on the volume in the Continuous Access Synchronous Z secondary site. The status of the data volumes of - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 113
volume in the primary site to resume your business tasks. 6. Use Business Continuity Manager to execute the YKRESYNC FORWARD command on the Continuous Access Synchronous Z pair. The copy direction of the pair is returned to its original direction. 7. Perform delta resync operation on the volume in - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 114
is used in this procedure: 1. Use Business Continuity Manager to execute the YKSUSPND REVERSE command (a command for splitting a pair and stopping the copy operation temporarily) on the journal corresponding to the Continuous Access Journal Z pair, which extends between the primary site and the - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 115
using the remote Continuous Access Journal Z secondary volume, and then restore data and business operations back to the primary site. Proceed as follows using Business Continuity Manager: 1. Release the Business Copy Z pair using the YKDELETE command. 2. Suspend the Continuous Access Journal Z pair - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 116
Filter dialog box. An R-SIM warning appears on your Remote Web Locate the SIM (see HP StorageWorks P9000 Remote Web Console Console computer. User Guide for instructions). For information about Cnt Ac-J Z SIMs, see "Service information messages (SIMs) " (page 122). A Cnt Ac-J error message - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 117
the Remote Web Console computer and the SVP, see HP StorageWorks P9000 Remote Web Console User Guide for instructions. Although HP StorageWorks P9000 Performance for Open and Mainframe Systems User Guide. Troubleshooting logical paths Troubleshooting information for logical paths between storage - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 118
Table 22 Logical path troubleshooting (continued) Path status Serial Number Mismatch Description Corrective action The serial number (S/N) of Make sure that you entered the the error path. Check the specified port number or cable connections, and then retry the operation. 118 Troubleshooting - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 119
command. Troubleshooting suspended pairs Troubleshooting information for user- storage system suspended a pair because the primary storage system detected an error condition at the secondary storage system. Clear the error condition at the secondary storage system or S-VOL. If you need to access - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 120
system. The primary system performs an initial copy operation in response to the pairresync request; the entire P-VOL is copied to the S-VOL. P-VOL, S-VOL The primary storage system suspended Release the pair from the primary storage this pair during the initial copy operation. system. Clear all - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 121
Remote Web Console The user is responsible for the operation and normal maintenance of Remote Web Console computers. For troubleshooting information on Remote Web Console, see HP StorageWorks P9000 Remote Web Console User Guide. Here are some guidelines for troubleshooting the Remote Web Console - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 122
Tool (see HP StorageWorks P9000 Remote Web Console User Guide). Contact HP Technical Support and give the information on the floppy disk(s) to the HP service personnel. Error codes When an error occurs in a Continuous Access Journal Z pair operation when using Remote Web Console, an error message - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 123
host, except 21 80. Table 25 SIM reference codes, types, and descriptions Reference code Byte 22 Byte 23 21 80 21 81 21 82 DC 0X Severity Description System generating the SVP log SIM file Moderate Logical path is blocked due to a failure. Primary system/Secondary system Service - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 124
You can enable or disable the reporting of SIMs to the host. To enable or disable SIMs reporting to the host 1. In Remote Web Console click Actions > Remote Copy > Continuous Access Journal Z > Optional Operation. 2. Click to change the mode from View to Modify. 3. Select LDKC in the tree. The list - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 125
also cleared at the same time. The SIMs of the entire storage system are cleared. To clear all SIMs 1. In Remote Web Console, click Actions > Remote Copy > Continuous Access Journal Z > Optional Operation. 2. Click to change the mode from View to Modify. 3. Click Clear SIM in the upper right corner - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 126
P9000 Remote Web Console Messages • HP StorageWorks P9000 Remote Web Console User Guide You can find these documents on the Manuals page of the HP Business Support Center website: http://www.hp.com/support/manuals In the Storage section, click Disk Storage Systems for hardware or Storage Software - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 127
, see the following HP websites: • http://www.hp.com • http://www.hp.com/go/storage • http://www.hp.com/service_locator • http://www.hp.com/support/manuals • http://www.hp.com/support/downloads • http://www.hp.com/storage/whitepapers Conventions for storage capacity values P9000 disk arrays use the - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 128
Table 26 Document conventions (continued) Convention Monospace text Element • File and directory names • System output • Code • Commands, their arguments, and argument values Monospace, italic text • Code variables • Command variables Monospace, bold text Emphasized monospace text WARNING! - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 129
. NOTE: Continuous Access Synchronous Z and Business Copy Z volumes are used extensively with Continuous Access Journal Z. See "Continuous Access Journal Z configurations with Continuous Access Synchronous Z" (page 133) and "Continuous Access Journal Z configurations with Business Copy Z" (page - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 130
is "No" if more than one primary storage systems and more than one secondary storage system are used for remote copy (see "Planning for Continuous Access Journal Z with multiple P9500 systems" (page 33)). *4: For more information on Auto LUN , contact HP Technical Support. *5: First, create a Cnt Ac - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 131
Journal operations are completed, exit Continuous Access Journal and Remote Web Console. 5. Re-enable Performance Monitor data collection. For further information on Performance Monitor, see HP StorageWorks P9000 Performance for Open and Mainframe Systems User Guide. Data Retention You can create - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 132
changed when pair status of Continuous Access Journal P-VOL is PAIR or COPY Access attribute before Changing access attribute change Read/Write Read Only Protect COPY Yes PAIR Yes Yes* Yes* Yes* Yes* *This attribute cannot be changed from Remote Web Console. S-VOL Disable No No 132 - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 133
a long distance copy after disaster in the event that the Continuous Access Synchronous Z/Continuous Access Journal Z M-VOL becomes unusable. In this case, the host continues I/O operations at the intermediate Continuous Access Synchronous Z R-VOL site. With a second Continuous Access Journal Z pair - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 134
local, Continuous Access Synchronous Z intermediate, and Continuous Access Journal Z remote sites. • Business Continuity Manager is recommended at all sites. • Remote Web Console is required at all sites. ◦ Host application ◦ Continuous Access Synchronous Z ◦ Continuous Access Synchronous Z primary - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 135
Continuous Access Synchronous Z and Continuous Access Journal Z on the required systems. 2. Create the Continuous Access Synchronous Z pair on the primary system. See HP StorageWorks P9000 Continuous Access Synchronous for Mainframe Systems User Guide for instructions. 3. When Continuous Access - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 136
Continuous Access Synchronous Z and Continuous Access Journal Z on the required systems. 2. Create a Continuous Access Synchronous Z pair on the primary system. See HP StorageWorks P9000 Continuous Access Synchronous for Mainframe Systems User Guide for instructions. 136 Continuous Access Journal - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 137
data - from their respective Continuous Access Synchronous Z and Continuous Access Journal Z systems. • If a failure on the primary site occurs, the Continuous Access Synchronous Z R-VOL is made the primary production volume using the Business Continuity Manager commands . Differential data stored - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 138
status should be Duplex or Swapping. ◦ If you use Continuous Access Synchronous Z R-VOL, the pair status should be Swapping. Check the pair status after executing the Business Continuity Manager YKSUSPEND REVERSE command and YKRESYNC REVERSE command. • Secondary data volume uses two mirror IDs; the - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 139
Continuous Access Journal Z pair for delta resync operation is created. If the delta resync operation to support remote command devices is performed, to copy only differential data, execute the Business Continuity Manager YKRESYNC DELTAJNL ERRCHK command. By specifying an option, you can copy all - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 140
/remote command devices. Configure paths between external ports and target ports. For detail about the external ports, see HP StorageWorks P9000 External Storage for Open and Mainframe Systems User Guide. For instruction on setting paths, see HP StorageWorks P9000 Provisioning for Open Systems User - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 141
Halt, Stopped, Hold, Holding, Hold(Failure) or Holding(failure) • Perform this operation per journal. To assign mirror IDs to remote command devices 1. In Remote Web Console, select Actions > Remote Copy > Continuous Access Journal Z > Journal Operation. The Journal Operation window displays. 2. In - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 142
HP StorageWorks P9000 Remote Web Console User Guide. 2. Ensure that the Journal Operation window is open. 3. In the tree, select a master journal or a restore journal from below Registered. 4. From the mirrors, select and right-click the mirror that you want to release the assigned remote command - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 143
The delta resync operation is performed during disaster recovery. This operation copies differential data from the Continuous Access Synchronous Z R-VOL to the Continuous Access Journal Z S-VOL. The delta resync operation is part of the Resume Pair operation. Follow instructions in "Restore a pair - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 144
for using Business Copy Z with Continuous Access Journal Z. For details about Business Copy Z, see HP StorageWorks P9000 Business Copy for Mainframe Systems User Guide. Overview Continuous Access Journal Z's main function is to maintain a copy of the production volume in a remote location. Backing - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 145
the multiple disk systems at the same time. • A Continuous Access Journal Z secondary volume shared with the Business Copy Z primary volume is illustrated below. With this configuration, multiple backup copies of the Continuous Access Journal Z primary volume can be made on the remote system. You - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 146
as the production volume. A remote Continuous Access Journal Z backup copy is made of the Business Copy Z secondary volume. The Business Copy Z pair must be in Suspend status (Split) to perform the Continuous Access Journal Z operation. You can make a Business Copy Z backup copy at a specified time - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 147
when Continuous Access Journal Z and Business Copy Z are used in conjunction: • The At-Time Split function can be executed by Business Continuity Manager, but cannot be executed by Remote Web Console. • You can execute split operations on Business Copy Z pairs that belong to Business Copy - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 148
the split time by using Business Continuity Manager. 2. Among the Continuous Access Journal Z restore journals, the journal data created before the split time is restored to Continuous Access Journal Z S-VOLs (Business Copy Z S-VOLs). 3. When Continuous Access Journal Z detects the journal data - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 149
a timeout value, see the manual of Business Continuity Manager. Figure 29 Configuration of multiple journal groups registered in One Business Copy Z consistency group If you use the At-Time Split function when combining Continuous Access Journal Z with Business Copy Z, note the following: • The - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 150
of Continuous Access Journal Z when split time is already specified. You can execute Reverse Resync after you delete all the specified split time of Business Copy Z pairs in conjunction with the restore journal. For details on Reverse Resync, see the manual of Business Continuity Manager. • When - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 151
Journal Z GUI reference This appendix describes the Continuous Access Journal Z windows, dialog boxes, fields, and behaviors in Remote Web Console. Journal Operation window This window lets you view details about journals and volumes. Information on the Journal Operation window will be updated - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 152
journals in the local storage system. The tree shows journals used with Continuous Access Journal, though not Continuous Access Journal Z. • Journals LDKC shows journals in which no journal volumes are registered. For instructions on how to register journal volumes in journals, see "Register journal - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 153
mirror is neither Master nor Restore. Journal (continued) • Controller ID: The controller ID (name indicating the model) of the remote storage system. The controller ID for a P9500 storage system is 6. The controller ID for an XP24000/XP20000 Disk Array storage system is 5. The controller ID for - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 154
.Dev: Assign a remote command device to a mirror • Release R-Cmd.Dev: Release an assigned remote command device • Blank: storage systems. Cancels settings in the Preview list. Journal Detail window This window lets you view detailed information about the individual journals. 154 Continuous Access - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 155
the journal whose mirror ID is not Hold, Holding, or Hold(Failure). Restricts inflow of update I/O to the journal volume (by delaying response to hosts). - Yes indicates inflow will be restricted. Default. - No indicates inflow will not be restricted. Data Overflow Watch The time (in seconds) for - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 156
, if the Business Continuity Manager YKRESYNC REVERSE command is used to change a master journal into a restore journal, this setting affect the journal. If you set Use, this setting only takes effect on the journal volumes of RAID-5 or RAID-6 that are in the journal. For external volumes, non - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 157
However, if the Business Continuity Manager YKRESYNC REVERSE command is used to change a master journal into a restore journal, this setting takes effect on the journal. - EXCTG, DKC/CTRLID: Displays the following information sequentially if the journal belongs to an extended consistency group: The - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 158
journal. See "Change Continuous Access Journal Z options used by journals" (page 95) for complete information. Item Description Inflow Control Restrict inflow of update data to the journal volume. Yes restricts inflow, No does not restrict. (slows delay response to hosts - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 159
not restrict. (slows delay response to hosts Data Overflow Watch Sets number of seconds ) immediately after a path gets blocked, ask HP Technical Support to set the system option mode 448 to ON the delta resync operation cannot be performed-entire P-VOL is copied or no processing (S-VOL not - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 160
• PG: Shows volumes belonging to a parity group. • PG(Ext.): Shows external volumes belonging to a parity group. • CU: Shows volumes belonging to a CU mainframe host is used. Local: The system clock is not used. None: The system clock of the mainframe host is used. 160 Continuous Access Journal - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 161
you view the pairs for the selected port or host copy " (page 67) • "Split a pair " (page 71) • "Restore a pair" (page 74) • "Delete a pair " (page 77) Item Tree Display Filter Description Lists LDKCs of the local storage more simultaneously. When clicked, opens the Display Filter dialog box where - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 162
is an external volume. For details on an external volume, see HP StorageWorks P9000 External Storage for Open and Mainframe Systems User Guide. A host to the P-VOL are duplicated at the S-VOL. Suspend: The pair has been split. The P-VOL and the S-VOL are not synchronized. 162 Continuous Access - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 163
if the remote storage system is a primary storage system. This column indicates a S-VOL if the remote storage system is a secondary storage system. A device ID ending in # (for example, 00:00:3C #) indicates the LDEV is an external volume. If a volume is a volume of XP24000/XP20000 Disk Array, "00 - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 164
continued) Used Volume Total Pairs Description • Pair JNL: The journal number for the remote storage system. This column is blank if the volume in the local storage progress of the paircreate operation reaches 100%). Copy Time on the History window shows the Continuous Access Journal Z GUI reference - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 165
changes appear in the Preview list before the changes are applied to storage systems. If you are sure that information in the Preview list is you can perform only the same type of operation that you have been doing and cannot perform most of other operations (you can only view detailed information - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 166
shows the suspend type. If the pair is waiting for initial copy, Status shows the word "Queuing". A pair's status varies between is performed, the primary system changes the pair status of both P-VOL and S-VOL. If the volume in the local storage system Continuous Access Journal Z GUI reference - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 167
/XP20000 Disk Array volume. • For volumes shared with Business Copy Z or Cnt Ac-S Z, only the Cnt Ac-J Z pair status is shown. To see the Business Copy Z or Cnt Ac-S Z pair status, you must open those program products in Remote Web Console. The CLPR number and name of the volume in the local storage - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 168
performed on the pair. Otherwise, displays nothing. • Consistency Time, the time stamp transferred by the host host is used. - Local-the system clock of the SVP is used. - None-no system clock is used, the SVP copy " (page 67) for complete information. 168 Continuous Access Journal Z GUI reference - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 169
volume number. An LDEV number ending with # indicates the volume is an external volume. For detailed information about external volumes, see HP StorageWorks P9000 External Storage for Open and Mainframe Systems User Guide. Select a S-VOL. When specifying a S-VOL, you must use the two lists to - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 170
display journal numbers used by Continuous Access Journal. DKC Select the storage system starts copying of update data as needed. The user must ensure that the P-VOL and S-VOL are already identical when using None. • Delta: No initial copy configuration or a remote copy path error. Review the error, - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 171
VOL: Does not copy cache fast write data to the S-VOL. • Copy to S-VOL: Copies cache fast write or not from frequency of host I/Os. The suspend pair operations should be performed under light I/O load conditions the above pairs. To be able to continue processing, do either of the following: Ensure - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 172
you split the pair, update data is not copied to the S-VOL. If you restore the pair later, the update data is copied to the S-VOL. Applies the settings to remote storage system. • The serial number with the LDKC number. • The controller ID with the model name. • The path type. 172 Continuous Access - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 173
Indicates the processing after recovery of the pairs. • Normal: Split pair whose status is Suspend is recovered. • Delta: Delta resync operation is performed. • Return to standby: The status of pairs is recovered from Hlde to Hold. Specify the range used for splitting a pair when a failure - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 174
storage system. This option may be used to free a host waiting for device-end from a primary storage system that cannot communicate with its the secondary storage system, thus allowing host operations to continue " (page 94) for complete instructions. 174 Continuous Access Journal Z GUI reference - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 175
Sets whether or not to copy cache-fast-write data to the S-VOL-options are Only P-VOL, which does not copy the data, and Copy to S-VOL. Applies the settings type of pair volume to display, P-VOL or S-VOL. The cache logical partition to display. CLPRs are used to segment the cache that is assigned to - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 176
internal volumes or external volumes display. not affect copy activities and is removed when the next time-stamped update is successfully copied to window This window lets you view details about the remote storage systems, logical paths between View mode. 176 Continuous Access Journal Z GUI reference - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 177
Use the DKC Operation window to: • "Configure storage systems for Continuous Access Journal Z, define logical paths " (page 58) • "Configure additional logical paths " (page 60) • View one of the following: ◦ "Remote Systems Information " (page 177) ◦ "Logical Path Information" (page 178) ◦ "Port - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 178
five-digit serial number and the LDKC number of the remote storage system. When the remote storage system is XP24000/XP20000 Disk Array, "00" appears as the LDKC number. • Path remote systems when you select DKC in the Display box and the remote system in the tree. 178 Continuous Access Journal - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 179
: A failure occurs at the logical path. More in depth status information can be viewed in the "DKC Status dialog box " (page 180). The port number of the local storage system. The port number of the remote storage system. Port Information for the local system The list area on the DKC Operation - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 180
, target, RCU target, external, or initiator/external) • PCB Mode: Mode of the port. The mode is either Standard, High, or MIX. • Error Code: An error code. DKC Status dialog box This dialog box lets you view status and other information about the logical path. 180 Continuous Access Journal Z GUI - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 181
Item No Path Status Description Number of the row. DKC Operation window 181 - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 182
use for copy operations. • remote system was performed. When clicked, the DKC Operation window refreshes when it is redisplayed. Add DKC dialog box This dialog box lets you configure local and remote systems for Continuous Access Journal Z pairs. See "Configure storage systems for Continuous Access - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 183
, 6 for P9500, 5 for XP24000/XP20000 Disk Array, 4 for XP12000 Disk Array/XP10000 Disk Array. Field intended for a future release. Logical path between local and remote systems. • Port: local system initiator port. • Pair-Port: remote system RCU target port. Opens DKC Option dialog box. DKC Option - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 184
interval. The most recent data sample time of data on the graph. Remote I/O statistics and status of remote copy monitor. History window This window lets you view the history of operations performed on pairs, and the data associated with each operation. 184 Continuous Access Journal Z GUI reference - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 185
history is now in progress, where "n (%)" indicates the progress (in %). When the updating is in progress, the checking process automatically continues until updating finishes. The updating process is checked at 10-second intervals. • Complete: Updating of operation history has completed. The date - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 186
indicates the LDEV is an external volume. For details, see HP StorageWorks P9000 External Storage for Open and Mainframe Systems User Guide. A volume ending in If the Business Continuity Manager YKMAKE command was used to create a pair, this column may not display the EXCTG number. • Copy Time: The - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 187
Operation Displayed Description Status Change by MCU(Simplex to Duplex) The status of the pair was changed from Simplex to Duplex because of an operation from the primary system. Status Change by MCU(Pending to Duplex) The status of the pair was changed from Pending to Duplex because of an - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 188
column. In such case, you can review the copy time in the volume list in remote storage system (LDKC : CU : LDEV). (7) Extended consistency group number (used only with Continuous Access Journal Z). If no EXCTG, hyphens (--) display. (8) Time taken for copying (from the start to the end of copying - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 189
in View mode. Item Tree Activities Preview Operation Preview Apply Cancel Description Provides access to the storage system. Select Subsystem. Storage . • Change System Option: Change storage system options. • Change SIM Report: Change whether to report SIMs to hosts. • Blank: Nothing will occur - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 190
• "Forcibly remove journals" (page 53) • "View the EXCTG List " (page 191). • "View Storage Systems in an EXCTG " (page 192). • "View journals in an EXCTG " (page 192). • EXCTGs, storage systems, or journals. For details, see the following subsections. 190 Continuous Access Journal Z GUI - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 191
in the Preview list. Applies settings in the Preview list to the storage system. Cancels the settings in the Preview list. Information is updated another tab and then return to the EXCTG Operation tab. • Click File/Refresh. View the EXCTG List To display the list of EXCTGs 1. Navigate to the EXCTG - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 192
number. Remote command device. The number on the left of the colon (:) is a CU number. The LDKC number, the CU number and the LDEV number are displayed. View journals in an EXCTG To display the journals in an EXCTG 1. Display the EXCTG Operation window. 192 Continuous Access Journal Z GUI - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 193
on DKC 1 by default. Clear ON this check box if you do not want to register journals of the supervisor storage system. DKC 1 to DKC 4 Represent four storage systems. Note that even if the extended consistency group uses more than four storage systems, the dialog box shows only up to the fourth - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 194
LDEV number of the remote command device. When you register a journal of the supervisor storage system, the LDKC, the CU, and LDEV numbers cannot be specified. journals. There are two lists named journals in the Add Journal dialog box. To register journals in an extended consistency group, move the - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 195
Access Journal that supports mainframe volumes. P9000 or XP Continuous Access Synchronous software. The version of Continuous Access Synchronous that supports mainframe volumes. A volume in the disk array that accepts Continuous Access, Business Copy, or P9000 for Business Continuity Manager - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 196
RAID level. In an XP disk array this is also referred to as an array group or parity group. The CLI configuration and replication tool for the P9000 or XP disk array that system administrators can use to enter RAID Manager commands from open-system hosts to perform Continuous Access, Business Copy - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 197
, 35 extender graphic, 47 external port, 44 F Fibre Channel, 45 fields Usage Monitor window, 88 file recovery;database recovery, 105 G graphing performance data, 89 Guidelines for preparing systems, 37 H help obtaining, 126 hosts supported, 18 how it works, 8 HP technical support, 126 I initial copy - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 198
site recovery resuming operations, 106 R RAID groups, planning, 27 RAID levels supported, 18 RCU target port, 44 related documentation, 126 remote command device about, setup;delta resync:using remote command devices with, 140 assigning mirrors, 141 remote I/O copy statistics, 90 required number of - HP P9000 | HP StorageWorks P9000 Continuous Access Journal for Mainframe Systems - Page 199
, 37 System requirements, 17 T target port, 44 technical support HP, 126 service locator website, 127 text symbols, 128 time stamp, 28 typographic conventions, 127 V VOLSER, requirements, 29 volume max capacity, 28 W websites HP , 127 HP Subscriber's Choice for Business, 126 product manuals, 126 199
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HP StorageWorks
P9000 Continuous Access Journal for
Mainframe Systems User Guide
Abstract
This guide explains how to use HP StorageWorks P9000 Continuous Access Journal for Mainframe Software to replicate data
between local and remote HP StorageWorks P9000 disk arrays and to achieve disaster tolerance with maximum application
performance. Topics include setting up remote copy connections, configuring the storage system, creating and monitoring
remote copies, recovering from a disaster, and troubleshooting. The intended audience is a storage system administrator or
authorized service provider with independent knowledge of HP StorageWorks P9000 disk arrays and the HP StorageWorks
Remote Web Console.
HP Part Number: AV400-96371
Published: May 2011
Edition: Fourth