Requirements for the deduplication system data volume (fingerprint)
| Item | Description |
|---|---|
| Volume type | Virtual volume When V-VOLs using deduplication and compression are created, the deduplication system data volumes are automatically created. |
| Number per pool |
24 deduplication system data volumes (fingerprint) are associated with a pool. 4 deduplication system data volumes (fingerprint) are associated with a pool. |
| Volume capacity |
1.7 TB 1.97 TB for one volume |
| Cache management devices |
1 deduplication system data volume (fingerprint) uses 1 cache management device. 1 deduplication system data volume (fingerprint) uses 4 cache management devices. |
| Path definition | Cannot be defined. |
| LDEV format | Cannot be performed. |
| LDEV deletion | See the restrictions that apply when deleting a deduplication system data volume in V-VOL deletion. |
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 5.98 TB to 256 TB The DSD-VOL capacity has no impact on the V-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 pool capacity. 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 pool 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. Number of cache management devices that are used for 1 deduplication system data volume is from 4 to 30. |
| Path definition | Cannot be defined. |
| LDEV format | Can be performed for LDEVs that are initialized of the duplicated data in a pool. |
| LDEV deletion | See the restrictions that apply when deleting a deduplication system data volume in V-VOL deletion. |
This table lists the maximum capacity of deduplication system data volumes (data store) for a pool and a storage system.
| 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 storage system (PB) |
|---|---|---|
| Base | Smaller capacity of the following:
|
1.1 |
| Extension 1 | Smaller capacity of the following:
|
2.0125 |
| Extension 2 | Smaller capacity of the following:
|
3.125 |
| Extension 3 | Smaller capacity of the following:
|
4.15 |