Date: Tue, 21 Aug 2001 17:29:45 -0700 (PDT) From: Hodge Podge <nicole@unixgirl.com> To: Mike Tancsa <mike@sentex.net> Cc: freebsd-hardware@FreeBSD.ORG Subject: Re: 3ware stuff not ready for heavy duty useage-followup Message-ID: <XFMail.010821172945.nicole@unixgirl.com> In-Reply-To: <pgp3oto2bpcec1gnudpi329ml3emoilgmd@4ax.com>
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On 21-Aug-01 Mike Tancsa wrote: > On 20 Aug 2001 14:15:05 -0400, in sentex.lists.freebsd.hardware you wrote: > >> >> I have a 3ware raid a well that so far has been A-ok. However it is not >>loaded much. The arrays so far have seemed ok, until loaded like a very busy >>server with lots of IO. >> SO far out of 4 servers attempted with the 3ware card.. not one has >> survived. >>Only my personal one which is obviosly less loaded. > > I use a 4 port cards on my news server. 20Mb/s Usenet feed from Cidera > coming in 24hrs a day and 2Mb/s going out for readers plus night time > expires on DNEWS. I would call this fairly busy server in terms of IO. No > problems ever. The IDE drives are almost a year old and dont have errors. > The 4 drives are in 2 RAID 0 sets. > Yea.. Thats the strange part, I have had no problems with RAID 0 Only RAID 10 and RAID 5. >> >> As I said before, I don't think it is a driver issue, or a FreeBSD issue, >> but >>more a, can IDE's take the abuse and how well can 3ware deal with the myriad >>of >>error reporing they told me is a problem with IDE drives. >> I have heard they wil soon have a way to remap around bad sectors on the >> fly, >>This would prevent them from having to drop the disk in the event of error >>reporting hopefully. > > Even with "cheap" IDE drives, I dont think you are going to see failures on > a weekly basis. This is rather odd. Like I said, I have been pounding the > snot out of 4 of them in my news server as well as 2 13 gig drives on a > busy squid box. I also have a 4 port RAID 10 box on a fairly busy Win2K > box running MS SQL 7. Yea.. I think it also has to do with the size of the drive. As they keep putting more and more data into a smaller area, if you have a busy server, especially a database server were the same files are very active, I think that is were IDE's might really show their deficiancies. > Perhaps its the 8 port card ? I have not used any of those. Dunno. The more irritating thing is that with the last 8 port RAID 5 array, when one drive failed, it refused to rebuild to the hot spare. I tried twice and it failed twice then froze again :( Maybe it is the power supply issue, maybe there were enough drives and they and or the card or something is sensitive to any voltage spikes. If I can get the rebuild help from 3ware soon I hope to do some imperical testing on the failed database server to find out. I will run teh snot out of it and try to do a rebuild and monitor the voltages with a digital meter. I did some testing today and found it to be pretty stable even on bootup. Nicole > ---Mike > > Mike Tancsa (mdtancsa@sentex.net) > Sentex Communications Corp, > Waterloo, Ontario, Canada > "Given enough time, 100 monkeys on 100 routers > could setup a national IP network." (KDW2) > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-hardware" in the body of the message ******* |\ __ /| (`\ ******* * * | o_o |__ ) ) * * * * // \\ * * * Nicole Harrington | AKA Hodge Podge * ----------------------(((---(((-------------------------------- nicole@unixgirl.com http://www.unixgirl.com/ webmistress@dangermouse.org http://www.dangermouse.org/ nicole@deviantimages.com http://www.deviantimages.com/ -- Powered By Coca-Cola and FreeBSD -- "The world is run by those who show up" -- The Best Place for Your Web Site - www.WebWeaver.net -- ---------------------------------------------------------------- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message
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