Deduplication system data volume specifications and requirements

Provisioning Guide for VSP One Block
Version
10.2.x
Audience
anonymous
Part Number
MK-23VSP1B012-00

Requirements for the deduplication system data volume (fingerprint)

Item Description
Volume type Virtual volume

When DP-VOLs using deduplication and compression are created, the deduplication system data volumes are automatically created.

Number per pool

4 deduplication system data volumes (fingerprint) are associated with a pool.

Volume capacity

1.97 TB for one volume
Cache management devices

1 deduplication system data volume (fingerprint) uses 4 cache management devices.
Path definition Cannot be defined.
LDEV format Cannot be performed.

Requirements for the deduplication system data volume (data store)

Item Description
Volume type (Virtual volume) When V-VOLs using deduplication and compression are created, the deduplication system data volumes (data store) are automatically created.
Number per pool

4 deduplication system data volumes (data store) are associated with a pool.

Volume capacity

From 5.98TB to 256 TB

The DSD-VOL capacity has no impact on the DP-VOL capacity available to the host, which is described in the previous table.

The subsequent table describes the maximum capacity of deduplication system data volumes (data store) for a pool and a storage system.

The capacity size when the volumes are initially created is the same as the total capacity of pool volumes in a pool. When the pool operation starts, the total capacity of the 4 deduplication system data volumes (data store) automatically expands to the same size of the total pool volumes capacity. However, you can also manually expand capacities of these volumes.

Cache management devices

Number of cache management devices that are used for 1 deduplication system data volume is from 4 to 172.

Path definition Cannot be defined.
LDEV format Can be performed for LDEVs that are initialized of the duplicated data in a pool.

Maximum capacity of deduplication system data volumes (data store) for a pool and a storage system

VSP One B24

Added shared memories Maximum capacity of deduplication system data volumes (data store) for a pool (PB) Maximum capacity of deduplication system data volumes (data store) for a pool (PB)
Base Smaller capacity of the following:
  • 1.0
  • Total capacity of pool volumes in a pool
 1.1
Extension 1 Not available Not available
Extension 2 Not available Not available
Extension 3 Not available Not available

VSP One B26

Added shared memories Maximum capacity of deduplication system data volumes (data store) for a pool (PB) Maximum capacity of deduplication system data volumes (data store) for a pool (PB)
Base Smaller capacity of the following:
  • 1.0
  • Total capacity of pool volumes in a pool
 1.1
Extension 1 Smaller capacity of the following:
  • 1.0
  • Total capacity of pool volumes in a pool
 2.0125
Extension 2 Not available Not available
Extension 3 Not available Not available

VSP One B28

Added shared memories Maximum capacity of deduplication system data volumes (data store) for a pool (PB) Maximum capacity of deduplication system data volumes (data store) for a pool (PB)
Base Smaller capacity of the following:
  • 1.0
  • Total capacity of pool volumes in a pool
 1.1
Extension 1 Smaller capacity of the following:
  • 1.0
  • Total capacity of pool volumes in a pool
 2.0125
Extension 2 Smaller capacity of the following:
  • 1.0
  • Total capacity of pool volumes in a pool
 3.125
Extension 3 Not available Not available