Preparing storage resources for migration

Nondisruptive Migration User Guide

Part Number

Before you can begin the migration, you must prepare the storage resources and create a migration project.

  • Install the nondisruptive migration license on the target storage system.
  • Create a migration plan for each source and target storage system to be paired.
  • Register the target storage system in HCS.
  1. On the Mobility tab, select Migration Projects.
  2. Expand the tree and select a target storage system.
  3. Select the target system under All Migration Projects. The Preparation screen includes steps that prompt you to perform the necessary tasks.
  4. Perform the tasks described in Step 1, including adding storage systems and hosts, and (if migrating existing copy pairs) creating and allocating a command device (Allocate Volumes). This includes the following:
    • Register a host (pair management server) that manages the configuration definition files in HCS, and refresh the storage system.
    • When the target storage system is VSP 5000 series, VSP G1000, VSP G1500, or VSP F1500, set the port for data migration.
    • Create the target storage system command device and allocate it to the pair management server.
    • Create the command device in the resource group (meta_resource) on the target storage system whose resource group ID is 0.
    • To connect the command device, use a port that is different from the one that manages the migration target volume that is used for nondisruptive migration.
    • Disable user authentication for the command device.
    • Change instances of HORCM_LDEVG to HORCM_LDEV. You cannot migrate configuration definition files in which HORCM_LDEVG is defined. The list of available configuration definition files will not include any configuration definition files in which HORCM_LDEVG is defined.
  5. Start the Create Migration Project wizard (Step 2).
  6. Create the necessary DP pools (Step 3).
  7. Select the source storage system from the Migration Projects table at the bottom of the screen (Step 4) and proceed with the migration.