Re: btrfs stability

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On Fri, Jan 25, 2013 at 01:05:14PM -0700, Andrew McNabb wrote:
> I tried creating a multi-device btrfs filesystem for the first time (on
> Fedora 18 with 3.7.2-204.fc18.x86_64), and I ran into some problems.  I
> had heard that btrfs is now reasonably stable, and though I expected to
> possibly see a problem here or there, I was a little surprised at just
> how many problems I encountered in such a short period of time.  I now
> have about a thousand error messages in my kernel logs related to
> several different problems.  Is this roughly the expected level of
> stability for btrfs with multiple devices, or am I just particularly
> lucky? :)
> 
> Am I correct in assuming that I'll need to switch to md for a few months
> and try btrfs again later, or are there known problems in the specific
> kernel I'm running that I could avoid by trying a different version?
> 
> For the sake of being specific, I'll detail a few of the problems I've
> hit:
> 
> These two may have been caused by a possibly faulty disk (I'm still
> trying to determine whether it was faulty or whether the bug was purely
> in btrfs):
> 
> https://bugzilla.redhat.com/show_bug.cgi?id=903794
> https://bugzilla.redhat.com/show_bug.cgi?id=904143
> 
> This one was triggered when I tried to remove a possibly faulty disk:
> 
> https://bugzilla.redhat.com/show_bug.cgi?id=904197

Actually for this one, how did you remove the disk?  Did you just yank it out
while the box was running?  Did you mount -o degraded and then delete the device
and then remove it?  How exactly did you get to this situation.  Thanks,

Josef
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