Disk becomes miconfigured in HSZ80

[Ronny_7]

Hi,

I have a single disk which is a shadow member of a shadow volume in OpenVMS system.

This disk can be mounted as shadow member in OpenVMS but after few hours, this disk will be dropped from the shadow volume and in HSZ80, it becomes "misconfigured".

We have replaced this disk before and also try to install this disk in other ports but problem still persists.

We have another set of HSZ80 controllers which are also accessible by the OpenVMS system and we can mount the same disk there without any problems.

This problem started after the top HSZ80 controller is replaced. This is a dual redundant HSZ80 controllers.

We are suspecting the top controller is faulty, however all other disks on this controller do not have any problems.

Another strange thing is that FMU does not log any errors when this disk becomes "misconfigured".

Any advise?

Regards,
Ronny

[Michael Schulte zur Sur]

Hi,

can you post show this and show other?
Do both controllers have the same firmware release?

Michael

[Cass Witkowski]

I know that if the slot of the drive shelf goes bad then that can cause this problem

I have also seen a bad disk on the same shelf cause another disk to appear to be bad. However, the bad disk tend to have an amber light on it but not always

[Mike Naime]

If the problem does not follow the spindle, I would be more inclined to believe that it is the shelf that is your problem. Do you have a spareset spindle that you can put into that slot so that you can see if it has the same problems as the other spindle?

As has already been stated, you could have another spindle in that scsi chain that is the root cause of this problem. In my early HSG's I had a drive fail that caused the entire SCSI channel to fail out. We had to pull all the disks in that channel and re-insert one at a time until the failed disk was found.