MicroVax II

Peter Coghlan cctalk at beyondthepale.ie
Wed Aug 3 04:22:45 CDT 2016

> Also, the built in SCSI on a VAX 3100 doesn't support drives over 1GB.

That's not quite correct.

The firmware on VAXstation 3100 and early MicroVAX 3100 machines has issues
addressing directly attached SCSI disks larger than 1.073GB for booting and
doing system dumps only.  The issues can be worked around but this is not
recommended as it is possible to end up unexpectedly writing a system dump
over something else on the disk.

The issue does not arise with larger drives attached to later model MicroVAX
3100 machines (or early model MicroVAX 3100 machines with updated firmware

There are no issues with larger disks attached to any VAX 3100 machines if they
are not used for booting or dumping, ie they are used for storing data only.

See the OpenVMS FAQ for further details if required.

Peter Coghlan. 

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