Sun SCSI Disk Drive troubles

[deboni at fernando.llnl.gov]

I do not regularly read this newsgroup, but I have a question one or more
of you may be able to answer, regarding Sun peripherals.

My group recetnly bought a SCSI disk drive for our file server - a CDC
Wren VI, made by Helios - and we're not having any luck getting it to
work. Not being a Unix wiz, I need some assistance. Does anyone out there
have any experience dealing with these things? We've got an Exabyte tap
drive hooked to our SCSI bus, and we've hooked the disk drive to the back
of it. The tape drive is not terminated (it seems to work fine that way,
all by itself, which I don't understand), but the disk drive is. The wierd
thing is, we can mount the disk drive, sometimes we can read from it, and
occasionally we can even write to it; however, any attempt to access it
always ends in some sort of lockup: the system load goes way up, and no
files get moved. I'm at a loss.  Please help. I'll summarize any answers
and successes I have to this group when they occur.

Reply to deboni at diego.llnl.gov.

Thanks in advance!
Tom DeBoni