Pool auto expansion: specifications and requirements
The following table lists the specifications and requirements for pools for which the pool auto expansion function (also called the automatically adding pool volumes function) is enabled.
| Item | Requirement |
|
Target pool |
A pool comprised of pool volumes assigned to accelerated compression-enabled parity groups. |
|
Pool volumes to be added |
The system adds LDEVs that are created in a physical area and extended area of an accelerated compression-enabled parity group. LDEV IDs are automatically assigned in a descending order in a resource group to which the initial pool volumes belong. |
|
Capacity of pool volume to be added |
The smallest of one of the following capacities is added:
|
|
Timing for adding pool volumes |
The system automatically adds pool volumes if the accelerated compression-enabled parity group meets the following condition: Logical-free-space < Physical-free-space + 2.99 TB |
|
Pool capacity monitoring |
The system monitors pools every 10 seconds. |