On Wed, 2 Dec 1998, Leonard N. Zubkoff wrote:
> 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.
Right, although the specs claim to have no problems with 450 and beyond.
Also they claim that the "boxed" xeons won't work, that the processors
must have some sort of "oem" kit to install them. Yet the chassis already
includes the VRM's to support all 4 cpus. Any info on this?
>
> 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.
onboard working sounds good... although I will keep my bt958 in a drawer
close by, just in case. :)
>
> 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.
>
my seagates are 1" drives. But they have a 68 pin SCSI connector + the
separate 4-pin connector for power. Is it difficult to remove the hot-
swappable stuff and mount disks "normally"??
> 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...
>
I'm not going for big memory, just max horsepower right now. Looks
attractive to me...
> Leonard
>
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