I am running Debian 8 on a Dell PowerEdge R420.
The OS is installed onto a INTEL SSDSC2BA800G3T SSD running the 5DV1DL03 firmware.
The SSD is connected through a PERC - H310 RAID controller (fw 2.121.14-3811). There is no RAID configured, the SSD is a standalone drive.
The root partition is EXT4 and, after I've configured fstab to have it running with noatime and discard, I've tried running fstrim -v / on the root partition, but only got the following message:
# fstrim -v / fstrim: /: the discard operation is not supported
The SSD does support trim, so I am wondering if the issue isn't with the RAID controller:
# hdparm -I /dev/sda | grep TRIM * Data Set Management TRIM supported (limit 6 blocks) * Deterministic read ZEROs after TRIM
Is there any way I could go around this and have TRIM enabled on this SSD?