From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <388E53BA.5DC43A02@erols.com> Date: Tue, 25 Jan 2000 20:54:02 -0500 From: Nelson Abramson MIME-Version: 1.0 To: jingai@floatingpenguins.com CC: linuxppc-user@lists.linuxppc.org, linuxppc-dev@lists.linuxppc.org Subject: Re: Adaptec PowerDomain 29160N supported? References: <200001260144.UAA27868@shell.faradic.net> Content-Type: text/plain; charset=us-ascii Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: jingai wrote: > I'm ready to purchase an adaptec scsi card to replace my initio miles > (doesn't work under linux/ppc), and I noticed that the 29160N is around the > same price as the 2940UW... so, my question is, is it supported under > LinuxPPC? and what exactly makes it 160MB/s? if anyone else owns this > card, I'd like to hear your impressions.. Which initio card are you giving up on? There are device drivers for two types of initio cards last time I looked in the kernel config files (I have no idea if they work, I've just seen them in existance). I don't know about that particular card, but AFAIK, the only scsi standards capable of hitting 160mb/s are u2w lvd, which means that they have a huge bandwith, and use extremely low amounts of energy Only u2w lvd drives can get anywhere near that amount of data transfer, and the chain is only as fast as your slowest device, so if you are migrating a regular ole scsi narrow drive onto a u2w lvd chain, it's only going to go at scsi narrow speeds, which is about 10mb/s max. As a side comment, the state of scsi has gone down hill ever since Apple stopped bundling one w/ every new mac... HTH --Nelson Abramson ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/