Hi,
We recently bought two DL380 Gen9's (768345-425) which include the HP Smart Array P440ar Controller and HP Smart Storage Battery. Yesterday I was adding SSD's to the machines and noticed in Linux that the controller does not support TRIM (in HW RAID mode, I'm using RAID1).
Three questions:
1) Am I correct that in RAID mode this controller does not support TRIM/DISCARD?
2) If I instead use HBA mode instead of RAID (I will then use software raid, Linux MD) can I use TRIM?
3) In HBA mode, does the battery-backed 2Gb write cache work? Or is this part completely bypassed in HBA mode?
Thanks in advance.