Date: Fri, 25 Jan 2002 17:17:00 -0500 From: Jason Andresen <jandrese@mitre.org> To: Kent Stewart <kstewart@owt.com> Cc: craig@meoqu.gank.org, freebsd-stable@freebsd.org Subject: Re: Multiple Promise controllers Message-ID: <3C51D95B.D12CB0A4@mitre.org> References: <3C518444.2EBCCD83@mitre.org> <20020125102447.A18865@mikea.ath.cx> <20020125191859.C7B1C62B3@mail.gank.org> <3C51CB7A.8E23CD60@mitre.org> <3C51CCBF.7010904@owt.com>
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Kent Stewart wrote: > > Jason Andresen wrote: > > > Craig Boston wrote: > > > >>On Fri, 25 Jan 2002 10:24:47 -0600 mikea <mikea@mikea.ath.cx> wrote: > >> > >> > >>>If the manufacturer says you can only use, or that they only > >>>support, one card in the system, then what basis in fact do > >>>you have for thinking it possible to use two? > >>> > >>I use two with no problem on 4.4-STABLE: > >> > > > > So am I. It's when I add the third one that problems occur. > > Have you tried the tx4? The other thing is that by the time you get > this kind of setup shouldn't you be looking at scsi anyway. I think > you have passed beyond what IDE was intended to be used. The TX4 didn't really do what I wanted. I was looking to build a slow large RAID5 drive array. The TX4 only supports RAID1, 0, and 1_0. I'm actually trying to get back to the original intent of RAID by using a large number of inexpensive disks (and moderatly priced support hardware). I've actually managed to get it working, but I had to use the motherboard's ATA controller (a PIIX4 limited to ATA33 and forcing on the of the drives to be the slave to the primary HD). I have 10 80GB hard drives in the system, 4 of which are a RAID0 array for backups and the other 6 are a RAID5 data server. I was hoping to get all of the big data drives on the Promise controllers, but I couldn't get the third one working (I've got the data drives as the master on all of the contollers and the backup as the slave, since they shouldn't generally be used at the same time). The entire setup works pretty well (and it cost me < $1500 since I used an old PII motherboard/processor). Not too bad for something that gives me over half a terabyte of usable storage (286GB and 361GB to be precise). -- \ |_ _|__ __|_ \ __| Jason Andresen jandrese@mitre.org |\/ | | | / _| Network and Distributed Systems Engineer _| _|___| _| _|_\___| Office: 703-883-7755 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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