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Using Tiered Storage Manager 11

1 Using Tiered Storage Manager

This chapter explains the features of Tiered Storage Manager, describes the objects and timing associated with

migration (which is a main function of Tiered Storage manager), lists volume filter conditions, and documents

the procedure for refresh operations.

• Functions of Tiered Storage Manager (section

1-1 )

• Deciding When to Migrate Data (section

1-2 )

• How Migration Works (section

1-2-3 )

• Methods of Migration (section

1-4 )

• Required Components of Migration (section

1-5 )

• Users of Tiered Storage Manager (section 1-6 )

• Performing a Refresh Operation (section

1-7 )

• Volumes Used for Migration (section

1-8 )

1-1 Functions of Tiered Storage Manager

Tiered Storage Manager is designed to relocate (migrate) data from one volume on a storage subsystem to

another volume. You can migrate data simply by specifying the relocation destination. (Tiered Storage

Manager does not migrate data to a tape device.) See

Figure 1-1 for an illustration of the scope of data you can

migrate using Tiered Storage Manager.

Using Tiered Storage Manager offers the following advantages:

• You can migrate data without interrupting the current application.

• You can migrate data without being aware of the storage configuration.

• You can migrate multiple volumes at once.

• You can reduce the preparation time for a migration.

• You can use multiple storage subsystems as though they were a single storage subsystem and centrally

manage different types of storage environments, since Tiered Storage Manager uses the StorageWorks

XP12000/10000.

• You can migrate data in line with the concept of Data Lifecycle Management (DLCM) so that data used

frequently is stored in high-performance storage and data used less frequently is stored in low-

performance storage. See

Figure 1-2 for an illustration of migrating data according to DLCM.

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Hp StorageWorks XP10000 Disk Array Manuale Utente Pagina 11