Enable a daily SSD TRIM operation for Ubuntu 12.04+.

README.md

SSD TRIM support for Ubuntu 12.04+

Steps to add a daily SSD TRIM task to your Ubuntu system (tested with 12.04+) which will run via anacron with logging of the trim process to /var/log/fstrimall.log.

Note: if you have previously enabled TRIM support for your mounted drive(s) using the discard option within /etc/fstab you will want to remove this option and re-mount your drives first ($ mount -a).

• Install scripts

  $ sudo wget \
  	https://gist.github.com/magnetikonline/8190599/raw/fstrimall.sh \
  	-O /etc/cron.daily/fstrimall
  $ sudo chmod a+x /etc/cron.daily/fstrimall
  $ sudo wget \
  	https://gist.github.com/magnetikonline/8190599/raw/fstrimall.logrotate \
  	-O /etc/logrotate.d/fstrimall

• Optional: Edit SSD_MOUNT_POINTS section of /etc/cron.daily/fstrimall, adding additional mount points for each individual SSD drive space separated - for example:

  SSD_MOUNT_POINTS="/ /myseconddrive /mythirddrive"

• All done! Shortly after system boot, anacron should fire off the /etc/cron.daily/fstrimall task and TRIM each mounted SSD drive defined in SSD_MOUNT_POINTS. Results will be logged to /var/log/fstrimall. This log will be rotated weekly via the /etc/logrotate.d/fstrimall logrotate task.

fstrimall.logrotate

/var/log/fstrimall.log {
	compress
	delaycompress
	missingok
	notifempty
}

fstrimall.sh

#!/bin/sh

SSD_MOUNT_POINTS="/"
LOG_FILE="/var/log/fstrimall.log"


echo "*** Start: $(date -R) ***" >> $LOG_FILE

for mountPoint in $SSD_MOUNT_POINTS
do
	fstrim -v $mountPoint >> $LOG_FILE
done

echo "*** Finish: $(date -R) ***" >> $LOG_FILE