On Monday, 07/09/2018 at 08:01 GMT, "Frank M. Ramaekers" <framaek...@ailife.com> wrote: > Outside of Linux (it's a fullpack -1 cyl minidisk--reserving the 1st cyl for > z/vm label and allocation map)? > > dasdfmt -b 4096 -d cdl -l LX0108 -p -y -f /dev/dasdi > Try 'dasdfmt --help' for more information.
Once you formatted the entire volume with CPFMTXA, it was (mostly) filled with 4096-byte records of zero, erasing all residual data in the process. But dasdfmt is going to do it again (sans the -f option, as you found), writing the label. This can be done without re-formatting all the same cylinders again, but it's not worth it for only 10K cyls. Alan Altmark Senior Managing z/VM and Linux Consultant IBM Systems Lab Services IBM Z Delivery Practice ibm.com/systems/services/labservices office: 607.429.3323 mobile; 607.321.7556 alan_altm...@us.ibm.com IBM Endicott ---------------------------------------------------------------------- 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 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
