SSD trimming

[Lennart Sorensen]

On Fri, May 31, 2013 at 03:04:49AM -0400, D. Hugh Redelmeier wrote:
> "trim" support is something added in recent years to support SSDs.
> 
> Why: It helps the SSD more efficiently pretend to be a normal hard disk.
> 
> How should we use it?
> 
> There is a "discard" mount option (for ext4 or BTRFS).  That seems to be 
> overkill.
> 
> Alternatively: run fstrim on each SSD filesystem once in a while (once a 
> day).
> 
> See 
> <http://www.webupd8.org/2013/01/enable-trim-on-ssd-solid-state-drives.html>
> 
> I welcome a better resource (I didn't look hard).
> 
> I wonder if there is some GUI setting to turn on a crontab entry to do 
> fstrim.

Almost certainly not.

Now distributions might start shipping with such a cron job by default
once SSDs become common enough.  After all running a cron job that simply
goes'is this an SSD (with trim support) or not and then doing the job
if it is seems reasonable.

-- 
Len Sorensen
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