Dell VNX5600 Using VDM MetroSync with VDM MetroSync Manager
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- Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 1
EMC® VNX® Series Version 8.1 Using VDM MetroSync with VDM MetroSync Manager for Disaster Recovery P/N 302-002-248 REV. 04 - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 2
Hopkinton, Massachusetts 01748-9103 1-508-435-1000 In North America 1-866-464-7381 www.EMC.com 2 EMC VNX Series 8.1 Using VDM MetroSync with VDM MetroSync Manager for Disaster Recovery - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 3
VDM.... 35 Migrate Data Mover configurations and cabinet level service 35 Create a VDM synchronous replication session 36 Configure CIFS CA support 38 Configure for NFS I/O transparency in VDM synchronous replication session...40 Chapter 5 Managing by using the VNX for File CLI 43 About - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 4
Chapter 8 Service checklists 81 Enable VDM synchronous replication service checklist 82 VDM synchronous replication session checklist 82 Chapter 9 Troubleshooting 85 EMC E-Lab Interoperability Navigator 86 4 EMC VNX Series 8.1 Using VDM MetroSync with VDM MetroSync Manager for Disaster - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 5
86 NAS database mirrors are out of sync 86 How to recover when all Data Movers are panicking 87 Error messages 88 Training and Professional Services 88 Appendix A Changing FSID ranges 91 Update the FSID range minimum size 92 EMC VNX Series 8.1 Using VDM MetroSync with VDM MetroSync - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 6
CONTENTS 6 EMC VNX Series 8.1 Using VDM MetroSync with VDM MetroSync Manager for Disaster Recovery - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 7
, and service, go to Online Support (registration required) at http://Support.EMC.com. Troubleshooting-Go to Online Support. After logging in, locate the applicable Support by Product page. Technical support-For technical support and service requests, go to Customer Service on Online Support. After - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 8
Preface Note Do not request a specific support representative unless one has already been assigned to your particular system problem. Your comments Your suggestions will help us continue to improve the accuracy, organization, and overall quality of the user publications. Please send your opinion of - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 9
CHAPTER 1 Introduction Topics include: l Welcome to VDM MetroSync 10 l System requirements 10 l Restrictions and limitations 11 l User interface choices 14 l Related information 14 Introduction 9 - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 10
the source is unavailable. For DR support in the event of an unplanned failover Manager software. Along with the same manual operations that you can perform by using CLI commands, the VDM MetroSync Manager MirrorView/S and SnapView Clone enablers must be installed on each array. l All file systems - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 11
occur. l Stop the VDM MetroSync Manager service: n If you are manually activating a standby Data Mover by service will not work correctly. l During failover, if a Consistency Group beneath a synchronous replication session is not in a "synchronized" state (for example, the source site is powered - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 12
Movers are panicking on page 87 process to fix the NAS service before a synchronous replication session can be cleaned. l VDM MetroSync is not supported on systems where Cabinet-level File DR solutions are in use. EMC VNX Series 8.1 Using VDM MetroSync with VDM MetroSync Manager for Disaster Recovery - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 13
a loss of the source power occurs), the network infrastructure should remain in place when the source system is returned to service. This allows the IP CIFS CA support for VDM synchronous replication. Manual migration The replication of Data Mover configurations or Cabinet level service is not - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 14
Cabinet level service: n Usermapper service User interface Managing CIFS on VNX l Configuring NFS on VNX l Managing Volumes and File Systems for VNX Manually l Using VNX SnapSure l Configuring Virtual Data Movers on VNX l Parameters Guide the Online Support website at http://Support.EMC.com. - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 15
Introduction the Support by Product page, to locate information for the specific product or feature required. Related information 15 - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 16
Introduction 16 EMC VNX Series 8.1 Using VDM MetroSync with VDM MetroSync Manager for Disaster Recovery - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 17
CHAPTER 2 Concepts Topics include: l VDM synchronous replication logical entities 18 l Use cases...19 Concepts 17 - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 18
the VDM. This also happens if the VDM is modified to enable the -syncreplicable flag. 18 EMC VNX Series 8.1 Using VDM MetroSync with VDM MetroSync Manager for Disaster Recovery - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 19
sync-replicable NAS pool. VDM MetroSync can be used in the following use cases: l Disaster recovery (DR) at the VDM level: n Human error n Power outages n Environmental (for example, a flood or storm) l Maintenance l Load balancing l More efficient use of hardware (a VDM-level DR solution does not - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 20
Concepts 20 EMC VNX Series 8.1 Using VDM MetroSync with VDM MetroSync Manager for Disaster Recovery - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 21
VNX systems 23 l Add systems to the same Unisphere domain 25 l Create RAID groups for WIL and CPL LUNs 25 l Enable the VDM synchronous replication service 26 l Create a block storage pool on source and destination VNX2 systems 28 Setting up prerequisites 21 - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 22
planning sheet for your VDM Sync Replication setup information. Table 1 VDM synchronous replication setup planning sheet What Control Stations, you must use the IP aliasing feature. If you do not, management of your VDM replication sessions will become degraded in the event that the primary Control - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 23
times must be within 10 minutes of each other. Take into account time zones and daylight savings time, if applicable. EMC recommends using an NTP service on the Control Stations to control this function. You can set this up using VIA during the VNX system initialization process or by using the - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 24
192.168.168.12 -passphrase nasadmin Output: operation in progress (not interruptible)... id = 2 name = cs100 24 EMC VNX Series 8.1 Using VDM MetroSync with VDM MetroSync Manager for Disaster Recovery - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 25
Login to the destination system with the correct username and password. Create RAID groups for WIL and CPL LUNs Before you begin Fibre Channel MirrorView/S ports on each system must be cabled and zoned to each other. For use with MirrorView/S, you need to create a RAID group that has write intent - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 26
, select Data Protection. b. From the task list, under Protection, select Manage Mirror Connections. c. Select the system that appears in the Unconnected/Unknown Systems be in effect before you enable the VDM synchronous replication service: l Both source and destination systems have been added - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 27
remote RAID group or a block storage pool to create synchronous replication mirror LUNs. Example: To enable the VDM synchronous replication service, on either the source or destination system type: nas_cel -syncrep -enable id=1 -local_fsidrange 4096,18000 remote_fsidrange 18001,32000 -local_storage - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 28
an initial copy. If this happens, try to enable the service again after the mirrors and Clone groups become in-sync (this the Unisphere online help. You can also create step-by-step instructions tailored to your VNX environment by going to the mydocuments site MetroSync Manager for Disaster Recovery - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 29
for each file system on your VDM............35 l Migrate Data Mover configurations and cabinet level service 35 l Create a VDM synchronous replication session 36 l Configure CIFS CA support 38 l Configure for NFS I/O transparency in VDM synchronous replication session... 40 Configuring 29 - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 30
pools Before you begin The procedures in this section require the following: l The VDM synchronous replication service must be enabled. l Data LUNs for NAS resources and NAS Disks Volumes have been created. 30 EMC VNX Series 8.1 Using VDM MetroSync with VDM MetroSync Manager for Disaster Recovery - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 31
before you create a sync-replicable VDM: l The synchronous replication service has been enabled between the two VNX2 systems, source and destination a VDM from non-sync-replicable to sync-replicable on page 56 for instructions to modify a non-syncreplicable VDM to be syncreplicable. Procedure 1. At - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 32
= Creates a VDM with an optional name for the specified VDM. The movername is casesensitive and supports the following characters: a through z, A through Z, 0 through 9, _ (underscore), - (hyphen) though VNX Series 8.1 Using VDM MetroSync with VDM MetroSync Manager for Disaster Recovery - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 33
Configuring Create the first file system checkpoint on a sync-replicable NAS pool To create the first checkpoint for a file system on a sync-replicable NAS pool, do the following: Procedure 1. Specify the name or ID of the file system, checkpoint name (optional), SavVol size (optional), and pool of - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 34
before you create a network interface for a sync-replicable VDM: l The synchronous replication service has been enabled between the two VNX2 systems, source and destination. l A sync- = name of the Data Mover 34 EMC VNX Series 8.1 Using VDM MetroSync with VDM MetroSync Manager for Disaster Recovery - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 35
For detailed information about creating CIFS shares and NFS exports, refer to Configuring and Managing CIFS on VNX and Configuring NFS on VNX. These documents are located on Online Support (registration required) at http://Support.EMC.com and in the Related documents section of the VNX Series on the - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 36
, does not get migrated with this command. The routes must be configured manually. To add a default gateway or a route entry, a network interface configured and ready for communication. l Synchronous replication service has been enabled between the two VNX2 systems, Manager for Disaster Recovery - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 37
to match the configuration of the source, from the destination VNX2 system, you must manually migrate some Data Mover and Cabinet level service items. Refer to Migrate Data Mover configurations and cabinet level service on page 35 for details. To create a VDM synchronous replication session, do the - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 38
Guide for VNX for File provides more information on how to modify this parameter. 4. On the destination VNX2 system, ensure the Data Mover configurations and cabinet level service that are needed for the VDM under synchronous 38 EMC VNX Series 8.1 Using VDM MetroSync with VDM MetroSync Manager - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 39
command to start CIFS service manually. Type: $ server_setup server_2 -Protocol cifs -option start 6. If the VNX system needs to communicate outside of its subnet, you must configure route settings using one of the following methods (refer to Configuring and Managing support 39 - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 40
to test whether the network interface works: l When the VDM is not in service to users, do a synchronous replication session reverse and check if the CIFS settings using one of the following methods (refer to Configuring and Managing Networking on VNX for details): Add a default gateway using the - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 41
. If the destination VNX2 system network interface is created manually after synchronous replication session creation, it can be configured to test whether the network interface works: l When the VDM is not in service to users, do a synchronous replication session reverse and check if the NFS client - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 42
Configuring 42 EMC VNX Series 8.1 Using VDM MetroSync with VDM MetroSync Manager for Disaster Recovery - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 43
by using the VNX for File CLI Topics include: l About using the VNX for File CLI for managing 44 l List information for VDM synchronous replication service 44 l Show information for a sync-replicable VDM 44 l Reverse a synchronous replication session 45 l Failover a synchronous replication - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 44
" chapter for details. The remaining topics are ancillary tasks related to the management of the VDM synchronous replication environment and are also useful for troubleshooting. List information for VDM synchronous replication service To see which storage system has the VDM synchronous replication - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 45
Managing by using the VNX for File CLI To display information for a specific sync- No FSID conflicts exist between source and destination systems. l The synchronous replication's session status and service status for remote to local is synchronized. l Local and remote Data Mover should have the same - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 46
, in order to support CIFS CA (Continuous Availability) on reverse, you must use the SMB 3.0 client with CA enabled. If the service outage time can be cleaning local... done: 1 s start...... Service outage 46 EMC VNX Series 8.1 Using VDM MetroSync with VDM MetroSync Manager for Disaster Recovery - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 47
Managing by done: 3 s Now turning up local network interface(s)... done: 0 s Service outage end: 83 s Now mounting unexported FS(s)/checkpoint(s)... done: 0 s the synchronous replication session reverse operation completes. You must manually remove the invalid DNS entry after the reverse operation. - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 48
not set up automatic failover using the VDM MetroSync Manager product, you need to manually failover the source sync-replicable VDM to the destination in order to support CIFS CA (Continuous Availability) on failover, you must use the SMB 3.0 client with CA enabled. If the service outage time can be - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 49
Managing by using : 4 s Now turning up local network interface(s)... done: 0 s Service outage end: 69 s Now mounting unexported FS(s)/checkpoint(s)... done: 0 synchronous replication session failover operation completes. You must manually remove the invalid DNS entry after the failover operation - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 50
Managing by using the VNX for File CLI After you finish If the failed If the failed site Data Mover will be powered on, the network infrastructure between the source and remote systems should remain in place when the source system is returned to service. This allows the IP address conflict avoidance - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 51
Managing by using the VNX for File CLI 2. Run the nas_syncrep -Clean command from the source site for either a specified synchronous replication session or all synchronous - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 52
Managing by using the VNX for File CLI Procedure 1. At the source VNX2 system site, type for a single system or for both the source and destination systems. To view VDM synchronous replication service information, do the following: Procedure 1. At the source site, type the following command syntax: - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 53
Managing by using the VNX for File CLI -info {|id=} [-verbose] = displays VDM synchronous replication information about the specified VNX system. Example: To display VDM synchronous replication service information for a remote system with synchronous replication enabled, type: - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 54
Managing by using the VNX for File CLI b. Run the nas_syncrep -delete id= command replication with MirrorView feature on the specified VNX system. Example: To disable the VDM synchronous replication service, on the source system type: nas_cel -syncrep -disable id=1 54 EMC VNX Series 8.1 Using - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 55
Managing by using the VNX for File CLI Output: Now unmounting sync replica done Now removing FSID range [1000,10000] on local system... done Now removing other sync replication service settings on local system... done done Note If your system contains two Control Stations, the output also - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 56
vdm server = server_2 rootfs = root_fs_vdm_test_vdm I18N mode = ASCII mountedfs = syncreplicable = True member_of = status : defined = enabled actual = loaded, ready Interfaces to services mapping: 56 EMC VNX Series 8.1 Using VDM MetroSync with VDM MetroSync Manager for Disaster Recovery - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 57
Managing by using the VNX for File CLI Results The sync-replicable flag on I18N mode = UNICODE mountedfs = member_of = status : defined = enabled actual = permanently unloaded Interfaces to services mapping: Results The pool under the deleted VDM becomes a non-sync-replicable VDM pool as a result of - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 58
Managing by using the VNX for File CLI Procedure 1. At the local site, type the following command syntax: active = my_system = my_pool1 = server_2 = my_system1 = my_pool1 = server_2 = syncrep_72_0784_72_642 58 EMC VNX Series 8.1 Using VDM MetroSync with VDM MetroSync Manager for Disaster Recovery - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 59
Managing by using the VNX for File CLI session_status = sync_in_progress (8%) local_cg_state = session) on page 59). If an active VDM synchronous replication session exists, follow the instructions in Extend a sync-replicable NAS pool (with synchronous replication session) on page 59 - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 60
into a sync-replicable NAS pool with a synchronous replication session on it, do the following: Procedure 1. On the main VDM MetroSync Manager window, verify that the Service State is Stopped. If not, click Stop. 2. In Unisphere, navigate to Storage > LUNs. Click Create and provision additional LUNs - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 61
Managing by using the VNX for File CLI Note The initial copy operation takes replication session) on page 61). If an active VDM synchronous replication session does exist, follow the instructions in Shrink a sync-replicable NAS pool (with synchronous replication session) on page 62 to delete the - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 62
sync-replicable NAS pool with a synchronous replication session on it, do the following: Procedure 1. On the main VDM MetroSync Manager window, verify that the Service State is Stopped. If not, click Stop. 2. Delete the synchronous replication session on the VDM. See Delete a synchronous replication - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 63
Managing by using the VNX for File CLI Configuring for added secondary Control section require the following: l Secondary Control Stations have been installed on the source and destination VNX2 Systems. l The NTP Service is configured on the source and destination secondary Control Stations. - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 64
Managing by using the VNX for File CLI IP alias of the destination VNX2 system, then run the command on the destination that the VDM synchronous replication feature is operational by using nas_syncrep -list. 64 EMC VNX Series 8.1 Using VDM MetroSync with VDM MetroSync Manager for Disaster Recovery - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 65
CHAPTER 6 Working with ReplicatorV2 sessions Topics include: l About Replicator V2 sessions 66 l Enable Preserve RepV2 session for VDM MetroSync 66 l Create a ReplicatorV2 session on a sync-replicable VDM 66 l Show Preserve RepV2 session for VDM MetroSync status 67 l Disable Preserve RepV2 - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 66
this feature on a VNX only if: l The VNX has the VDM synchronous replication service enabled. l The Data Movers have the correct operating software version. l The system to System A l System C to System B 66 EMC VNX Series 8.1 Using VDM MetroSync with VDM MetroSync Manager for Disaster Recovery - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 67
b. Create LUNs. c. Add LUNs to the ~filestorage Storage Group. d. Run a Rescan. e. Create a new VDM. f. If using CIFS, make sure that the CIFS service is started. 5. On System A, create a new ReplicatorV2 session for a file system from System A to System C. Put the destination file system on the VDM - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 68
Movers = Description = Repv2 id=237_BB0050562C7C86_0000_242_BB0050562C7C82_0000 Restored. Error 13422034949: Internal error. Restore Repv2 id=247_BB0050562C7C87_0000_252_BB0050562C7C85_0000 failed. 68 EMC VNX Series 8.1 Using VDM MetroSync with VDM MetroSync Manager for Disaster Recovery - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 69
Originator Start Time End Time Schedule Response Statuses Working with ReplicatorV2 sessions = [email protected] = Tue May 12 22:27:28 EDT 201 = Tue May 12 22:27:43 EDT 201 = n/a = Restore ReplicatorV2 sessions 69 - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 70
Working with ReplicatorV2 sessions 70 EMC VNX Series 8.1 Using VDM MetroSync with VDM MetroSync Manager for Disaster Recovery - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 71
Manager configuration wizard 72 l Configure a synchronous replication session's failover policy 72 l Configure a synchronous replication session's failover priority 74 l Select VDM IP addresses to monitor 75 l Start the VDM MetroSync service 75 l Stop the VDM MetroSync service 76 l Manually - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 72
Manager The VDM MetroSync Manager configuration wizard After you install the VDM MetroSync Manager, the first time it opens, the configuration wizard starts. With this wizard you can: l Configure storage systems: n VDM MetroSync Manager VDM MetroSync service is started, or you can manually run - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 73
failed over because of a VDM interface check failure, you must first fix the problem, and then either manually reverse the failed over session or rediscover the configurations for VDM MetroSync Manager. Otherwise, no sessions are automatically failed over to the site. The following table identifies - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 74
performs the VDM check and automatically fails over), Manual (VDM MetroSync Manager does the VDM check, but user must manually fail over the session), or NA (the VDM is ignored). The Failover Policy is effective once the VDM MetroSync service is started. By default, automatic failover is configured - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 75
2. On the main window, click Start. Results The service that runs is called "EMC VDM MetroSync service" with a description of "EMC VDM MetroSync Manager". When the VDM MetroSync service is running, the VDM MetroSync Manager monitors all configured VDM services on both Site A and Site B. When the VDM - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 76
To stop the VDM MetroSync service: Procedure 1. On the main VDM MetroSync Manager window, click Stop. Manually failover a synchronous replication session Before you begin The automated failover service cannot be running during a manual failover operation. Stop the service if it is still running - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 77
To create a collection log to help with troubleshooting issues: Procedure 1. On the main VDM MetroSync Manager window, select Help > Log Collection. 2. By MetroSync Manager window, verify that the Service State is Stopped. If not, click Stop. 2. To discover monitored objects, select Management > - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 78
the Main log window, you may see the same warning or error messages repeated. l If one event check failure causes a session failover, VDM MetroSync Manager stops checking the event associated with the failed over session, but continues showing the event check failure in the Main log window. l If you - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 79
Using VDM MetroSync Manager Procedure 1. On the main VDM MetroSync Manager window, select one or more synchronous replication sessions. 2. Click the (information) icon. Show synchronous replication status 79 - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 80
Using VDM MetroSync Manager 80 EMC VNX Series 8.1 Using VDM MetroSync with VDM MetroSync Manager for Disaster Recovery - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 81
if there are any issues that need to be resolved with your VDM synchronous replication for disaster recovery configuration. Topics include: l Enable VDM synchronous replication service checklist 82 l VDM synchronous replication session checklist 82 - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 82
service setup. If you answer no to any of these questions, you should troubleshoot those issues to resolve them. Table 3 VDM synchronous replication service setup checklist Service service enabled? ( syncrep column, the service should be showing troubleshoot those issues to resolve them. - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 83
Service checklists Table 4 VDM synchronous replication session creation checklist VDM replication session creation yes/no Is the VDM replication session state either sync in progress or - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 84
Service checklists 84 EMC VNX Series 8.1 Using VDM MetroSync with VDM MetroSync Manager for Disaster Recovery - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 85
document, contact your Customer Support representative. Problem Resolution Roadmap for VNX contains additional information about using Online Support and resolving problems. Topics included in this are panicking 87 l Error messages 88 l Training and Professional Services 88 Troubleshooting 85 - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 86
Troubleshooting EMC E-Lab Interoperability Navigator The EMC E-Lab™ Interoperability Navigator is a searchable, web-based application that provides access to product interoperability support matrices. It is available on Online Support at https://Support the VDM MetroSync Manager's Main log ( service - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 87
Troubleshooting CETV2151700109,MirrorView=nasdb_0109_428_mv, CloneGroup=nasdb_428_0109_clone service_status = ID the system assigned when the clone was added. 4. Repeat step 1 to confirm the service status is now in_sync. How to recover when all Data Movers are panicking After a failover - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 88
After the Control Station reboot, the NAS service should be working and all Data Movers will be in the contacted state. Error messages All event, alert, and status messages provide detailed information and recommended actions to help you troubleshoot the situation. To view message details, use - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 89
Troubleshooting the-art labs conveniently located throughout the world. Customer training courses are developed and delivered by experts. Go to Online Support at https:// Support.EMC.com for course and registration information. Professional Services can help you implement your system efficiently. - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 90
Troubleshooting 90 EMC VNX Series 8.1 Using VDM MetroSync with VDM MetroSync Manager for Disaster Recovery - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 91
APPENDIX A Changing FSID ranges Topics include: l Update the FSID range minimum size 92 Changing FSID ranges 91 - Dell VNX5600 | Using VDM MetroSync with VDM MetroSync Manager - Page 92
to change the from 8192 to the value that you want. Example: fsidrange:2100: 92 EMC VNX Series 8.1 Using VDM MetroSync with VDM MetroSync Manager for Disaster Recovery
EMC
®
VNX
®
Series
Version 8.1
Using VDM MetroSync with VDM MetroSync Manager
for Disaster Recovery
P/N 302-002-248 REV. 04