PERC H310 TRIM Support?

Question

I am running Debian 8 on an Dell PowerEdge R420. The OS is installed onto a INTEL SSDSC2BA800G3T SSD with firmware 5DV1DL03. The LVM is not configured, and the encryption is not enabled either.  The SSD is connected to a PERC H310 Mini (MegaRAID SAS 2008), and is in passthrough mode (meaning no RAID whatsoever). The firmware version of the controller is 2.121.14-3811. I have tried configuring TRIM on this machine, but when I am running fstrim, it is telling me that the operation is not supported: # fstrim -v / fstrim: /: the discard operation is not supported The SSD supports TRIM: # hdparm -I /dev/sda | grep TRIM * Data Set Management TRIM supported (limit 6 blocks) * Deterministic read ZEROs after TRIM Can you tell me if this controller is able to pass-through the TRIM commands to the SSD? Are there any other additional settings that need to be set?

theflash1932 · Answer

Maybe the Dell guys can jump in to confirm one way or the other, but I believe only the latest PERC's support TRIM.

Sorin Sbarnea · Answer

Is there any workaround for enabling TRIM usage on these configurations.

My impression is that these configurations are less than two years old, which makes really weird of not being able to do a real passthrough one them.

xjxtnt · Answer

LSI KB can answer the question:

http://www.avagotech.com/support/knowledgebase/1211161496937/trim-and-sgunmap-support-for-lsi-hbas-and-raid-controllers&dskeyword=Trim&dsperpage=10&dscategory=MegaRAID&tab=search

Randy B-Readonl · Answer

The Dell website does not have IT firmware for the h310. Here is a good discussion of cross flashing the h310 to generic LSI firmware

PowerEdge HDD/SCSI/RAID

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