HP EVA-to-3PAR Online Import Migration Guide (T5494-96606)

3 Performing the data migration
Data migration can be performed by selecting a host or a virtual disk. The sequence of tasks differs
depending on the Operating System of the hosts you are migrating.
Migrating a Windows host
The minimally disruptive migration process is used when migrating a Windows host. The host DSM
must be reconfigured to communicate with the destination 3PAR storage system, and the host must
be shut down briefly. Host I/O is interrupted only during the time it takes to reconfigure the host.
For information on migrating a Windows 2003 MSCS cluster, see “Migrating a Windows 2003
host with MSCS cluster” (page 17)
1. In Command View, select the Storage Systems point of view.
2. Select the HP EVA to 3PAR StoreServ Online Import tab.
3. In the left navigation pane, select a host.
You can select a host folder, an individual host, or a user defined host folder.
4. Click Add Migration.
The Add Migration from a Host Selection wizard runs.
5. Read the information on the Introduction screen, then click Next.
The Select explicit migration source screen is displayed.
6. Select the host that will be the source, then click Next.
The Confirm Explicit and Implicit Migration Sources screen is displayed.
TIP: If the number of objects included in the migration is too large, you can cancel the
migration at this point.
7. Check the implicit and explicit hosts and virtual disk selections to ensure they are ready for
migration, then click Next.
The Confirm Your Migration Destination screen is displayed.
NOTE: If any object selected for migration is not ready for data migration, the appropriate
status is displayed in the Migration OK? column, and the Next button is disabled. In this case,
click Export Selections to save the selections information to a file for troubleshooting. Then
click Cancel to stop the migration wizard. Using the saved selections information, correct the
problem and run the migration wizard again.
8. Ensure that the 3PAR Destination Storage System is ready for migration, then click Next.
The Configure Destination Volumes screen is displayed.
NOTE: If the Migration OK? status is not OK, the tooltip provides information on why the
migration cannot be performed until the necessary action is taken.
9. Set the Destination Virtual Volume Attributes.
a. Set the Configuration to Set individually.
b. Select the desired Destination Provisioning for the destination virtual volume.
c. Select the desired Destination Common Provisioning Group (CPG) for the destination
virtual volume.
d. To use these settings for all the virtual volumes, set the Configuration to Set all the same.
To use different settings for each volume, repeat the steps for each volume.
16 Performing the data migration