Replaced disk in server LUN state is UNOPEN, does not show up in ioscan

[Dave Chamberlin]

Greetings. Had failed mirror of root disk on rp7420 running hp-ux 11.31.  After unmirroring, removing from vg00, I replaced the disk. It was still shoing NO_HW, so I used rmsf/insf, now nothing shows up at that address. ioscan -fnC disk does not show the disk, though ioscan -fNC disk still shows NO_HW.  An ioscan -m lun shows disabled in the Health column. I see some messages in syslog.log .....An attempt to probe existing LUN id 0x0 failed with errno of 6.....lunpath, instance 190. Is this just a bad replacement  disk or is there a way to reactivate the lun? Thanks

The output from scsimgr lun_map shows this

LUN PATH INFORMATION FOR LUN : /dev/rdisk/disk211

Total number of LUN paths = 1

World Wide Identifier(WWID) = 0x5001862003c5f6a8

LUN path : lunpath190

Class = lunpath

Instance = 190

Hardware path = 1/0/1/1/0/1/1.0x6.0x0

SCSI transport protocol = parallel_scsi

State = UNOPEN

Last Open or Close state = FAILED

[Torsten.]

Dave,

read this thread

http://h30499.www3.hp.com/t5/System-Administration/Issues-with-Make-tape-recovery-amp-LIF/m-p/5773191#M481492

and use scsimgr with replace_wwid option.

[Dave Chamberlin · Accepted solution]

I actually had already used scsimgr with that option, it did not help. I had also removed device files using rmsf and reinstalled with insf, also to no avail. Thought it strange that ioscan showed nothing for legacy naming, but continued to show NO_HW for agile naming. Finally tried using rmsf with agile notation. Then ioscan with agile naming showed no disk just like ioscan with legacy naming. Now the strange bit - after this, I did another ioscan (for everything) and lo and behold - the disk was now there. Subsequent ioscans in both legacy/agile notations showed the disk and I was able to proceed to remirror the disk. It never occurred to me to remove BOTH sets of drivers...