Pool auto expansion function
When the free space runs low in a pool comprised of pool volumes belonging to accelerated compression-enabled parity groups, the pool auto expansion function automatically adds new pool volumes to the pool and creates new pool volumes as needed. The pool auto expansion function automatically creates and adds pool volumes to a pool based on the data usage rate of the data written by the hosts. Therefore, when the pool auto expansion function is enabled, you do not have to plan a configuration definition for pool volumes related to the compression rates.
The pool auto expansion function uses physical capacity to manage pool capacity. For pools for which the pool auto expansion function enabled, refer to the physical capacity to check the total capacity and the used capacity of the pool.
For VSP G/F350, G/F370, G/F700, G/F900, the pool auto expansion function is automatically enabled on a pool when pool volumes from an accelerated compression-enabled parity group are used in the pool. If you want to disable the pool auto expansion function on a pool, you must use Command Control Interface. For details about the CCI commands, see the Command Control Interface Command Reference.