CACHE
CMA - SSD's are located underneath the board, once the full 64 GB's of cache are installed there needs to be a second SSD drive installed, the 64GB SSD drives can not store 64GB's of memory.
CMA - cover needs to be removed to connect a cable behind the covers on all boards when doing initial setup. SSD and batteries on CHA's can be replaced under normal operations without any effect on performance.
CMA- No maintenance procedure for the DIMM, if one of the DIMM's are broken or impaired then best practice is to replace the whole module group (pair). To replace the DIMM, select the board from the SVP, replace - then replace DIMM.
If one of the first two pairs of the cache boards are blocked then performance is dramatically decreased.
Minimum size of the Cache partition is 4GB.
table Type
from "Hitachi/VSP/Part Numbers"