Hitachi Dynamic Tiering ( HDT Pool)
Team, I have 60 TB of HDT( Dynamic Tiering) license , and i want to create a pool with 2 TIERS( FMD and SAS).
PGs are created with RAID 62+2P for SAS and 3D+1P for FMD drives.
1) Is there any way how can i calculate how many FMDs should i use for HDT Pool ?
2) Is there any minimum or maximum number of FMDs ( Tier 1) which has to be used for HDT pool creation ? What if i just allocate 1 PG for FMD & remaining all PG for SAS for HDT Pool creation , will that work ?
3) How will i determine that i need more license capacity for HDT or the existing licensed capacity is not used optimally?