[Info-vax] RZ1DB etc

[Jan-Erik Soderholm]

Phillip Helbig---undress to reply wrote 2012-04-18 22:43:
> The RZ23 was about 120 MB, the RZ26 about 1 GB (I don't remember seeing
> RZ 24 or RZ25, presumably 250 and 500 MB?), the RZ28 2 GB (why the jump
> and no RZ27?) and the RZ29 4 GB.  The RZ1C% is also 4 GB and the RZ1D%,
> e.g. the RZ1DB, is 9 GB.  (Presumably the A as the fourth character is 1
> GB and B is 2 GB, though I have never seen RZ1A% or RZ1B% disks.)  The
> RZ1E% is 18 GB.
>
> These are all labels I've seen on SBB disks, the thick ones.
>
> What does the fifth character stand for, e.g. the B in RZ1DB?
>
> I have an RZ1FB at 36 GB.  Were there larger-capacity disks in this size
> (thick SBB for a BA356)?
>
> Are all the RZ1* disks ultra wide (e.g. 40 MB/s)?
>

As far as I remember there was compatible disks (same SCSI
interface and same size, looked the same from VMS) but had different
disks inside. You could tell be the quite different weight.

That might have been the last/fifth character...

Jan-Erik.