On 01/02/2014 07:55 PM, Theodore Ts'o wrote:
> On Thu, Jan 02, 2014 at 10:49:56AM +0530, Ritesh Khadgaray wrote:
>
> However, in your case, if discard commands are causing on-disk
> corruption, I'm not sure I can even in good conscience recommend using
> fstrim.
>
>> Device Model: Crucial_CT960M500SSD1
>> Serial Number: 1335094BE7CA
>> LU WWN Device Id: 5 00a075 1094be7ca
>> Firmware Version: MU03
>
If this is not a production system you can try to switch to another
provisioning mode. I.e. Intel510 drives cause data corruption with
write-same-10, but unmap works fine.
cat /sys/class/scsi_disk/H\:C\:I\:L/provisioning_mode
and
echo -n {writesame_16,unmap} > /sys/class/scsi_disk/H\:C\:I\:L/provisioning_mode
(lsscsi can provide the H:C:I:L tuplet)
Cheers,
Bernd
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