Date: Mon, 20 Aug 2001 12:41:57 -0400 From: Bryan-TheBS-Smith <b.j.smith@ieee.org> To: Darryl Okahata <darrylo@soco.agilent.com> Cc: Hodge Podge <nicole@unixgirl.com>, freebsd-hardware@FreeBSD.ORG, mike.wentz@3ware.com Subject: Re: 3ware stuff not ready for heavy duty useage-followup Message-ID: <3B813DD5.A86E2016@ieee.org> References: <200108201630.JAA00644@mina.soco.agilent.com>
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Hodge Podge <nicole@unixgirl.com> wrote: > Our Raid 5 array server that died durring rdisting of data > recovered after removing the power for a moment ... It > showed 2 failed drives however and rebuilding failed twice. Er, can you have 2 failed drives in a working RAID-5 array? Or am I missing something here? > This doesn't help Nicole, but I can say that I have seen > (two) intermittent power-up lockups with an Escalade 6200 > -- lockups that an hard reset will not help. I have to do > a full power cycle (but the raid 1 array is fine). I recently bought a 3Ware 6200. Before I did anything, I updated my firmware (with the late June release) and then created the RAID-0 array (two Maxtor 80GB drives). 0 problems so far at just under 2 months, I hope I continue to have none either. I'm now looking to buy a 4-channel and 8-channel card. I am on various lists (XFS, Linux, NFS, etc...) where people have had issues with 3Ware 6000-series cards with RAID-5 volumes, but no one is having issues with RAID-0, 1 or 0+1 (aka 10). Plus the RAID-5 write performance on the 6000-series is not optimal (although the 7000-series is supposed to change that). So I think I'm going to stick with RAID-0+1 for these drives, even if it means losing a 80-240GB in effective disk space verses RAID-5 (160GB instead of 240GB on the 4-channel, and 320GB instead of 560GB on the 8-channel). Any comments? I know this is a FreeBSD list, but I want to hear if anyone has any comments on this. -- TheBS P.S. My target platform is Linux -- specifically RedHat 7.1 + SGI's XFS 1.0.1 filesystem. I have been running XFS for over 6 months now without an error. I cannot consider any other JFS because I have NFS clients (and ReiserFS and JFS continue to have kNFSd issues), and I really want the ACL support of XFS for Samba/Windows as well (which rules out Ext3, which I love on kernel 2.2, but don't trust on kernel 2.4 yet). -- Bryan "TheBS" Smith mailto:b.j.smith@ieee.org chat:thebs413 Engineer Absolute Value Systems, Inc. http://www.linux-wlan.org President SmithConcepts, Inc. http://www.SmithConcepts.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message
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