xfs
[Top] [All Lists]

Re: md raid1 passes barriers, but xfs doesn't use them?

To: linux-xfs@xxxxxxxxxxx
Subject: Re: md raid1 passes barriers, but xfs doesn't use them?
From: Martin Steigerwald <Martin@xxxxxxxxxxxx>
Date: Tue, 24 Jun 2008 16:25:17 +0200
Cc: Eric Sandeen <sandeen@xxxxxxxxxxx>
In-reply-to: <4860F7E4.2080106@xxxxxxxxxxx>
References: <48605A8E.9070903@xxxxxxxxxxx> <200806241131.12112.Martin@xxxxxxxxxxxx> <4860F7E4.2080106@xxxxxxxxxxx> (sfid-20080624_161808_555876_E63DCB9F)
Sender: xfs-bounce@xxxxxxxxxxx
User-agent: KMail/1.9.9
Am Dienstag 24 Juni 2008 schrieb Eric Sandeen:
> Martin Steigerwald wrote:
> > Hi Eric!

[...]

> > Did you test with ext3 too?
>
> This is xfs-specific; ext3 does not look for the queue ordered flag so
> won't have this problem on md raid1.
>
> > [1] http://bugzilla.kernel.org/show_bug.cgi?id=9554
>
> but that's for device-mapper, which has never supported barriers ....
> I'm talking about md raid1 here (not dm).

Thanks for the info. My misunderstanding - I always thought and I thought 
I even read it somewhere - that md was  a device mapper application.

Ciao,
-- 
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
GPG: 03B0 0D6C 0040 0710 4AFA  B82F 991B EAAC A599 84C7


<Prev in Thread] Current Thread [Next in Thread>