Best practices are incorporated when calculating the best pool sizes based on the media available in the storage system. When using the basic pool creation option, pool size is determined as follows:
- The software identifies all the parity groups of the same disk type, disk capacity, disk speed, RAID type and layout and determines the available capacity of the usable LDEVs. Only parity groups in the Available and Quick Formatting states are eligible for creating pools using the basic method.
- The software then uses combinations of these parity
groups where four or more parity groups of the Bronze, Silver, or Gold tiers can be
added together, or there is a parity group of the Platinum or Diamond tier, to
compute various possible pool sizes that can be created for the combination of disk
type, disk capacity, disk speed, RAID type and layout. Note: If your parity groups do not meet these requirements, you must use the advanced method of pool creation.
- Based on the storage system model, the maximum pool size is determined.
- The software then displays the pools in increasing order of pool size.