[CentOS] To discard... or not to discard...
Paul Heinlein
heinlein at madboa.com
Wed Dec 4 18:58:19 UTC 2013
On Wed, 4 Dec 2013, Akemi Yagi wrote:
> In addition to the RH doc referenced by LF, I found this web page useful:
>
> http://blog.neutrino.es/2013/howto-properly-activate-trim-for-your-ssd-on-linux-fstrim-lvm-and-dmcrypt/
>
> Quote: [....]
>
> Instead, what I recommend is to run a script periodically to tell
> the SSD which blocks are free with the command fstrim. Doing this
> operation daily or weekly is more than enough. This way we do not
> lose any performance due to TRIM when deleting files and we
> periodically keep informed the SSD about the free blocks."
I was pondering dropping in a cron job that invokes fstrim on servers
with SSDs, esp. now that 6.5 supports TRIM on MD RAID-1 devices. It
appears that making it a weekly job will do the trick.
--
Paul Heinlein
heinlein at madboa.com
45°38' N, 122°6' W
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