On Thursday, 03/22/2018 at 03:20 GMT, Mariusz Walczak <mariusz.walc...@deutsche-boerse.com> wrote: > The below email is classified: Internal > > Hello, > > I'm trying to setup HyperPAV on our SLES 11.4. From documentation I read I must > define a full-pack minidisk in form: > MDISK basevdev devtype DEVNO rdev mode OR MDISK basevdev devtype 0 END > volser mode > > I used DEVNO and I believe I was able to setup everting right (I see alias > device in lsdasd -u). However, when I run dasdfmt on base , I lose VM label > from DASD. Is there a way to preserve label on cylinder 0 ? We reference them > in other programs.
Sorry, no. A fullpack minidisk overlays real cylinder zero and the guest can change the label. For those who do NOT use GDPS, I recommend that you - Use DEVNO minidisks - Specify device numbers on CP_OWNED statements - Replace all USER_VOLUME_LIST and USER_VOLUME_INCLUDE statements with the USER_VOLUME_RDEV statement, eliminating those referencing fullpack user volumes. GDPS users are discouraged from excessive use of device numbers, so the above will not work for you. Instead, SITE1 and SITE2 CONFIG should ensure that fullpack user volumes are SENSED_BUT_OFFLINE or OFFLINE_AT_IPL in SYSTEM CONFIG, and then ATTACHed to SYSTEM in AUTOLOG1 once the system is up, but before you start any virtual machines with fullpack minis. All so that you are insulated from guest-initiated volser changes with no worries about accidental or malicious duplicate volsers. Without these precautions, your system can be compromised by duplicate volsers. 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/
