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Re: ENOSPC at 90% with plenty of inodes

To: Dave Chinner <david@xxxxxxxxxxxxx>
Subject: Re: ENOSPC at 90% with plenty of inodes
From: Jan Derfinak <ja@xxxxxxxxxxxx>
Date: Tue, 12 Oct 2010 15:52:40 +0200
Cc: Stan Hoeppner <stan@xxxxxxxxxxxxxxxxx>, xfs@xxxxxxxxxxx
In-reply-to: <20101012102954.GQ4681@dastard>
References: <AANLkTinwnOm0V=9WwbXiUGFnyjCwT3GUHo0hiQahQNUV@xxxxxxxxxxxxxx> <20101008225146.GJ4681@dastard> <AANLkTikLyEuSoFRVwirKLws97Vemz4ScNHOqu2Jc5sWR@xxxxxxxxxxxxxx> <20101011223507.GB32255@dastard> <4CB3B964.40109@xxxxxxxxxxxxxxxxx> <20101012102954.GQ4681@dastard>
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Dave Chinner wrote:

>> If so, could/should the OP specify anything
>> during the mkfs.xfs reformat that may help alleviate or mitigate his
>> problem in the future?
> 
> No. These problems usually appear in filesystems that have run at
> greater than 85-90% full for extended periods of time without being
> emptied at all. Once you start to free up space, it naturally
> defragments itself, but if you never free up any significant amount
> of space in the filesytesm, this cannot occur and so fragmentation
> just keeps getting worse....

I'm curious if using noikeep mount option has any effect on free space
fragmentation?

jan

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