If you are using SSD's in raid i would suggest underprovisioning. Unless
you raid card or raid software supports trim. even still it is a good idea
to extend drive life.

On Fri, Oct 15, 2021 at 9:23 PM Michael Butash via PLUG-discuss <
plug-discuss@lists.phxlinux.org> wrote:

> Can be done?  Sure.  Should be done?  Maybe...
>
> I've used ssd's since they've been around, super speed boost for any
> desktop really, but I'd run them typically in raid1, and for the first few
> years they'd reliably die, one disk or another around the 6mo mark.  I
> didn't do trim, as it defeats luks encryption, and often simply doesn't
> work otherwise with various filesystem layers (mdraid, luks, zfs, etc), and
> well yeah, they all died horrible deaths.  Not since Samsung introduced
> wear-leveling in their SSD architectures did the problem mostly go away,
> and I've begun to use Samsung SSD/M.2 (even sd cards) exclusively for this,
> and have not lost a disk since.
>
> Not sure how commonly this is used in other vendors, but something if ever
> doing raid or other enterprise-y functions, something to look for.
>
> -mb
>
>
> On Fri, Oct 15, 2021 at 10:23 AM Michael via PLUG-discuss <
> plug-discuss@lists.phxlinux.org> wrote:
>
>> Can raid5 be done on ssd?
>>
>> --
>> :-)~MIKE~(-:
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