Deduplication system data volume specifications and requirements
The following table lists the requirements for the deduplication system data volume (fingerprint).
| Item | Description |
| Volume type | DP-VOL (V-VOL). When DP-VOLs whose capacity saving setting is 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 |
|
| Cache management devices |
|
| Path definition | Not available. |
| LDEV format | Not available. |
The following table lists the requirements for the deduplication system data volume (data store).
| Item | Description |
| Volume type | DP-VOL (V-VOL). When DP-VOLs whose capacity saving setting is Deduplication and Compression are created, the deduplication system data volumes (data store) are automatically created. |
| Emulation type | OPEN-V |
| Number per pool | 4 deduplication system data volumes (data store) are associated with a pool. |
| Volume capacity |
From 5.98TB to 256 TB 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 with 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 | Not available. |
| LDEV format |
Available. However, the LDEV format operation can be performed for LDEVs that are initialized of the duplicated data in a pool. |
The following table lists the maximum capacity of deduplication system data volumes (data store) for a pool and a storage system.
| 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 pool (PB) |
| Virtual Storage Platform G350
Virtual Storage Platform F350 | Base |
Smaller capacity of the following:
| 0.0725 |
| Extension 1 |
Smaller capacity of the following:
| 0.4 | |
| Extension 2 |
Smaller capacity of the following:
| 1.1 | |
| Extension 3 | Not available | Not available | |
| Virtual Storage Platform G370
Virtual Storage Platform F370 | Base |
Smaller capacity of the following:
| 0.4 |
| Extension 1 |
Smaller capacity of the following:
| 1.1 | |
| Extension 2 |
Smaller capacity of the following:
| 2.0125 | |
| Extension 3 | Not available | Not available | |
| Virtual Storage Platform G700
Virtual Storage Platform F700 | Base |
Smaller capacity of the following:
| 0.4 |
| Extension 1 |
Smaller capacity of the following:
| 1.1 | |
| Extension 2 |
Smaller capacity of the following:
| 2.0125 | |
| Extension 3 |
Smaller capacity of the following:
| 3.125 | |
| Virtual Storage Platform G900
Virtual Storage Platform F900 | 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 |