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Re: Does XFS support the sync mount option?

To: xfs@xxxxxxxxxxx
Subject: Re: Does XFS support the sync mount option?
From: Michael Monnerie <michael.monnerie@xxxxxxxxxxxxxxxxxxx>
Date: Mon, 9 Feb 2009 09:34:59 +0100
In-reply-to: <20090206230502.GQ24173@disturbed>
Organization: it-management http://it-management.at
References: <884979c90902050643m78d2e0dbt85aa7f4369e243ef@xxxxxxxxxxxxxx> <20090206230502.GQ24173@disturbed>
User-agent: KMail/1.10.3 (Linux/2.6.27.13-ZMI; KDE/4.1.3; x86_64; ; )
On Samstag 07 Februar 2009 Dave Chinner wrote:
>>  I would be interested to know whether it is reasonable to use XFS in
> > the way I have outlined.
> No, it's not really a reasonable way to use any filesystem.

But what would be? Of course people will pull out an USB stick/drive 
wihtout unmounting, and it should be save anyway if
1) disk write cache=off and/or barrier enabled
2) they wait until the light of the USB stick/drive stops blinking after 
copying the file onto it. That usually means it's finished.

There will be logs about problems, because it's not a nice way to 
shutdown the filesystem, but it should be safe I'd say.

mfg zmi
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