From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lars Marowsky-Bree Subject: Re: Thoughts on using SSD Date: Sat, 4 Apr 2009 01:28:55 +0200 Message-ID: <20090403232855.GY2449@suse.de> References: <49CC0B0D.5000904@tmr.com> <18892.22531.392563.258229@notabene.brown> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Content-Disposition: inline In-Reply-To: <18892.22531.392563.258229@notabene.brown> Sender: linux-raid-owner@vger.kernel.org To: Neil Brown , Bill Davidsen Cc: Linux RAID List-Id: linux-raid.ids On 2009-03-27T15:37:23, Neil Brown wrote: > .... I wonder if it would make sense to mirror two partitions of the > one SSD?? It would save you from media errors and only expose you to > total-drive-death errors. Depends; SSDs have different failure modes. One of them is that for performance, memory is often interleaved and heavily remapped. So if on= e of the cells dies, you may in fact lose random sectors in _both_ of you= r partitions, so they wouldn't be independent and not necessarily make fo= r good RAID targets ;-) Regards, Lars --=20 Teamlead Kernel, SuSE Labs, Research and Development SUSE LINUX Products GmbH, GF: Markus Rex, HRB 16746 (AG N=FCrnberg) "Experience is the name everyone gives to their mistakes." -- Oscar Wil= de -- To unsubscribe from this list: send the line "unsubscribe linux-raid" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html