We installed a new z/VM 5.3 from tape a while back and are now trying to back up the z/VM volumes using ADRDSSU from a z/OS system which runs in a different LPAR.
We get a message that says "the VM-formatted volume does not have an OS-compatible VTOC". I found some instructions for using ICKDSF (see below) to format cylinder 0 which is supposed to solve the problem. I am wondering if this is the only way to handle this, or if there are other way of doing it or gotcha's I should watch out for. Thanks in advance for any information or suggestions. Mike Day Confident Software y...@csi-soft.com --------------------------------------------------------------- > Subject: Re: ADRDSSU backup of VM volume > > > I guess that 510W01 was never formatted with CPVOL. Because, CPVOL is > supposed to not only create CP's allocation bytemap, but also a VTOC telling > z/OS (& co) that the disk is full. > So, > > > 1. Assure you have no minidisk on 510W01 starting in cylinder 0 (you can > ignore the minidisk of user $ALLOC$) > 2. Run ICKDSF, press enter twice (to indicate CONSOLE as in- and output > > > 1. Link to a FULLPACK overlay on 510W01, or use DEFINE MDISK: > cp define mdisk 1234 0 end 510W01 > > 2. Verify that there is no CP area on the disk (it should not, otherwise CPVOL > would have created a dummy VTOC, but you wouldn't like to loose a CP area). > Run > cpvol list unit(1234) verify(510W01) > I expect it will tell: ICK33001I 510W01 CYLINDER ZERO NOT IN CP FORMAT. If it > would -unexpectedly- list CP areas (SPOL, PAGE, DRCT, TEMP, ... stop here. > > 3. Format cylinder 0: > cpvol format unit(1234) verify(510W01) range(0,0) ) volid(510W01) > 4. END > > 3. DETACH 1234
