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* xfs_repair question: "wrong" order of AG checks OK?
@ 2009-11-11 15:31 Michael Monnerie
  2009-11-11 22:17 ` Nathan Scott
  0 siblings, 1 reply; 5+ messages in thread
From: Michael Monnerie @ 2009-11-11 15:31 UTC (permalink / raw)
  To: linux-xfs

I did an xfs_repair now, and everything was OK. But strange was, in
Phase 4 the AGs were not checked in order:
AG 2
AG 1
AG 0
AG 3
AG 4
AG 5

Is that normal?

mfg zmi
-- 
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* Re: xfs_repair question: "wrong" order of AG checks OK?
  2009-11-11 15:31 xfs_repair question: "wrong" order of AG checks OK? Michael Monnerie
@ 2009-11-11 22:17 ` Nathan Scott
  2009-11-11 23:29   ` Michael Monnerie
  0 siblings, 1 reply; 5+ messages in thread
From: Nathan Scott @ 2009-11-11 22:17 UTC (permalink / raw)
  To: Michael Monnerie; +Cc: linux-xfs


----- "Michael Monnerie" <michael.monnerie@is.it-management.at> wrote:

> I did an xfs_repair now, and everything was OK. But strange was, in
> Phase 4 the AGs were not checked in order:
> AG 2
> AG 1
> AG 0
> AG 3
> AG 4
> AG 5
> 
> Is that normal?

Could be xfs_repair running with multiple threads in parallel?

cheers.

-- 
Nathan

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http://oss.sgi.com/mailman/listinfo/xfs

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: xfs_repair question: "wrong" order of AG checks OK?
  2009-11-11 22:17 ` Nathan Scott
@ 2009-11-11 23:29   ` Michael Monnerie
  2009-11-12  0:23     ` Nathan Scott
  0 siblings, 1 reply; 5+ messages in thread
From: Michael Monnerie @ 2009-11-11 23:29 UTC (permalink / raw)
  To: xfs

On Mittwoch 11 November 2009 Nathan Scott wrote:
> Could be xfs_repair running with multiple threads in parallel?

Would it ever do that? There's no performance advantage in that, as that 
operation is disk I/O bound, isn't it?

mfg zmi
-- 
// Michael Monnerie, Ing.BSc    -----      http://it-management.at
// Tel: 0660 / 415 65 31                      .network.your.ideas.
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^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: xfs_repair question: "wrong" order of AG checks OK?
  2009-11-11 23:29   ` Michael Monnerie
@ 2009-11-12  0:23     ` Nathan Scott
  2009-11-12  0:52       ` Michael Monnerie
  0 siblings, 1 reply; 5+ messages in thread
From: Nathan Scott @ 2009-11-12  0:23 UTC (permalink / raw)
  To: Michael Monnerie; +Cc: xfs


----- "Michael Monnerie" <michael.monnerie@is.it-management.at> wrote:

> On Mittwoch 11 November 2009 Nathan Scott wrote:
> > Could be xfs_repair running with multiple threads in parallel?
> 
> Would it ever do that? There's no performance advantage in that, as
> that operation is disk I/O bound, isn't it?

Be worth reading the paper here:

http://xfs.org/index.php/XFS_Papers_and_Documentation
   -> "Fixing XFS Filesystems Faster"

cheers.

-- 
Nathan

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^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: xfs_repair question: "wrong" order of AG checks OK?
  2009-11-12  0:23     ` Nathan Scott
@ 2009-11-12  0:52       ` Michael Monnerie
  0 siblings, 0 replies; 5+ messages in thread
From: Michael Monnerie @ 2009-11-12  0:52 UTC (permalink / raw)
  To: xfs

On Donnerstag 12 November 2009 Nathan Scott wrote:
> http://xfs.org/index.php/XFS_Papers_and_Documentation
>    -> "Fixing XFS Filesystems Faster"

Quite a fun to read, especially the comparison with ext3.
Thanks for the link.

mfg zmi
-- 
// Michael Monnerie, Ing.BSc    -----      http://it-management.at
// Tel: 0660 / 415 65 31                      .network.your.ideas.
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end of thread, other threads:[~2009-11-12  0:51 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2009-11-11 15:31 xfs_repair question: "wrong" order of AG checks OK? Michael Monnerie
2009-11-11 22:17 ` Nathan Scott
2009-11-11 23:29   ` Michael Monnerie
2009-11-12  0:23     ` Nathan Scott
2009-11-12  0:52       ` Michael Monnerie

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