Dell Unity XT 680 EMC Unity Family Configuring Hosts to Access Fibre Channel F
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- Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 1
Dell EMC Unity™ Family Configuring Hosts to Access Fibre Channel (FC) or iSCSI Storage Version 5.1 Part Number: 302-002-568 June 2021 Rev. 05 - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 2
of your product. CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. © 2016 - 2021 Dell Inc. or its subsidiaries. All rights reserved. Dell - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 3
-path management software 12 Installing PowerPath...12 Configuring FC LUNs for the host...12 Windows host - Setting up for FC LUNs...12 Install the Unity VSS HW Provider...13 For a multi-path configuration, install the MPIO feature 13 Set registry values...13 Windows host - Connecting to an FC LUN - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 4
Unity VSS HW Provider ...32 Install the Microsoft iSCSI Initiator and iSCSI initiator service on the Windows host (Windows Servers)...32 Start the iSCSI initiator service LUNs...40 iSCSI troubleshooting...40 iSCSI session troubleshooting...40 Known Microsoft iSCSI Initiator problems...41 4 Contents - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 5
Traffic Manager (STMS 54 Configure Solaris access to an iSCSI interface (target 55 Prepare the LUN to receive data...55 What's next?...56 iSCSI session troubleshooting...56 Part III: Migrating FC or iSCSI Data 57 Chapter 6: Migrating FC or iSCSI Data to the Storage System 58 FC or iSCSI data - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 6
Configure the iSCSI initiator with MPIO on each cluster node 62 Enable MPIO on each cluster node...63 Verify the MPIO settings on each cluster node 63 Present the storage devices to the Primary Node in the cluster 64 Configure the cluster configuration on the Primary Node 64 6 Contents - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 7
feature documentation or release notes, go to Unity Technical Documentation at: dell.com/unitydocs. Troubleshooting For information about products, software updates, licensing, and service, go to Support (registration required) at: dell.com/ support. After logging in, locate the appropriate product - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 8
set of documentation are available on Online Support. NOTE: Unless otherwise noted in this guide, "Windows Server" refers to the following Unity iSCSI and FC interfaces and with the VSS service on Windows Servers hosts to provide consistent shadow copy creation and addressing. Because the Unity - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 9
Refer to the Microsoft documentation for more information about VSS. Introduction 9 - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 10
I Fibre Channel (FC) Topics: • Setting Up a Windows or Mac OS Host to Use LUN storage over Fibre Channel (FC) • Setting Up a Unix Host to Use FC Storage 10 Fibre Channel (FC) - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 11
to each other over the SAN. For a multi-pathing environment, each Unity FC LUN for the host must have two paths associated with it. These to all hosts. NOTE: Directly attaching a host to a storage system is supported if the host connects to both SPs and has the required multipath software. Setting - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 12
Unity Support Matrix on the support website for compatibility and interoperability information. NOTE: PowerPath is not supported guide for the host's or virtual machine's operating system. This guide is available on Online Support up, verify that the PowerPath service has started. Configuring FC LUNs - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 13
Unity VSS tool on online support. NOTE: You may need to filter by Support instructions in the wizard to complete the installation of the Unity VSS provider. Starting and stopping the Unity VSS HW Provider The Unity VSS HW Provider runs as a Windows service serious system-wide problems that can require - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 14
Registry keys to update (iSCSI only) Registry keys LinkDownTime Instructions Set to 600. AsyncLogoutPauseTimeout (new value) Add this REG_DWORD appear on the Fibre Channel Ports tab. Optionally, add additional FC ports manually: a. Select the Fibre Channel Ports tab. b. Click Add. 14 Setting - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 15
and select MPIO or Start > Run and type mpiocpl.exe. 2. In the MPIO Properties, select MPIO Devices, then Click Add to show the Add MPIO Support dialog box. 3. Fill in the "DGC VRAID ". NOTE: There should be 5 extra spaces after the word DGC and 11 extra spaces after the word VRAID - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 16
system asks you to initialize the disk, click Yes, but do not choose to make the disk a dynamic disk because the iSCSI interfaces do not support dynamic disks. For a given LUN, its drive letter, disk number, and LUN number are independent. 3. Use a quick format operation (Windows Servers) or the New - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 17
Set up a Mac OS host to use LUNs Before the Mac OS host can use a LUN, you must use the Mac OS Disk Utility to: 1. Format the LUN 2. Partition the LUN Format the LUN Steps 1. On the host, go to Finder > Application > Utilities. 2. Double-click Disk Utility. 3. In the left panel, select the LUN. 4. - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 18
visible to each other over the SAN. For a multi-pathing environment, each Unity FC LUN for the host must have two paths associated with it. These to all hosts. NOTE: Directly attaching a host to a storage system is supported if the host connects to both SPs and has the required multipath software. - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 19
information, refer to the Unity Support Matrix on the support website. Setting up a system guide for the host's or virtual machine' operating system. This guide is available on Online Support back up, verify that the PowerPath service has started. Installing native multipath software Whether - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 20
with YaST or Package Manager. If an update is available, follow the instructions for installing it on the http://www.redhat.com website. What's next AIX ODM Definitions on the software downloads section on the Support tab of the Online Support website. b. Choose the version of the EMC ODM Definitions - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 21
download the AIX ODM package version 5.3.x or 6.0.x from the FTP server at ftp.emc.com. NOTE: IBM AIX Native MPIO for Unity requires a different ODM package. Contact your service provider for more information. a. Access the FTP server by issuing the following command: ftp ftp.emc.com b. Log in with - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 22
scan the system for LUNs using AIX, PowerPath, or MPIO. Prerequisites About this task After installing the AIX ODM package for Unity, scan and verify LUNs on the Unity system. Steps 1. Use AIX to scan for drives using the following command: cfgmgr 2. Verify that all FC drives have been configured - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 23
Citrix XenServer host - Setting up for FC storage To set up a Citrix XenServer host to use LUNs over Fibre Channel, perform these tasks: 1. Configure the FC target 2. Configure the FC target for multipathing Configure the FC target About this task The XenServer operating system includes FC software - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 24
Download and install the HP-UX FC HBA software Steps 1. On the HP-UX host, open a web browser and download the initiator software from the HP-UX website. 2. Install the initiator software using the information on the site or that you downloaded from the site. Make the storage processors available to - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 25
at a LUN with LUN ID 0 is present on the Unity system. See Modify Host LUN IDs for information on manually changing LUN IDs. 2. On the Linux server, run the following Linux knowledgebase article for more information: https://www.suse.com/support/kb/doc/?id=7009660 Set up the Linux host to use the - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 26
Steps 1. Find the LUN ID: a. In Unisphere, select Storage > Block > LUNs. b. On the LUN, select Edit. c. On the Properties window, select Access > Access details to determine the LUN ID. 2. On the host, partition the LUN. 3. Create a file system on the partition. 4. Create a mount directory for the - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 27
Prepare the LUN to receive data About this task If you do not want to use the LUN as a raw disk or raw volume, then before Solaris can send data to the LUN, you must perform the following tasks as described in the Solaris operating system documentation: Steps 1. Partition the LUN. 2. Create and - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 28
Topics: • Setting Up a Windows or Mac OS Host to Use LUN storage over iSCSI • Setting Up a Unix Host to Use iSCSI Storage II iSCSI 28 iSCSI - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 29
Mac OS host - Setting up for iSCSI LUNs • iSCSI troubleshooting Requirements for setting up a host These system and network requirements must be NOTE: Path management software is not supported for a Windows 7 or Mac OS host connected to a Unity system. When implementing a highly-available network - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 30
, each interface must be configured on a separate VLAN. ● Network switches may be on separate subnets. NOTE: Directly attaching a host to a Unity system is supported if the host connects to both SPs and has the required multipath software. The following figure shows a highly-available iSCSI network - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 31
guide for the host's or virtual machine's operating system. This guide is available on Online Support machine is back up, verify that the PowerPath service has started. Configuring iSCSI LUNs for the host the Unity CLI and creating a host. If your host is not already logged in, manually create an - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 32
follows: a. Locate the Unity VSS tool on online support. NOTE: You may need to filter by Support Tools. b. Choose the instructions in the wizard to complete the installation of the Unity VSS provider. Starting and stopping the Unity VSS HW Provider The Unity VSS HW Provider runs as a Windows service - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 33
task NOTE: Incorrectly modifying the Registry can cause serious system-wide problems that can require you to reinstall the system. Use the 2. Registry keys to update (iSCSI only) Registry keys LinkDownTime Instructions Set to 600. AsyncLogoutPauseTimeout (new value) Add this REG_DWORD key - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 34
iSCSI only) (continued) Registry keys Instructions DelayBetweenReconnect PortalRetryCount Find the DelayBetweenReconnect value. this information the initiator uses the iSCSI discovery process. The iSCSI interfaces support discovery with or without an iSNS server. Without iSNS discovery, you must - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 35
. Steps 1. Launch the MPIO application. 2. On the MPIO Properties dialog box, click the Discover Multi-Paths tab. 3. Under SPC-3 compliant, select Add support for iSCSI devices. 4. Click Add. A Reboot Required dialog box opens. 5. In the Reboot Required dialog box, click Yes. 6. Once the server - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 36
c. Set Target secret to the same secret that is configured for the host initiator on the storage system iSCSI interface. The iSCSI interfaces support CHAP secrets of 12 to 16 characters only. d. If the storage system iSCSI interface is configured for mutual CHAP, select Perform Mutual Authentication - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 37
Initiator is by going to the Control Panel and selecting All Control Panel Items > Administrative Tools > iSCSI Initiator. 2. If prompted to start the iSCSI service, click Yes. 3. In the Targets tab, enter the IP address of the storage system iSCSI interface and click Quick Connect. 4. In the Quick - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 38
select MPIO or Start > Run and enter mpiocpl.exe. 2. Open the MPIO control panel, and click the Discover Multi-Paths tab. 3. Select the Add support for iSCSI devices check box, and click Add. 4. When prompted to restart the computer, click Yes. When the computer restarts, the MPIO Devices tab lists - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 39
For a given LUN, its drive letter, disk number, and LUN number are independent. 3. Use a quick format operation (Windows Servers) or the New Simple Volume wizard (Windows 7) to create a volume on the disk with the following properties: ● NTFS file system ● 64K location unit size NOTE: Do not format - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 40
LUN, go to Migrating FC or iSCSI Data to the Storage System. iSCSI troubleshooting This section contains information about: ● iSCSI session troubleshooting ● Known Microsoft iSCSI Initiator problems iSCSI session troubleshooting Steps 1. Use ping with the IP address to verify connectivity from the - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 41
initiator logs the iSNS error auth unknown (0x6) to the Windows Event Log. 1. Select Windows Administrative Tools > Services. 2. Stop and restart the Microsoft iSCSI Initiator. Login problems occur when you use iSNS for target discovery. When you configure the initiator with iSNS target discovery - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 42
Table 3. Microsoft iSCSI Initiator problems (continued) Problem Symptom Cannot write to a filesystem on the Filesystem is read-only. storage resource connected to the host. Workaround 1. Verify that the registry values as set - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 43
Setting up for iSCSI storage • What's next? • iSCSI session troubleshooting Requirements for setting up a host These system and network requirements must be met on separate subnets. NOTE: Directly attaching a host to a Unity system is supported if the host connects to both SPs and has the required - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 44
mulitpath software on a Citrix XenServer, HP-UX 11i, Linux, or Solaris host For compatibility and interoperability information, refer to the Unity Support Matrix on the support website. Setting up your system for multi-path management software For your system to operate with hosts running multi-path - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 45
installation and administration guide for the host's or virtual machine's operating system. This guide is available on Online Support. If the host host or virtual machine is back up, verify that the PowerPath service has started. Installing native multipath software Whether you need to install - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 46
with YaST or Package Manager. If an update is available, follow the instructions for installing it on the http://www.redhat.com website. What's next AIX ODM Definitions on the software downloads section on the Support tab of the Online Support website. b. Choose the version of the EMC ODM Definitions - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 47
download the AIX ODM package version 5.3.x or 6.0.x from the FTP server at ftp.emc.com. NOTE: IBM AIX Native MPIO for Unity requires a different ODM package. Contact your service provider for more information. a. Access the FTP server by issuing the following command: ftp ftp.emc.com b. Log in with - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 48
a. Move the ODM package into the user install directory. cd /usr/sys/inst.images b. Uncompress the files. uncompress EMC.AIX.5.3.x.x.tar.Z or uncompress EMC.AIX.6.0.x.x.tar.Z c. Open, or untar, the files. tar -xvf EMC.AIX.5.3.x.x.tar or tar -xvf EMC.AIX.6.0.x.x.tar d. Create or update the TOC file. - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 49
Steps 1. On the storage system, from the iSCSI Interfaces page in Unisphere (Storage > Block > iSCSI Interfaces), determine the IP address of the system interface (target) to which you want the host initiator to connect. 2. Open the XenCenter console. 3. Click New Storage at the top of the console. - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 50
name: iscsiutil [iscsi-device-file] -i -N iscsi-initiator-name NOTE: For mor information on IQN and EUI formats, refer to the HP-UX iscsi software initiator guide. where: ● iscsi-device-file is the iSCSI device path, /dev/iscsi, and is optional if you include the -i or -N switches in the command - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 51
For example: iscsiutil -a -I 192.1.1.110 or, if you specify the hostname, iscsiutil -a -I target.hp.com If an iSCSI TCP port used by the discovery target is different than the default iSCSI port of 3260, you must specify the default TCP port used by the discovery target, for example, iscsiutil -a -I - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 52
driver: NOTE: The EMC Host Connectivity Guide for Linux on the EMC Online Support website provides the latest information about configuring the initiators connected to the iSCSI interface with CHAP authentication enabled, stop the iSCSI service on the Linux host. 3. Using a text editor, such as vi, - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 53
settings Variable name Default setting Recommended setting node.startup manual auto node.session.iscsi.InitialR2 No Yes T node .replacement_timeout. 5. To start the iSCSI service automatically on reboot and powerup, set the run level to 345 for the iSCSI service. 6. Discover and log in to - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 54
Set up the Linux host to use the LUN About this task Perform the following tasks as described in the Linux operating system documentation: Steps 1. Find the LUN ID: a. In Unisphere, select Storage > Block > LUNs. b. On the LUN, select Edit. c. On the Properties window, select Access > Access details - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 55
4. For the best performance and failover protection, we recommend that you set the load balancing policy to round robin: setting load-balance="round-robin" Configure Solaris access to an iSCSI interface (target) About this task Before a Solaris iSCSI initiator can send or receive data to the iSCSI - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 56
iSCSI Data to the Storage System. iSCSI session troubleshooting About this task If you receive a connection error LUNs on the target, you can be having problems with the iSCSI session between the initiator and that the iSCSI initiator service is started. NOTE: The iSCSI service on the iSCSI interface - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 57
III Migrating FC or iSCSI Data Topics: • Migrating FC or iSCSI Data to the Storage System Migrating FC or iSCSI Data 57 - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 58
iSCSI data migration environment and limitations The following table outlines the environment for a manual copy migration and an application tool migration of FC or iSCSI data. Table 5. Migration environment Component Unity storage Requirement LUN sized to accommodate the data in the LUN that you - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 59
Migrate the data Steps 1. If any host or virtual machine applications are actively using the device (LUN) with the data being migrated, stop the applications gracefully. 2. Migrate the data with the method best suited for copying data from the device to the new storage system LUN. On a Windows host, - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 60
A General Tasks for Block Hosts Topics: • Modify Host LUN IDs Modify Host LUN IDs About this task You can now specify the Host LUN ID when you create or modify a LUN. If a Host LUN ID was not specified for the LUN at the time it was created, the system automatically assigns a Host LUN ID. You can - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 61
B Setting Up MPIO for a Windows Cluster Using a Storage System This appendix provides an end-to-end example of a two node Windows Server 2008 R2 cluster in an MPIO multi-path configuration with a storage system. Topics: • Configuration • Setting up cluster nodes (hosts) Configuration The - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 62
The following figure shows how these components are networked together. Figure 3. Network configuration Setting up cluster nodes (hosts) About this task For simplicity, this section shows only the setup for the single target iscsia. It includes the following tasks Steps 1. Configure the iSCSI - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 63
cluster (exhost1 and exhost2): Steps 1. Click Start and enter MPIO to launch the control panel applet. 2. Click the Discover Multi-Path tab, select Add support for iSCSI devices, and click Add. 3. Reboot the node when prompted to do so. Verify the MPIO settings on each cluster node About this task - Dell Unity XT 680 | EMC Unity Family Configuring Hosts to Access Fibre Channel F - Page 64
Source Portal Target Portal 11.222.123.123/xxxx 11.222.123.156/3260 ● In the MPIO tab, select the second connection, click Connections, and verify the following: Source Portal 11.222.123.224/yyyy Target Portal 11.222.224.231/3260 Present the storage devices to the Primary Node in the cluster
Dell EMC Unity™ Family Configuring Hosts to
Access Fibre Channel (FC) or iSCSI Storage
Version 5.1
Part Number: 302-002-568
June 2021
Rev. 05