[ale] Spec'ing a FreeBSD box, need some help

Jonathan Chum jchum at aismedia.com
Tue Dec 3 17:34:19 EST 2002


Hi guys,

I'm trying to spec out a machine and here's what I definately want to work
some how. The server is a SuperMicro and I'm primarily looking at the
6022P-8R model
(http://supermicro.com/PRODUCT/SUPERServer/SuperServer6022P-8R.htm). The
onboard SCUSI is Adaptec AIC-7902 dual channel Ultra320 SCSI controller.
I'd like to have RAID 5 support so I'm out to purchase a RAID card as well,
and I'm looking at the Adaptec 2000S
(http://www.adaptec.com/worldwide/support/techspecs.html?sess=no&prodkey=ASR
-2000S&cat=%2fProduct%2fASR-2000S&fromarea=prod)

The Ultra320 cards by Adaptec is not yet supporting FreeBSD and this is the
only Ultra160 card that supports FreeBSD.
For the harddrive, I'm looking at the Seagate Cheetah 36.7 GB hot-swappable
Ultra 320 drives.

The problem I'm having to decide is whether an Ultra 160 RAID card is first
compaitable with an Ultra 320 SCSI controller. I've seen sites that is
selling the unit with the Adaptec Ultra 160 so I think that part is fine,
but I just want to verify.

The next problem is that I'd like to get a the Seagate Cheetah 36.7 Ultra
320 and hope that it's will be compaitable with the Ultra 160 RAID. At least
that it will slow down to 160 mb/s.

I was not able to locate a Ultra 160 with hot-swappable features from the
wholesaler. All of the Ultra 160 were standard harddrives.
I really don't want to purchase a low end MOBO support Ultra 160 and then a
few months later, see that Adaptec finally supports FreeBSD on the Ultra 320
RAID cards. I really like to get everything and when Adaptec releases
FreeBSD support for Ultra 320, then we just need a new card without buying
new drives and MB.

Anyone know about the backward compatability of Ultra 320 SCUSI -> Ultra 160
RAID -> Ultra 320 Hot Swappable HD?

Regards,
Jonathan Chum
Systems Developer

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