Have an SSD? Windows Partition? Mounting it in Linux? TRIM?

inSilica · 31 Jan 2012 at 10:31

Are you enabling TRIM in fstab? for your windows partition?

I'm planning a small partition for windows.

Im wondering because I think TRIM on MS is not yet available over the *SCSI/SAS* controller, i.e. TRIM is supported but only in ATA.

Or have I got my facts wrong.

I'm contemplating grabbing a PCI-e SSD (i.e. RevoDrive) [RAID-0] which operates on a SCSI controller. From what I can see TRIM will operate on the UUID or device or what I mean to say at the partition level?

inSilica · 31 Jan 2012 at 12:36

Nevermind!

I was hoping to get the OCZ revodrive but their Linux drivers seem to be lacking. i.e. only works o n RHEL/Centos

SMN · 1 Feb 2012 at 08:48

TRIM should work on SAS, it just needs to be set to AHCI (FWIR). And then just set the "discard" flag on all ext3/ext4 partitions on that drive in /etc/fstab. Works a charm.

Subliminal Aura · 6 Feb 2012 at 23:48

Mai optimizations

/etc/fstab
UUID=whatever / ext4 discard,user_xattr,noatime,nodiratime 0 0

/etc/init.d/rc
#CONCURRENCY=none
CONCURRENCY=shell

/etc/default/grub or burg
GRUB_CMDLINE_LINUX_DEFAULT="elevator=deadline quiet splash"

More info on the scheduler
http://ubuntuforums.org/showthread.php?t=1464706

Swap
/proc/sys/vm/swappiness = 0