https://bugzilla.kernel.org/show_bug.cgi?id=172841
Bug ID: 172841
Summary: aacraid does not support TRIM in Raw (Pass Through)
devices
Product: SCSI Drivers
Version: 2.5
Kernel Version: 4.7.4-1.el7.elrepo.x86_64
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: DC395X
Assignee: [email protected]
Reporter: [email protected]
Regression: No
Created attachment 239601
--> https://bugzilla.kernel.org/attachment.cgi?id=239601&action=edit
AACRAID get config 1
Have SW raid 10. 8 x Intel SSD
Can't do fstrim.
mount -o discard does not add discard flag to mount point
[root@nas ~]# fstrim -v /mnt/SSD/
fstrim: /mnt/SSD/: the discard operation is not supported
[root@nas ~]# hdparm -I /dev/sdm | grep -i trim
* Data Set Management TRIM supported (limit 1 block)
* Deterministic read data after TRIM
[root@nas ~]# mount | grep SSD
/dev/md127 on /mnt/SSD type xfs
(rw,relatime,attr2,inode64,sunit=1024,swidth=4096,noquota)
[root@nas ~]# cat /proc/mdstat
Personalities : [raid10]
md127 : active raid10 sdp1[0] sdr1[7] sdn1[6] sdm1[5] sdk1[4] sdl1[3] sdq1[2]
sdo1[1]
937195520 blocks super 1.2 512K chunks 2 near-copies [8/8] [UUUUUUUU]
bitmap: 7/7 pages [28KB], 65536KB chunk
unused devices: <none>
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