HP StorageWorks XP10000 Disk Array - Manual (Page 57)

Performing a Migration 57
7 Performing a Migration
This chapter describes performing a migration, which includes creating a migration task and then executing it.
• About Migration Tasks (section 7-1 )
• Migration Task Operations (section 7-2 )
• Steps for Performing a Migration (section 7-3 )
For more information on searching for a migration task, viewing detailed information about a migration task,
and executing or deleting a migration task, see
10 .
7-1 About Migration Tasks
A migration task is the migration (movement of data from the migration source volume to the migration target
volume) of each volume within a migration group.
A migration task is created by specifying the correspondence between the migration source volumes within the
migration group and the migration target volumes that match the volume search result for that storage tier, as
well as their options.
There is no restriction to the number of migration tasks you can create within the same storage domain.
When a storage domain that contains the operation-target storage tiers is being refreshed, you cannot operate
those storage tiers.
7-1-1 Attributes of Migration Tasks
Migration tasks have the following attributes. You can check the attributes in the detailed information for a
migration task.
• Task ID and a description statement about the corresponding migration task.
• A user who registers the migration task, and a user group of the user.
• Status of the migration task.
• Creation time, execution request time, and end time.
• Storage domain, migration group, and migration target storage tier.
• Total capacity of the data to be migrated.
• Progress of migration (including the progress of each volume).
When you create a migration task, it is given a task ID (TK########). The character string ######## consists
of the time that the migration task was created and the serial number. The value ######## is obtained by
adding the time and serial number, and then converting the result to base 36.
7-1-2 Status of Migration Tasks
A migration task can be in any of a number of statuses. By specifying the task ID, date, or status, you can find
out whether the corresponding migration task has finished (the status of the migration task is Success,
Failure
, or Cancel) and its current status.
On a Web client, the status of a migration task is displayed only by an icon, or by an icon and the status
enclosed in parenthesis. If the status is Failure, it might be displayed by an icon, and
Failure.MigrationFailure
or Failure.DataErasureFailure. For more information about icon
meanings and sub-statuses, see GUI Help.
On a CLI client, you can use the GetTasks command to check the status of a migration task. For more
information, refer to the HP StorageWorks XP Tiered Storage Manager CLI Reference Guide.
Table 7-1 lists the migration task status messages displayed by a CLI client and by a Web client icon.
Table 7-1 Migration Task Status Messages
Status Displayed by a CLI client Status Displayed by a Web client
(contents displayed in parenthesis)
Standby Standby
Active.WaitingMigration Active
Active.Migrating
Active.WaitingDataErasure
Active.DataErasing
Creating a M
igration Gro
u
p