From: Goldwyn Rodrigues <rgoldwyn@suse.com>
To: Richard Weinberger <richard.weinberger@gmail.com>
Cc: David Teigland <teigland@redhat.com>,
LKML <linux-kernel@vger.kernel.org>, NeilBrown <neilb@suse.de>
Subject: Re: clustered MD
Date: Wed, 10 Jun 2015 08:59:42 -0500 [thread overview]
Message-ID: <557842CE.2040204@suse.com> (raw)
In-Reply-To: <CAFLxGvzy6_tATKZgxWJqv+KzhURNza5VxmuKwikVnFcmLtXzsw@mail.gmail.com>
On 06/10/2015 03:00 AM, Richard Weinberger wrote:
> On Wed, Jun 10, 2015 at 5:33 AM, Goldwyn Rodrigues <rgoldwyn@suse.com> wrote:
>> David Lang has already responded: The idea is to use a RAID device
>> (currently only level 1 mirroring is supported) with multiple nodes of the
>> cluster.
>>
>> Here is a description on how to use it:
>> http://marc.info/?l=linux-raid&m=141935561418770&w=2
>
> Sorry if this is a stupid question, but how does this compare to DRBD?
>
No, it is not.
DRBD is for local devices synced over the network. Cluster-md is for
shared devices such as SAN, so all syncs happen over the FC.
DRBD works for two nodes (until recently), cluster-md works for multiple
nodes.
--
Goldwyn
next prev parent reply other threads:[~2015-06-10 14:00 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-09 18:22 clustered MD David Teigland
2015-06-09 19:26 ` Goldwyn Rodrigues
2015-06-09 19:45 ` David Teigland
2015-06-09 20:08 ` Goldwyn Rodrigues
2015-06-09 20:30 ` David Teigland
2015-06-09 20:33 ` David Lang
2015-06-10 3:33 ` Goldwyn Rodrigues
2015-06-10 8:00 ` Richard Weinberger
2015-06-10 13:59 ` Goldwyn Rodrigues [this message]
2015-06-10 15:01 ` David Teigland
2015-06-10 15:27 ` Goldwyn Rodrigues
2015-06-10 15:48 ` David Teigland
2015-06-10 16:23 ` Goldwyn Rodrigues
2015-06-10 17:05 ` David Teigland
2015-06-10 19:22 ` David Teigland
2015-06-10 20:31 ` Neil Brown
2015-06-10 21:07 ` David Teigland
2015-06-10 22:11 ` David Teigland
2015-06-10 22:50 ` Neil Brown
2015-06-12 18:46 ` David Teigland
2015-06-14 22:19 ` Goldwyn Rodrigues
2015-06-23 1:34 ` NeilBrown
2015-06-09 20:14 ` Goldwyn Rodrigues
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