VCB$B_BLOCKFACT on OpenVMS VAX 6.2 with 18GB disk

[Russ Carraro]

Anyone know of an (un)official ECO/patch for this problem:

The issue is that VCB$B_BLOCKFACT should be set to 01, because on the issue it is set to 00. This causes the number of cylinders to be
truncated from 10F47 to 0F47 and VMS is unable to map the total blocks on the drive.

[Volker Halle]

Russ,

we recently had a related discussion about big SCSI disks (> 9 GB) here in ITRC:

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=1050010

Looks like the change to set VCB$B_BLOCKFACT to a minimum of 1 has been done around OCT-2000 in the MOUNT96 facility. There are no MOUNT-related patches available for OpenVMS VAX V6.2 from after that date.

You would need to have a PVS (Prior Version Support) contract with HP to ask for a patch from OpenVMS engineering.

As this is a VAX, you could probably look up the instructions from the source listings and develop a patch for MOUNTSHR.EXE

Volker.