From: Dave Chinner <david@fromorbit.com>
To: Rakesh Patel <patelrakeshcomp@gmail.com>
Cc: xfs@oss.sgi.com
Subject: Re: regarding journaling mode
Date: Tue, 7 Jul 2015 10:24:30 +1000 [thread overview]
Message-ID: <20150707002430.GV7943@dastard> (raw)
In-Reply-To: <CAMcfJ7vDCNo138qnUJ8O0ZDYxgh9k8rgFUoTN3mKcY-SiMWrzA@mail.gmail.com>
On Mon, Jul 06, 2015 at 11:38:32AM +0530, Rakesh Patel wrote:
> Hi,
>
> I come to know XFS is using writeback journaling mode.
Can you explain how you came to that conclusion?
> As per the
> journaling guide, writeback is unsafe which does not preserve data and
> metadata write synchronization.
What journalling guide would that be? Please quote your sources when
asking questions.
> I really want to know reason behind to choose writeback mode for journaling
> in XFS.
Metadata updates after data IO completion are used instead of
ordering data writeback operations through the journal.
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
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next prev parent reply other threads:[~2015-07-07 0:29 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-06 6:08 regarding journaling mode Rakesh Patel
2015-07-07 0:24 ` Dave Chinner [this message]
2015-07-07 2:51 ` rakesh patel
2015-07-09 2:43 ` rakesh patel
-- strict thread matches above, loose matches on Subject: below --
2015-07-09 4:48 Rakesh Patel
2015-07-09 8:46 ` Jan Kara
2015-07-09 11:47 ` Rakesh Patel
2015-07-09 13:32 ` Emmanuel Florac
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