From: Sam Vilain <sam@vilain.net>
To: "Theodore Ts'o" <tytso@mit.edu>
Cc: Xin Zhao <uszhaoxin@gmail.com>,
Arjan van de Ven <arjan@infradead.org>,
linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org
Subject: Re: question about possibility of data loss in Ext2/3 file system
Date: Mon, 27 Feb 2006 10:27:09 +1300 [thread overview]
Message-ID: <44021D2D.20105@vilain.net> (raw)
In-Reply-To: <20060224162957.GA22097@thunk.org>
Theodore Ts'o wrote:
>>I always liked Sun's approach to this in Online Disk Suite - journal at
>>the block device level rather than the FS / application level.
>>Something I haven't seen from the Linux md-utils or DM.
> You can do data block journalling in ext3. But the performance impact
> can be significant for some work loads. TNSFAAFL.
Sure, but on a large system with a big array, you just move the journal
to a seperate diskset. That can make a big speed improvement for those
types of update patterns where you care about always applying updates
sequentially, such as a filesystem or a database.
Sam.
next prev parent reply other threads:[~2006-02-26 21:27 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-22 21:56 question about possibility of data loss in Ext2/3 file system Xin Zhao
2006-02-22 22:00 ` Arjan van de Ven
2006-02-22 22:34 ` Xin Zhao
2006-02-22 23:07 ` Andreas Dilger
2006-02-23 4:58 ` Theodore Ts'o
2006-02-23 19:46 ` Sam Vilain
2006-02-24 16:29 ` Theodore Ts'o
2006-02-26 21:27 ` Sam Vilain [this message]
2006-02-27 7:38 ` Xin Zhao
2006-02-28 16:56 ` Phillip Susi
2006-02-23 12:52 ` linux-os (Dick Johnson)
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