[CentOS] To discard... or not to discard...
Cian Mc Govern
cian at cianmcgovern.com
Fri Dec 6 12:20:15 UTC 2013
I believe discard support is only available since kernel 3.1.
It'd be great if it was added to RHEL 6 - I'm using Fedora 18 on any
machines that require it in the meantime.
On 4 December 2013 21:59, Leon Fauster <leonfauster at googlemail.com> wrote:
> Am 04.12.2013 um 19:20 schrieb Akemi Yagi <amyagi at gmail.com>:
>> On Wed, Dec 4, 2013 at 9:20 AM, Leon Fauster <leonfauster at googlemail.com> wrote:
>>> Am 04.12.2013 um 17:08 schrieb John Doe <jdmls at yahoo.com>:
>>>> I just recently read a post about SSD triming (discard vs fstrim):
>>>> http://www.howtogeek.com/176978/ubuntu-doesnt-trim-ssds-by-default-why-not-and-how-to-enable-it-yourself/So far I used discard on all my SSDs.
>>>> Now I am wondering if it is really worth it to switch them all to a crontabed fstrim...
>>>> Anyone made the switch yet?
>>> "Red Hat recommends batch discard operations ..." (fstrim)
>> In addition to the RH doc referenced by LF, I found this web page useful:
> interesting article. it shows the passthrough of the discard option with
> dm-crypt involved. rhel seems to not provide such "dm-crypt/trim" support.
> "The only DM targets that do not support discards are dm-snapshot, dm-crypt, and dm-raid45."
> maybe with the next minor release?
> CentOS mailing list
> CentOS at centos.org
More information about the CentOS