MSA 2040 SMU Reference Guide

Using the Replication Setup Wizard 129
• Suspending (page 134), resuming (page 134), or aborting (page 134) a replication
• "Exporting a replication image to a snapshot" (page 137)
• "Changing the primary volume for a replication set" (page 137)
• "Viewing replication properties, addresses, and images for a volume" (page 139)
• "Viewing information about a replication image" (page 141)
• "Viewing information about a remote primary or secondary volume" (page 140)
Using the Replication Setup Wizard
If the system is licensed to use remote replication, you can use the Replication Setup Wizard to prepare to replicate
an existing volume to another vdisk in the local system or to a remote system. Before using this wizard, read the
documentation and Resource Library guidelines for your product to learn about replication. Then plan the storage
systems, replication mode, and volumes you want to use for the replication.
The wizard guides you through the following steps. For each step you can view help by clicking the help icon in
the wizard panel. As you complete steps they are highlighted at the bottom of the panel. If you cancel the wizard at
any point, no changes are made.
• Select the primary volume, which is an existing volume or snapshot to replicate.
• Specify whether the replication mode will be local or remote. If the replication will be to a remote system that has
not already been added to the local system, you can add it. To do so, you must know the user name and
password of a user with the Manage role on that system and the system’s IP address.
• Specify the secondary volume. You can select an existing replication-prepared volume or specify to create a
volume in an existing vdisk that has sufficient available space for the replicated data.
• Confirm changes and apply them.
IMPORTANT: Before starting this procedure, if you intend to use CHAP to authenticate iSCSI login requests between
the local system and a remote system, do the following:
• Create a one-way CHAP record on each system. On the local system, the CHAP record must refer to the node
name of the remote system. On the remote system, the CHAP record must refer to the node name of the local
system. Both records must use the same secret. (Mutual CHAP is not used between storage systems. CHAP
records’ mutual fields can be set but are not used.) To create a CHAP record, see "Configuring CHAP" (page 78).
• After the CHAP records are created, enable CHAP on the primary system, the secondary system, or both. To
enable CHAP, see "Changing host interface settings" (page 46).
If both records don’t exist or don’t use the same secret, replication-set creation will fail.
Step 1: Starting the wizard
1. In the Configuration View panel, right-click the system and select Wizards > Replication Setup Wizard. The wizard
panel appears.
2. Click Next to continue.
Step 2: Selecting the primary volume
Select the volume whose data you want to replicate. If the volume has at least one snapshot, you can select a
snapshot to be the replication source.
To select the primary volume
1. Set the options:
• Select the vdisk that contains the volume to replicate. Only vdisks that contain at least one volume are listed
for selection.
• Select the volume to replicate. Only volumes that are not already part of a replication set are listed for
selection.
2. Click Next to continue.