The problem is that the device was still online to MVS and originally had an indexed VTOC when initialized on that system. If the device is varied offline to MVS, there should be no error messages from MVS. There are some volumes that should not be online to MVS, this includes all CP_Owned volumes. Here, the MVS DASD Storage Management "manages" VM storage, too. But its only act in this capacity is to insure that the device is offline to MVS before they give it to VM, and will be offline after MVS is IPLed.. After that, it is no longer their responsibility.
When you use ICKDSF to format a volume for VM, you should specify that it is a CPVOL. Doing that will guarantee that a dummy VTOC having no free space will be included in cylinder 0. That will prevent error messages if the volume is varied on to MVS and will prevent MVS from accidentally allocating a dataset on the volume. Regards, Richard Schuh ________________________________ From: The IBM z/VM Operating System [mailto:[email protected]] On Behalf Of Bhemidhi, Ashwin Sent: Monday, June 21, 2010 8:52 AM To: [email protected] Subject: IEC606I VTOC INDEX DISABLED Hello all, I was adding a 2nd page volume LEPG2A (3390-3) to one of our newly installed z/VM 6.1 and I accidentally formatted cylinder 0 PERM. We are now getting alerts about "IEC606I VTOC INDEX DISABLED ON 5815,LEPG2A,142,00000000". The new Page volume is working on z/VM. q alloc page EXTENT EXTENT TOTAL PAGES HIGH % VOLID RDEV START END PAGES IN USE PAGE USED ------ ---- ---------- ---------- ------ ------ ------ ---- LEPG1A 5814 1 3338 600840 0 0 0% LEPG2A 5815 1 3338 600840 0 0 0% ------ ------ ---- SUMMARY 1174K 0 0% USABLE 1174K 0 0% All our DASD storage is managed from the MVS side and I am guessing that it looks for the VTOC and alerts when it cannot find one. Can I use ICKDSF to put a valid VTOC back on the DASD? Are there any pointers on this subject that I can use to get more information on? Does Device Support facility's user guide all the information that I need to do the above. Thank you, Ashwin Bhemidhi Texas Instruments Inc.
