Date: Wed, 2 Dec 1998 14:34:43 -0600 (CST)
From: "Robert M. Hyatt" <[EMAIL PROTECTED]>
I'm in the process of giving Crafty a shot of "steroids"... I'm going
to do this by moving it from a quad-p6 to a quad xeon/450 machine. I'm
looking right now and the best deal seems to be the intel "chassis"
SC450NX. Since Linus is running an intel quad xeon, and I assume others
are too, I have a couple of questions for those running this machine:
Linus is running an Intel Aspend/Drake (AD450NX) quad Xeon system as am I. I
(i.e. VA Research) have also been working with the Sitka/Cabrillo (SC450NX).
Both these models are only available with 400MHz Xeon processors at the present
time, by the way.
1. Do the dual onboard SCSI channels work under linux ok? Or should I
plan on disabling them and using my trusty BusLogic?
The 53c896 seems to work just fine using Gerard's driver. I had to make one
minor tweek to it, which I'm sure he's incorporated back by now. The SC450NX
has both an 53c896 for dual Ultra-2 as well as a 53c810 for narrow devices.
You can also use a Mylex AcceleRAID 200 or 250 which takes over the onboard
53c810 and gives hardware RAID capabaility.
2. This chassis had 6 hot-swappable slots for disks, plus 6 cages for
the disks that will support the 10K fast guys, as the cages have the
necessary heat sinks and fans to keep them cool. Does anyone know if
these will also fit the normal 2-4gig wide scsi drives (ie seagate)?
Or do I have to start over with disks as well?
Note that this only supports 6 of the 1in high drives, not 6 of the 1.6in
models. The hot swap backplane is Ultra-2/LVD and requires SCA (Single
Connector Attachment) disk drives. If your drives are not SCA, then you'll
need to replace them to use the hot swap backplane.
If all works out, I'll supply some performance numbers in a few weeks
I hope...
If there's anything I can help with, please let me know. I have an SC450NX
with 2GB. Which reminds me, I need to post the patch to support 2GB physical
memory in 2.0.36...
Leonard
