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Re: trying to avoid a lengthy quotacheck by deleting all quota data

Subject: Re: trying to avoid a lengthy quotacheck by deleting all quota data
From: Harry Percival <harry@xxxxxxxxxxxxxxxxxx>
Date: Wed, 25 Mar 2015 12:34:00 +0000
Cc: xfs@xxxxxxxxxxx
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <20150306211136.GB13958@dastard>
References: <54EF1A8F.7030505@xxxxxxxxxxxxxxxxxx> <54F856E7.10006@xxxxxxxxxxxxxxxxxx> <54F87BF3.3000405@xxxxxxxxxxx> <54F88CEC.4030009@xxxxxxxxxxxxxxxxxx> <54F89201.60805@xxxxxxxxxxx> <54F893AF.2070406@xxxxxxxxxxxxxxxxxx> <54F895FA.4050205@xxxxxxxxxxx> <54F89B47.4010702@xxxxxxxxxxxxxxxxxx> <54F8B7D6.2000501@xxxxxxxxxxx> <54F98F20.9000208@xxxxxxxxxxxxxxxxxx> <20150306211136.GB13958@dastard>
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We've written up a sort of post-mortem blog post describing the whole saga:


We've tried hard to avoid kicking off some kind of filesystem flamewar while describing the whys and wherefores of our move from xfs to ext4, but if you feel we've misrepresented anything, do let us know, I'm sure we can adjust the post.

Thanks again to everyone for your help debugging this stuff, and for a filesystem which served us excellently for many years.

Harry + the team.

On 06/03/15 21:11, Dave Chinner wrote:
On Fri, Mar 06, 2015 at 11:27:28AM +0000, Harry Percival wrote:
Glad we managed to nail down a probable culprit!   Here's hoping
Debian and Ubuntu pull in a new kernel :)

In other news, any advice on running this


command as a way of estimating how long a quotacheck will take?
It will give you an idea - quotacheck uses bulkstat, too.

Would it still be a useful estimator?  Do you think it would
significantly affect the performance of a disk that's under fairly
heavy use?
Of course. Bulkstat drives the disks as hard as they will go.



Harry Percival

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