On 11/12/15 21:01, Alceu Rodrigues de Freitas Junior wrote:
> Hi there,
>
> How is the current status of SSD disks support by OpenBSD?
Work great. Always has.
> I did some research on Google about but didn't find any definitive
> answer. I did find some references about lacking of support for TRIM
(*grumble*)
> Is there any real risk (of reducing the durability of a SSD disk) by
> using FFS? I found references of setting partitions with noatime
> option, but that's all.
reducing compared to what?
(noatime is a huge performance gain. atime is a feature looking for a
need, I suspect).
I've got some mechanical disks that are over 15 years old in production
("Why?" "Because I shut down the older stuff"). I don't think you will
be seeing that with modern drives -- of any technology. Get used to it.
(same goes for the rest of the computer hw).
Cycle your disks through at a reasonable rate (i.e., put into
non-critical applications after three to five years or so), and you will
have nothing special to worry about. Same goes for mechanical disks.
By that time, the old drive will be small in storage, huge in size, slow
and probably of an obsolete interface and you won't worry about tossing it.
SSDs are just like mechanicals for administrators.
You must have a backup.
You must have a repair plan.
NOTHING is different here.
And if you deploy a lot of SSDs, you will probably find most of your
failures have nothing to do with write fatigue. Some models are good,
some are crap, you can't say which is which until after they are out of
production.
SSDs have a failure mode mechanicals don't. Mechanicals have a bunch of
failure modes SSDs don't. Both fail from other things more often than
the obvious things people like to fret about. If the fear of an SSD
failing causes you to manage your systems better, it's all good. If
failures aren't part of your system design, try again.
Nothing different here.
Nick.
