Deduplication system data volume requirements

When you enable deduplication on a pool, the deduplication system data volume for the pool is created. The deduplication system data volume is used exclusively by the storage system to manage the data deduplication function. The deduplication system data volume for a pool is deleted automatically when you disable the Capacity Saving setting for the pool or delete the pool.

The following table lists the requirements for the deduplication system data volume.

Items

Requirements

Volume type

DP-VOL (V-VOL)

Emulation type

OPEN-V

Number per pool

One deduplication system data volume per pool (fixed)

Volume capacity

40 TB (fixed)

Path definition

Not available

LDEV format

Not available

Resource group

A deduplication system data volume and its associated pool volumes must be in the same resource group.

Cache management devices

Each deduplication system data volume uses 14 cache management devices.