From: Lars Marowsky-Bree <lmb@suse.de>
To: Andrew Morton <akpm@linux-foundation.org>,
Philipp Reisner <philipp.reisner@linbit.com>
Cc: linux-kernel@vger.kernel.org, Jens Axboe <jens.axboe@oracle.com>,
Greg KH <gregkh@suse.de>, Neil Brown <neilb@suse.de>,
James Bottomley <James.Bottomley@HansenPartnership.com>,
Sam Ravnborg <sam@ravnborg.org>, Dave Jones <davej@redhat.com>,
Nikanth Karthikesan <knikanth@suse.de>,
"Nicholas A. Bellinger" <nab@linux-iscsi.org>,
Kyle Moffett <kyle@moffetthome.net>,
Bart Van Assche <bart.vanassche@gmail.com>,
Lars Ellenberg <lars.ellenberg@linbit.com>
Subject: Re: [PATCH 00/16] DRBD: a block device for HA clusters
Date: Fri, 1 May 2009 13:15:54 +0200 [thread overview]
Message-ID: <20090501111554.GW12180@suse.de> (raw)
In-Reply-To: <20090501015902.ed8b56d3.akpm@linux-foundation.org>
On 2009-05-01T01:59:02, Andrew Morton <akpm@linux-foundation.org> wrote:
> On Thu, 30 Apr 2009 13:26:36 +0200 Philipp Reisner <philipp.reisner@linbit.com> wrote:
>
> > This is a repost of DRBD
> How fast is it?
>From experience, it achieves performance of approx. 98% of wire or
spindle speed, so it is considered rather efficient code.
> Is it being used anywhere for anything? If so, where and what?
It is used by many customers (thousands world-wide, I'm sure) to
replicate block device data locally (to replace more expensive SANs
while achieving higher availablity) or async/remotely (for disaster
recovery).
The code is rather stable, the first drbd deployments date back many
years - drbd0.7 for example has been shipping with SLES10/9, and 0.6
with SLES8 already. The new drbd8 code is shipping on SLE11 and used
also in combination with OCFS2.
So we very much welcome the renewed and persistent interest of merging
the code in mainline (once all serious issues are addressed).
Even if in the long-term a merge with other raid implementations is
pursued (which I'd welcome even more), the existence of so many
deployments means we'll need the code for awhile still.
Regards,
Lars
--
SuSE Labs, OPS Engineering, Novell, Inc.
SUSE LINUX Products GmbH, GF: Markus Rex, HRB 16746 (AG Nürnberg)
"Experience is the name everyone gives to their mistakes." -- Oscar Wilde
next prev parent reply other threads:[~2009-05-01 11:16 UTC|newest]
Thread overview: 88+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-30 11:26 [PATCH 00/16] DRBD: a block device for HA clusters Philipp Reisner
2009-04-30 11:26 ` [PATCH 01/16] DRBD: major.h Philipp Reisner
2009-04-30 11:26 ` [PATCH 02/16] DRBD: lru_cache Philipp Reisner
2009-04-30 11:26 ` [PATCH 03/16] DRBD: activity_log Philipp Reisner
2009-04-30 11:26 ` [PATCH 04/16] DRBD: bitmap Philipp Reisner
2009-04-30 11:26 ` [PATCH 05/16] DRBD: request Philipp Reisner
2009-04-30 11:26 ` [PATCH 06/16] DRBD: userspace_interface Philipp Reisner
2009-04-30 11:26 ` [PATCH 07/16] DRBD: internal_data_structures Philipp Reisner
2009-04-30 11:26 ` [PATCH 08/16] DRBD: main Philipp Reisner
2009-04-30 11:26 ` [PATCH 09/16] DRBD: receiver Philipp Reisner
2009-04-30 11:26 ` [PATCH 10/16] DRBD: proc Philipp Reisner
2009-04-30 11:26 ` [PATCH 11/16] DRBD: worker Philipp Reisner
2009-04-30 11:26 ` [PATCH 12/16] DRBD: variable_length_integer_encoding Philipp Reisner
2009-04-30 11:26 ` [PATCH 13/16] DRBD: misc Philipp Reisner
2009-04-30 11:26 ` [PATCH 14/16] DRBD: tracepoint_probes Philipp Reisner
2009-04-30 11:26 ` [PATCH 15/16] DRBD: documentation Philipp Reisner
2009-04-30 11:26 ` [PATCH 16/16] DRBD: final Philipp Reisner
2009-05-02 15:45 ` [PATCH 12/16] DRBD: variable_length_integer_encoding James Bottomley
2009-05-02 17:29 ` Lars Ellenberg
2009-05-02 15:44 ` [PATCH 10/16] DRBD: proc James Bottomley
2009-05-02 20:23 ` Lars Ellenberg
2009-05-02 15:41 ` [PATCH 04/16] DRBD: bitmap James Bottomley
2009-05-02 17:28 ` Lars Ellenberg
2009-05-03 5:21 ` Neil Brown
2009-05-03 7:38 ` Lars Ellenberg
2009-05-05 17:48 ` Lars Marowsky-Bree
2009-05-05 17:51 ` James Bottomley
2009-05-05 22:26 ` Neil Brown
2009-05-01 9:01 ` [PATCH 03/16] DRBD: activity_log Andrew Morton
2009-05-02 17:00 ` Lars Ellenberg
2009-05-01 8:59 ` [PATCH 02/16] DRBD: lru_cache Andrew Morton
2009-05-02 15:26 ` Lars Ellenberg
2009-05-02 17:58 ` Andrew Morton
2009-05-02 18:13 ` Lars Ellenberg
2009-05-02 18:26 ` Andrew Morton
2009-05-02 19:39 ` Lars Ellenberg
2009-05-02 23:51 ` Kyle Moffett
2009-05-03 6:27 ` Lars Ellenberg
2009-05-03 14:06 ` Kyle Moffett
2009-05-03 22:48 ` Lars Ellenberg
2009-05-04 0:48 ` Kyle Moffett
2009-05-04 1:01 ` Kyle Moffett
2009-05-04 16:12 ` Rik van Riel
2009-05-04 16:15 ` Lars Ellenberg
2009-05-01 8:59 ` [PATCH 01/16] DRBD: major.h Andrew Morton
2009-05-01 8:59 ` [PATCH 00/16] DRBD: a block device for HA clusters Andrew Morton
2009-05-01 11:15 ` Lars Marowsky-Bree [this message]
2009-05-01 13:14 ` Dave Jones
2009-05-01 19:14 ` Andrew Morton
2009-05-05 4:05 ` Christian Kujau
2009-05-02 7:33 ` Bart Van Assche
2009-05-03 5:36 ` Willy Tarreau
2009-05-03 5:40 ` david
2009-05-03 14:21 ` James Bottomley
2009-05-03 14:36 ` david
2009-05-03 14:45 ` James Bottomley
2009-05-03 14:56 ` david
2009-05-03 15:09 ` James Bottomley
2009-05-03 15:22 ` david
2009-05-03 15:38 ` James Bottomley
2009-05-03 15:48 ` david
2009-05-03 16:02 ` James Bottomley
2009-05-03 16:13 ` david
2009-05-04 8:28 ` Philipp Reisner
2009-05-04 17:24 ` James Bottomley
2009-05-05 8:21 ` Philipp Reisner
2009-05-05 14:09 ` James Bottomley
2009-05-05 15:56 ` Philipp Reisner
2009-05-05 17:05 ` James Bottomley
2009-05-05 21:45 ` Philipp Reisner
2009-05-05 21:53 ` James Bottomley
2009-05-06 8:17 ` Philipp Reisner
2009-05-05 15:03 ` Bart Van Assche
2009-05-05 15:57 ` Philipp Reisner
2009-05-05 17:38 ` Lars Marowsky-Bree
2009-05-03 10:06 ` Philipp Reisner
2009-05-03 10:15 ` Thomas Backlund
2009-05-03 5:53 ` Neil Brown
2009-05-03 6:24 ` david
2009-05-03 8:29 ` Lars Ellenberg
2009-05-03 11:00 ` Neil Brown
2009-05-03 21:32 ` Lars Ellenberg
2009-05-04 16:12 ` Lars Marowsky-Bree
2009-05-05 22:08 ` Lars Ellenberg
-- strict thread matches above, loose matches on Subject: below --
2009-05-14 22:31 devzero
2009-05-15 12:10 Philipp Reisner
2009-07-06 15:39 [PATCH 00/16] drbd: " Philipp Reisner
2009-07-21 5:49 ` Andrew Morton
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20090501111554.GW12180@suse.de \
--to=lmb@suse.de \
--cc=James.Bottomley@HansenPartnership.com \
--cc=akpm@linux-foundation.org \
--cc=bart.vanassche@gmail.com \
--cc=davej@redhat.com \
--cc=gregkh@suse.de \
--cc=jens.axboe@oracle.com \
--cc=knikanth@suse.de \
--cc=kyle@moffetthome.net \
--cc=lars.ellenberg@linbit.com \
--cc=linux-kernel@vger.kernel.org \
--cc=nab@linux-iscsi.org \
--cc=neilb@suse.de \
--cc=philipp.reisner@linbit.com \
--cc=sam@ravnborg.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox