[rescue] 50 pin high density SCSI hard drives?

Sridhar Ayengar ploopster at gmail.com
Fri Feb 12 03:09:08 CST 2010

Ethan O'Toole wrote:
> Hello all,
> Found out the Cray uses Interphase VME disk controllers that are single
> ended. So I'm going to be looking for around 28 3.5" SCSI hard drives.
> The tricky part is the disks have the high dessity 50 pin connector.
> Originally it had 5.25" wide full height disks (as far as I know), but
> I'd like to go 3.5" drives.
> Does anyone have any model #s? Last night I was searching ebay and
> turning up lots (and lots) of 68 pin wide drives, but had a hard time
> finding the 50 pin ones that aren't IDC ribbon cables.
> I'll probably look again this weekend.
> Another thought was maybe I can find old compaq trays or something that
> had those drives in them, and maybe they will cost less.
> On the cray side, I have NO IDEA how picky it is about the disks. So far
> my understanding is the VME Sparcstation 5ish boards that run the IO to
> the disks all run VxWorks.
> It's an odd beast.

Why not use adapters?

Peace...  Sridhar

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