[OpenIndiana-discuss] Zfs stability

[Dan Swartzendruber]

+1.  What the previous poster is missing is this: it's entirely possible for
sectors on a disk to go bad and if you haven't read them in awhile, you
might not notice.  Then, say, the other disk (in a mirror for example) dies
entirely.  You are dismayed to realize your redundant disk configuration has
lost data for you anyway. 

-----Original Message-----
From: Doug Hughes [mailto:doug at will.to] 
Sent: Friday, October 12, 2012 4:42 PM
To: Discussion list for OpenIndiana
Subject: Re: [OpenIndiana-discuss] Zfs stability

yes, you shoud do a scrub  and no, there isn't very much risk to this. This
will scan your disks for bits that have gone stale or the like. You should
do it. We do a scrub once per week.



On Fri, Oct 12, 2012 at 3:55 PM, Roel_D <openindiana at out-side.nl> wrote:

> Being on the list and reading all ZFS problem and question posts makes 
> me a little scared.
>
> I have 4 Sun X4140 servers running in the field for 4 years now and 
> they all have ZFS mirrors (2x HD). They are running Solaris 10 and 1 
> is running solaris 11. I also have some other servers running OI, also
with ZFS.
>
> The Solaris servers N E V E R had any ZFS scrub. I didn't even knew 
> such existed ;-)
>
> Since it all worked flawless for years now i am a huge Solaris/OI fan.
>
> But how stable are things nowaday? Does one need to do a scrub? Or a 
> resilver?
>
> How come i see so much ZFS trouble?
>
>
>
> Kind regards,
>
> The out-side
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