From: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
To: Mikulas Patocka <mpatocka@redhat.com>
Cc: Lee Revell <rlrevell@joe-job.com>,
Ric Wheeler <ricwheeler@gmail.com>, Theodore Tso <tytso@mit.edu>,
Ric Wheeler <rwheeler@redhat.com>,
Jens Axboe <jens.axboe@oracle.com>,
device-mapper development <dm-devel@redhat.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
ak@linux.intel.com, "MASON, CHRISTOPHER" <CHRIS.MASON@oracle.com>
Subject: Re: [dm-devel] Barriers still not passing on simple dm devices...
Date: Wed, 8 Apr 2009 12:16:12 -0300 [thread overview]
Message-ID: <20090408151612.GF7802@khazad-dum.debian.net> (raw)
In-Reply-To: <Pine.LNX.4.64.0904080839200.28196@hs20-bc2-1.build.redhat.com>
On Wed, 08 Apr 2009, Mikulas Patocka wrote:
> I have seen an installation having generator backup, but with another
> serious flaw --- if someone plugged a computer causing short-circuit, it
> turned off the circuit breaker for the whole rack :)
You will be hard-pressed to find datacenters where the above is NOT true
:-)
Although, usually one has TWO independent power feeds per rack, so a short
is likely to bring down just half of it, and any equipment properly set up
with dual independent power feeds should survive...
--
"One disk to rule them all, One disk to find them. One disk to bring
them all and in the darkness grind them. In the Land of Redmond
where the shadows lie." -- The Silicon Valley Tarot
Henrique Holschuh
next prev parent reply other threads:[~2009-04-08 15:16 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-23 19:04 Eric Sandeen
2009-03-23 19:10 ` Eric Sandeen
2009-03-24 14:02 ` [dm-devel] " Mikulas Patocka
2009-03-24 14:05 ` Jens Axboe
2009-03-24 14:26 ` Mikulas Patocka
2009-03-24 14:30 ` Jens Axboe
2009-03-24 14:45 ` Mikulas Patocka
2009-03-24 15:05 ` Jens Axboe
2009-03-25 15:15 ` Mikulas Patocka
2009-03-25 15:27 ` Jens Axboe
2009-03-25 22:39 ` Mikulas Patocka
2009-03-26 8:42 ` Jens Axboe
2009-03-31 3:39 ` Mikulas Patocka
2009-03-31 10:49 ` Jens Axboe
2009-04-02 23:40 ` Mikulas Patocka
2009-04-03 8:11 ` Jens Axboe
2009-04-04 15:20 ` Ric Wheeler
2009-04-05 1:28 ` Theodore Tso
2009-04-05 11:54 ` Ric Wheeler
2009-04-06 1:14 ` Lee Revell
2009-04-06 1:24 ` Ric Wheeler
2009-04-08 12:44 ` Mikulas Patocka
2009-04-08 15:16 ` Henrique de Moraes Holschuh [this message]
2009-04-09 4:22 ` Eric Sandeen
2009-04-08 12:36 ` Mikulas Patocka
2009-04-08 12:54 ` Mikulas Patocka
2009-04-09 10:48 ` Ric Wheeler
2009-04-08 13:37 ` Mikulas Patocka
2009-04-08 14:06 ` Jens Axboe
2009-04-08 23:44 ` Dave Chinner
2009-04-09 1:27 ` Chris Mason
2009-04-09 10:28 ` Alasdair G Kergon
2009-03-26 12:55 ` Chris Mason
[not found] <ciXHh-39c-37@gated-at.bofh.it>
[not found] ` <cjfuL-6vJ-43@gated-at.bofh.it>
[not found] ` <cjfEl-6J2-45@gated-at.bofh.it>
[not found] ` <cjfNX-6Wh-27@gated-at.bofh.it>
2009-03-26 13:05 ` Bodo Eggert
[not found] ` <cjfXx-78D-9@gated-at.bofh.it>
[not found] ` <cjg7h-7lM-29@gated-at.bofh.it>
[not found] ` <cjgqC-80G-21@gated-at.bofh.it>
[not found] ` <cjD3I-22U-7@gated-at.bofh.it>
[not found] ` <cjDdE-2g3-31@gated-at.bofh.it>
[not found] ` <cjJVv-4vp-13@gated-at.bofh.it>
[not found] ` <cjXlS-uM-1@gated-at.bofh.it>
2009-03-26 15:26 ` Bodo Eggert
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