Declustered array naming

The user declustered arrays in a recovery group are named DA1, DA2, and so on.

The rules for determining the names given to a declustered array are governed by the size and rotation rate of the pdisks in the declustered array. NVMe and SSD disk devices have a rotation rate of 0, and HDD disk devices typically have rotation rates of 10500 or 7200. The largest size pdisks with the numerically largest rotation rate are placed in DA1. The next largest pdisks by size and rotation rate will go into DA2. If two pdisks are the same size but have different rotation rates, the numerically larger rotation rate will be assigned the first available declustered array number, and the smaller rotation rate will get the declustered array number after that.