From mboxrd@z Thu Jan 1 00:00:00 1970 From: Brad Campbell Subject: Re: Two Drive Failure on RAID-5 Date: Tue, 20 May 2008 23:28:22 +0400 Message-ID: <48332656.1030401@wasp.net.au> References: <48327FC2.1010901@dgreaves.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: Cry Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids Cry wrote: > > Supermicro SUPERMICRO CSE-M35T-1 Hot-Swapable SATA HDD Enclosure > > http://www.supermicro.com/products/accessories/mobilerack/CSE-M35T-1.cfm > > and building a raid-6 array. I'll convert the surviving drives into a backup > for the primary array. Any feedback on the above? Is there a suggestion on an > inexpensive controller to give more SATA ports that is very software raid > compatible? > I've got 5 of those enclosures with Maxtor Maxline-II drives in them. I've had them all running between 3 & 4 years now and I've been *extremely* happy with the enclosures. The whole lot are running on 7 Promise SATA150TX4 cards. So I'd certainly be happy with the enclosures, however I tend to agree with what David said below about going for the higher grade drives. I paid a bit extra for the Maxline-II drives over the desktop grade disks, and I've got 27 of them with about 30,000 hours on them now. One early life failure (in the 1st 5 hours) and one recently replaced as it was growing defects.. but the 26 remaining drives are solid. Oh, 15 drives are in a RAID-6 and 10 are in a RAID-5. I plan to replace the 10 drive RAID-5 with 10 1TB drives in a RAID-6 in the not to distant future. I did have a dual drive failure on the RAID-6 (not actually drive related, but a software glitch) and having the RAID-6 saved the data nicely. Brad -- "Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so." -- Douglas Adams