From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christopher Smith Subject: Re: Problems with multiple Promise SATA150 TX4 cards Date: Thu, 26 Jan 2006 11:26:56 +1100 Message-ID: <43D81750.3060405@nighthawkrad.net> References: <43D5EF58.9010807@wasp.net.au> <43D66681.708@dgreaves.com> <1138183485.27604.49.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1138183485.27604.49.camel@localhost.localdomain> Sender: linux-ide-owner@vger.kernel.org To: Erik Slagter Cc: linux-raid@vger.kernel.org, IDE Linux List-Id: linux-raid.ids Erik Slagter wrote: > On Tue, 2006-01-24 at 17:40 +0000, David Greaves wrote: >>>> sounds like a spinup time on marginal power to me. > >>> No, it's a limitation of the Promise BIOS on the cards, it will only >>> detect a maximum of 8 drives. I had a quick convo with tech support >>> from Promise over this and they told me they don't support more than >>> one card in a machine in any case. (Which is odd given they advertise >>> the ability to RAID-5 across 2 cards!) > >>> > > I'd really consider the PSU. I had all sorts of weird problems with my > promise SATA150 TX2plus until I replaced the PSU. Apparently it doesn't > suffice to supply _enough_ power. I've since setup the machine so only the motherboard and boot drive are powered from the system PSU and the 12 SATA drives are powered from a separate PSU. Since the machine has previously been running with 8 drives fine on just the system PSU, I feel confident saying power supply has nothing to do with my problems. CS