There's one on eBay, don't know if I'd trust it.
www.ebay.com/itm/152238200965
They were sold with Intel MDS's
I've got one or two from a TI 990
They are HEAVY
They are basically IBM 5440 media.
The format is in the queue to read, along with about a dozen others of more
importance.
Be warned,
Apparently Paul Vixie's got a CDC Hawk disk pack from an Alpha Micro AM-100/T
that he'd like to get the bits off of (he'll worry about the file system
separately). I have a controller card in an unknown state but I don't have
any way of reading the disk pack, so it will probably be easier to do thi
