IBM XIV Storage System Copy Services and Migration

not presented to the XIV. Check your non-XIV storage device documentation for how todo this.Note: Certain examples shown in this chapter are from a DS4000 active/passive migrationwith each DS4000 controller defined independently as a target to the XIV Storage System.If you define a DS4000 controller as a target do not define the alternate controller as asecond port on the first target. Doing so causes unexpected issues such as migrationfailure, preferred path errors on the DS4000, or very slow migration progress.7.3 Data migration stepsThe high-level steps required when migrating a volume from a non-XIV system to the IBM XIVStorage System are:1. Initial connection setup:– Zone or cable the XIV to the non-XIV storage device.– Define XIV to a non-XIV storage device (as a host).– Define a non-XIV storage device to XIV (as a migration device).2. Define the host being migrated to the XIV (using WWPNs).3. Create and activate a data migration volume on XIV.– Perform pre-migration tasks for the host being migrated:• Back up your data.• Shut down your host or application or unmount the file system.• Zone host to XIV.• Update host drivers.– Define and test the data migration volume.• On non-XIV storage, map volumes away from host and map them instead to XIV.• On XIV, create data migration and test it.4. Activate data migration.– On XIV, activate data migration.– On XIV, map volumes to host.– Bring the host online and detect volumes.5. Complete the data migration on XIV.– On XIV, monitor the migration.– On XIV, delete the migration.Each step is further explained in the sections that follow.7.3.1 Initial connection setupFor the initial connection setup, start by zoning or cabling XIV to the system being migrated.190 IBM XIV Storage System: Copy Services and Migration