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Date: Sun, 5 Apr 2009 21:14:42 -0400 From: Lee Revell <rlrevell@...-job.com> To: Ric Wheeler <ricwheeler@...il.com> Cc: Theodore Tso <tytso@....edu>, Ric Wheeler <rwheeler@...hat.com>, Jens Axboe <jens.axboe@...cle.com>, Mikulas Patocka <mpatocka@...hat.com>, device-mapper development <dm-devel@...hat.com>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, ak@...ux.intel.com, "MASON, CHRISTOPHER" <CHRIS.MASON@...cle.com> Subject: Re: [dm-devel] Barriers still not passing on simple dm devices... On Sun, Apr 5, 2009 at 7:54 AM, Ric Wheeler <ricwheeler@...il.com> wrote: > One thing to point out here is that there are a lot of "servers" in high end > data centers that do not have UPS backup. Those racks full of 1U and 2U > boxes that are used to make "grids", "clouds" and so on often are built with > as much gear as you can stuff in a rack - no batteries or UPS to be seen, so > they are really quite similar to the normal desktop or home systems that we > normally run at home :-) These days even bargain basement data centers provide UPS functionality for you, via generator backup and A/B power. Lee -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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