From: Joe Thornber <thornber@redhat.com>
To: device-mapper development <dm-devel@redhat.com>
Subject: Re: dm-cache caching network volume
Date: Tue, 9 Sep 2014 16:47:25 +0100 [thread overview]
Message-ID: <20140909154723.GB2967@debian> (raw)
In-Reply-To: <1371547972.6128.8.camel@expiron>
On Tue, Jun 18, 2013 at 11:32:52AM +0200, Étienne BERSAC wrote:
> Is it possible to have dm-cache "bufferize" blocks for network
> failures ?
dm-cache is a slow moving cache, foor instance, it does not attempt to
pass all writes through the SSD. Since you cannot rule out IO going
to the origin device it's not suitable for adding resilience to an
intermittent network connection. Perhaps you should look at dm-raid?
- Joe
next prev parent reply other threads:[~2014-09-09 15:47 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-18 9:32 dm-cache caching network volume Étienne BERSAC
2013-06-19 1:23 ` Alex Elsayed
2013-06-19 2:07 ` Alex Elsayed
2013-06-19 16:44 ` Darrick J. Wong
2014-09-09 15:47 ` Joe Thornber [this message]
[not found] <mailman.51.1371657606.18923.dm-devel@redhat.com>
2013-06-20 9:31 ` Étienne BERSAC
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