LDEV Name

Specify the LDEV name, using up to 32 characters.

• Prefix: Fixed character string.
• Initial Number: Initial number.

Specify the prefix characters and the initial number according to these examples.

Example:

• 1: Up to 9 numbers are added (1, 2, 3 ... 9).
• 08: Up to 92 numbers are added (08, 09, 10 ... 99).
• 23: Up to 77 numbers are added (23, 24, 25 ... 99).
• 098: Up to 902 numbers are added (098, 099, 100 ... 999).

Capacity Saving

Select the option for the capacity saving function.

• Compression: Select this option to use the compression function.
• Deduplication and Compression: Select this option to use the deduplication and compression functions. If Deduplication is disabled in the target pool, this option cannot be selected.
• Disabled: Select this option to disable the Capacity Saving function.

If any of the following conditions is satisfied, Disabled is set for Capacity Saving:

• Data Direct Mapping is enabled.
• The license for the capacity saving function is not installed.
• Multi-Tier Pool is enabled.
• There are not enough cache management devices.
• A journal volume for Universal Replicator is selected.

Full Allocation

Select Enable to allocate all pages of LDEVs on the current pool. The default is Disable. If LDEVs are satisfied of all following conditions, you can select Enable.

• All LDEVs are V-VOLs of Dynamic Provisioning.
• The sum of the mapped capacity and the reserved capacity is same or less than the depletion threshold.
• The specified pool is not in the shrink processing of the pool capacity.
• The status of LDEV is Normal.
• The data direct mapping attribute is disabled.

Tiering Policy

Specify the tiering policy for the LDEV. You can specify this function only for Dynamic Tiering V-VOLs.

New Page Assignment Tier

Specify the new page assignment tier you want to assign to the LDEV. Middle is set by default. You can select from High, Middle, or Low.

You can specify this function only for Dynamic Tiering V-VOLs.

Tier Relocation

Specify Enable or Disable for the performing of the tier relocation. You can specify this function only for Dynamic Tiering V-VOLs.

Relocation Priority

Specify the relocation priority assigned to the LDEV. You can set this function only for Dynamic Tiering V-VOLs with tier relocation enabled.

ALUA Mode

Select to Enable or Disable ALUA mode for global-active device pairs. For details, see the global-active device User Guide.