Re: fstrim and SSDs and cron; was: Re: cron-service

[Thompson, David]

On Tue, May 17, 2016 at 5:24 PM, Ludovic Courtès <address@hidden> wrote:
> Hi!
>
> Danny Milosavljevic <address@hidden> skribis:
>
>> I can confirm that this works!
>
> Great, thanks for testing.
>
>> I'm using it to regularily call fstrim (one has to regularily call
>> fstrim on SSDs) so the mcron behaviour of, if an appointment was
>> missed, doing it at the first next availability is good for
>> regularity. The man page says that trimming once a week is good.
>>
>> Longer term maybe there should be a way of specifying that a
>> filesystem should be trimmed in a "file-system" specification. Note
>> that fstrim expects the filesystem to be mounted for it to work.
>
> I had never thought of it, but maybe it’s a good idea.  How do other
> distros handle it?

FWIW, I use SSDs in all my computers and have never run fstrim.  Feels
a lot like the "defragment your hard drive" days.

- Dave