[2946] in linux-scsi channel archive
Re: Mylex (formerly BusLogic) DAC960SU external SCSI-to-SCSI?
daemon@ATHENA.MIT.EDU (Jeff Noxon)
Wed Dec 17 12:07:31 1997
Date: Wed, 17 Dec 1997 10:06:19 -0600
From: Jeff Noxon <jeff@planetfall.com>
To: Floody <flood@evcom.net>
Cc: Jeff Noxon <jeff@planetfall.com>, linux-scsi@vger.rutgers.edu
In-Reply-To: <Pine.LNX.3.96.971217103953.5943C-100000@zothommog.evcom.net>; from Floody on Wed, Dec 17, 1997 at 10:44:18AM -0500
On Wed, Dec 17, 1997 at 10:44:18AM -0500, Floody wrote:
> On Wed, 17 Dec 1997, Jeff Noxon wrote:
>
> > On Tue, Dec 16, 1997 at 05:05:00PM -0500, Floody wrote:
> > > I'm thinking of building an external SCSI-to-SCSI 5 drive RAID5 array
> > > using the BusLogic DAC960SU in an external cabinet coupled to a BusLogic
> > > BT-958 PCI host adapter. I am fairly sure the BT-958 is supported by
> > > Linux. Does anyone other there have any information or experience
> > > regarding the Mylex/BusLogic external array hardware?
> >
> > The DAC960 products are Mylex products. They were never BusLogic
> > products. And they are not yet supported by Linux. Get DPT if you
> > need RAID.
> >
> The DAC960 is an _external_ scsi-to-scsi controller. It does not need
> reside in a host PC, and thus does not need to be supported by Linux, it
> presents itself as a single device to the host system (which may be
> running *any* supported controller), possibly with multiple LUNs
> (depending on how the DAC960 is configured).
>
> It appears as though Mylex has purchased BusLogic, although I'm not
> completely sure. I wasn't sure which products were formerly Mylex's, and
> which were BusLogic's.
>
> For my purposes, external RAID is a necessity (physical requirement,
> basically).
My fault, I didn't read your whole message. I'm used to seeing people
ask about the DAC960 controller boards, and the word "incompatible"
always comes to mind. Sorry.
The BT-958 works great with Linux, by the way. Much better than
Adaptec.
You're correct that Mylex has purchased Buslogic. The DAC960 product
line has existed for many years as a Mylex entity. I think the first
products used the EISA bus. :)
CMD also makes some nice external RAID controllers. After the buggy
IDE chip fiasco, I'm not sure if I'd trust them, but who knows...
Good luck,
Jeff
