Does anyone recognise the make/model of this old hard disk drive?

[Halcyon]

The top cover has been removed and there are no identifying brands or markings apart from a serial number. The platters are approx. 20cm in diameter.

EDIT: Removing the metal cover reveals some ICs but none appear to have date codes.

EDIT #2: I'm just wondering if the SS9130 and QFVD9146 markings are date codes? Late 1991 perhaps?

[Ampera]

It could be anything. An indication as to what sort of interface it uses may help. With 20cm platters, I don't imagine that thing fitting into a PC-compatible any time soon, and before then hard drives were mostly server, mainframe, or mini's domain.

[Halcyon]

It's definitely not a PC hard disk, it's from a mainframe or server of some sort. Probably from the 1980's if I had to guess.

[glarsson]

In the 1980's we used 14 inch drives in our DEC VAX cluster. Each 14 inch drive had a capacity of about 450MB. This gives an indication on the capacity of this 8 inch drive ...

If you had money, very much of it, you could buy an IBIS 1400. A disk with a weird vertical 14 inch drive with a capacity of 1.4GB. Cray used these drives with their supercomputers.

[jmelson]

It's definitely not a PC hard disk, it's from a mainframe or server of some sort. Probably from the 1980's if I had to guess.

The date code on the MECL chips shows 1991.  Could be a CDC, IBM or DEC drive.  Ought to be a logo on something to tell for sure.
I did see a hint of a bar code on the edge of the platters.

Jon

[Halcyon]

The date code on the MECL chips shows 1991.  Could be a CDC, IBM or DEC drive.  Ought to be a logo on something to tell for sure.
I did see a hint of a bar code on the edge of the platters.

Yep, it looks like the edge of each platter is encoded with a barcode however they are too narrow for my camera's auto focus to lock onto. No logos at all, I suspect there would have been on the top cover, but that is long gone.

[amspire]

I think the 32R252R's ic's from Silicon Systems date to around 1993. Does it have an IDE (40 pin) connector or a SCSI connector?

If it was IDE, the drive has a maximum capacity of just over 500MBytes and could easily be a lot less. That was as big as IDE could handle back then. If it is SCSI, there were a few brands that went up to about 2GBytes which was massive at the time.

[Halcyon]

I found out what it was (actually found the other half of the case). It's a Seagate 2GB "Sabre Module Assembly" ML202948 (Assy # 70896783). It looks like it had a SCSI interface but it has been removed. It seems to be part of a bigger system.