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HP OpenVMS Systemsask the wizard |
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The Question is:
On a Microvax II running VMS 5.4-3 with a RD-54 for the system disk and an
RD-53 for data/user disk. The RD-53 disk that was in stalled in the system
died (drive will spin up on initial power up sequence and then spins down)
any way I replaced the failed
drive with another rd53. The system sees the drive but has it Identified as
as an RD-51 when doing a "$ Show Dev/Full DUA1:" as shown below:
$ DAMIEN> show dev/full dua1:
Disk DAMIEN$DUA1:, device type RD51, is online, file-oriented device,
shareable,
available to cluster, error logging is enabled.
Error count 0 Operations completed
Owner process "" Owner UIC
[0,0]
Owner process ID 00000000 Dev Prot
S:RWED,O:RWED,G:RWED,W:RWED
Reference count 0 Default buffer size
512
$ DAMIEN>
If I try to initialize the drive I get the message invalid drive format as
show below whic makes sense.
DAMIEN> init dua1: test
%INIT-F-FORMAT, invalid media format
$ DAMIEN>
So is there away to reset the correct drive model in the dev list (show dev)
that will allow me to initiallize the drive.
The Answer is : You will likely need to reformat the RD53 disk drive using MDM or other similar diagnostic tools. The jumpers on the RD53 must be set to an identical pattern to the original RD53, as a starting point. That said, it is possible that one or more jumpers were originally incorrectly set, and that the signals are "floating" differently on the two RD53 drives, producing the different results. Other causes -- ranging from bad cables to poor connections -- can also trigger to problems. Also note that there are two distinct enclosures, the BA23 and the BA123, and the drive configuration requirements can (and often do) differ between these two enclosures. The BA123 enclosure tends to have a different drive interface extender module and a different front panel module, and this can change the required settings when moving a drive between BA23 and BA123 enclosures. If a BA23, make sure the front panel is a MicroVAX front panel, and not a MicroPDP front panel. Please contact your hardware support organization for assistance.
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