From: Ed Wilts <ewilts@ewilts.org>
To: device-mapper development <dm-devel@redhat.com>
Subject: Re: Device Mapper as a cache for SAN?
Date: Mon, 10 Apr 2006 13:45:31 -0500 [thread overview]
Message-ID: <20060410184531.GA12908@www.ewilts.org> (raw)
In-Reply-To: <a4e6962a0604101058w75a7147cy8860bc9ebf8f269e@mail.gmail.com>
On Mon, Apr 10, 2006 at 12:58:36PM -0500, Eric Van Hensbergen wrote:
> It seems like device-mapper would allow a fairly straightforward
> implementation of a local-disk cache for a SAN (iSCSI, AOE, etc.).
> The dm-raid1 and dm-mpath modules seem to have elements of overlap,
> but its not clear if there's a straightforward way to implement a
> local-disk block cache using existing modules, or whether a new one is
> needed. Has anyone looked at this before?
The obvious question is why? What would this provide that the kernel
and file systems don't already provide?
.../Ed
--
Ed Wilts, RHCE
Mounds View, MN, USA
mailto:ewilts@ewilts.org
Member #1, Red Hat Community Ambassador Program
next prev parent reply other threads:[~2006-04-10 18:45 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-10 17:58 Device Mapper as a cache for SAN? Eric Van Hensbergen
2006-04-10 18:45 ` Ed Wilts [this message]
2006-04-10 19:46 ` Eric Van Hensbergen
2006-04-10 21:25 ` Ming Zhang
2006-04-11 0:28 ` Eric Van Hensbergen
2006-04-11 0:35 ` Ming Zhang
2006-04-11 0:47 ` Eric Van Hensbergen
2006-04-11 0:50 ` Ming Zhang
2006-04-11 8:55 ` Jure Pečar
2006-04-11 12:57 ` Ming Zhang
2006-04-10 22:22 ` Artur Bergman
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