HP 3PAR Online Import for EMC Storage Data Migration Guide

Bring the Windows Host Back Online
1. Once the import has started for all volumes, bring the Windows host that was shutdown back
online.
NOTE: In order to verify the import has started for all volumes, issue the
showmigrationdetails command and confirm TASK_IDs are available for all volumes.
Example 10 Unsafe to bring the host online
>showmigrationdetails -migrationid 1395864499741
SOURCE_VOLUME DESTINATION_VOLUME TASK_ID PROGRESS
Test_Lun_01 Test_Lun_01 |unknown| 0%
Example 11 Safe to bring the host online:
>showmigrationdetails -migrationid 1395864499741
SOURCE_VOLUME DESTINATION_VOLUME TASK_ID PROGRESS
Test_Lun_01 Test_Lun_01 6134 0%
2. Check the disk status. If the disk status shows offline, bring the disk back online.
3. All applications and services can now be restarted and the host may resume normal operations
(including first restarting the cluster if applicable).
Migrating a Linux Host
The minimally disruptive migration (MDM) type is used when migrating a Linux host with an source
EMC Storage system. The host must be shutdown briefly during an MDM. Host I/O is interrupted
only during the time that the host is shutdown.
Required Information
Source Storage System:
• WWN of the source EMC Storage system where LUNs are being migrated.
• A list of one or more volume name(s) that are being migrated. All volumes must be in the same
Storage Group or different storage groups with identical LUN membership.
OR
Name of the host associated with volumes to be migrated. Host and volumes must be in a
supported storage group configuration on the source EMC Storage system. Refer to“Supported
and Unsupported Migrations by HP 3PAR Online Import Utility for EMC Storage” (page 17)
for details.
Destination Storage System:
• Provisioning type for the volumes being created on the destination storage system (Thin or
Full).
• The friendly name of the CPG on the destination storage system where the volumes are being
migrated to.
34 Performing the Data Migration