Suddenly this morning I'm having trouble formatting a 3390-9 in compatibility mode. After formatting the device under VM with cpfmtxa and examining the vtoc with IEHLIST, it is as expected, it tells me there is a permanent I/O error.
Attaching the device to a guest and formatting with: dasdfmt -v -b 4096 -d cdl -f /dev/dasdg -l ncial5 Retrieving disk geometry... Drive Geometry: 10017 Cylinders * 15 Heads = 150255 Tracks I am going to format the device /dev/dasdg in the following way: Device number of device : 0x204 Labelling device : yes Disk label : VOL1 Disk identifier : NCIAL5 Extent start (trk no) : 0 Extent end (trk no) : 150254 Compatible Disk Layout : yes Blocksize : 4096 --->> ATTENTION! <<--- All data of that device will be lost. Type "yes" to continue, no will leave the disk untouched: yes Formatting the device. This may take a while (get yourself a coffee). Detaching the device... Invalidate first track... formatting tracks complete... Revalidate first track... Re-accessing the device... Finished formatting the device. Retrieving dasd information... ok Writing empty bootstrap... Writing label... Writing VTOC... ok Rereading the partition table... ok Re-examining the vtoc I now see valid allocation which from experience tells me a volume restore will not result in a valid volume. I've used these procedures maybe 100 times. Any ideas? Bobby Bauer Center for Information Technology National Institutes of Health Bethesda, MD 20892-5628 301-594-7474 ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
