I also think I re-started this thread. Mea culpa.

The original comment from me was that I wasn't certain that the bug I
tripped over last year this time (a single-LUN zpool is declared corrupt
if the underlying LUN goes away, usually due to SAN issues) was fixed. I
did see that the host reset cycle issue with this was fixed, but I was
wondering if we're still concerned with "phantom" unrecoverable zpool
corruption when a quiet single-LUN zpool loses it's vdev.

Am I correct in hearing that we've fixed this issue? Or not?

-Erik



On Fri, 2009-05-08 at 12:41 -0700, Richard Elling wrote:
> Bob Friesenhahn wrote:
> > On Fri, 8 May 2009, Miles Nordin wrote:
> >>
> >> It's frustrating to keep going in circles.  Also I think advising
> >> people they no longer need to avoid single-LUN SAN pools is a bad
> >> idea.  And blaming the SAN problems in silent bit-flips when it looks
> >> pretty clearly that they actually lie elsewhere is dishonest and
> >> contributes to a widening credibility gap.
> >
> > Miles,
> >
> > Maybe I was not paying attention or maybe my SPAM filter is 
> > over-aggressive since I seem to have lost track of the discussion. 
> > Could you remind us of the problem you are trying to solve?  Has 
> > anyone else but yourself encountered it?
> 
> If I may speak for Miles, he's pining for the forensics tool to replace
> the current, manual method for attempting to recover a borked pool
> by using old metadata.  He's also concerned that people trust their
> SAN too much.  I agree, it is best if ZFS can manage data redundancy.
> You will find similar recommendations in the appropriate docs.
>  -- richard
> 
> _______________________________________________
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-- 
Erik Trimble
Java System Support
Mailstop:  usca22-123
Phone:  x17195
Santa Clara, CA
Timezone: US/Pacific (GMT-0800)

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