We had the same issue when we reused discs that had previously been part of
a mirrored pair (we removed them without scratching them).  HP provided a
fix which basically amounted to using debug to re-write a couple of bits on
the disc.
---------------------------------------------------------
Gary Paveza, Jr.
Senior Systems Administrator
(302) 252-4831 - phone
(302) 377-1516 - cell

        -----Original Message-----
        From:   Craig Lalley [SMTP:[log in to unmask]]
        Sent:   Monday, June 16, 2003 9:21 AM
        To:     [log in to unmask]
        Subject:        [HP3000-L] Disc Header information

        Everyone,

        I recently ran into an issue where the 3000 could not "recognize" a
new disc I installed in the machine.

        At boot time, some strange error message occured saying the new disc
was a "mirror of ldev 1", the system then put the drive in a unaccessable
state.

        When the system comes up a DSTAT all shows the disc in an "UNKNOWN"
state.  It will not let me "SCRATCHVOL", if I do a "FORMATVOL" the system
goes into a loop, hitting brake and abort, it then says the drive was put in
a loaner state, but it was not.

        I have found a work around, but it takes about 20-30 minutes for
each disc.  My question is...

        1)  What type of header/MBR record is MPE looking for?
        2)  Is it possible to create the header record?  (Unix PVCREATE)
        3)  Does anyone have a script to do it in debug?

        Thanks everyone for the help.

        -Craig


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