On Wednesday, 03/30/2011 at 01:44 EDT, "Thompson, Michael E" <michael_thomp...@uhc.com> wrote: > We are attempting to enable HyperPAV aliases on a DS8700 to a z/M 6.1 > system. The Dasd Subsystem people and the people that control the HCD > that the definitions are all proper from their standpoint. However when > I issue the Q PAV command I get "There are no Parallel Access Volume > devices known to this system ". I have been told that there no > definitions I need to make from a zVM standpoint to detect these > aliases. If the DS8700 and the HCD are defined correctly I should be > able to see the devices when I do the Q PAV. Is this correct? > Here are displays I did on the associated SSID. > q cu dasd fa00 dev > DASD CU FA00 DEVICES: > F800 F801 F802 F803 F804 F805 F806 F807 > F808 F809 F80A F80B F80C F80D F80E F80F > Ready; T=0.01/0.01 11:30:24 > q cu dasd fa00 al > DASD CU FA00 HAS NO ASSOCIATED ALIASES > Ready; T=0.01/0.01 11:30:31 > q cu dasd fa00 pavm > DASD CU FA00 CURRENTLY HYPERPAV, HYPERPAV ALLOWED > Ready; T=0.01/0.01 11:30:57
Instead of querying the control unit, you need to QUERY PAV ALL. HyperPAVs are not associated with a base device until an I/O is performed, and that association only lasts for the duration of that I/O. Hence the failure of QUERY CU DASD ALIAS to give you anything useful. Instead, HyperPAVs are in "pools" that are selected by CP for association with a base device in the same pool. QUERY DASD DETAILS will tell you the pool associated with a specific base or alias address.' It's that use of the word "associated" that needs to be looked at when thinking about PAV vs HyperPAV. Alan Altmark z/VM and Linux on System z Consultant IBM System Lab Services and Training 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/
