HP XP7 Storage - Manual (Page 24)

Enabling Hyper Parallel Access Volumes from z/OS on z/VM
To enable HPAV from the z/OS on z/VM, HPAV must be enabled on the z/VM and on the z/OS.
1.
Run the following command from z/OS system console to all base devices in the corresponding
CU to take those base devices offline:
V base_device_number1 base_device_number2,OFFLINE
2. Run the following commands from z/VM system console to all alias devices that are used for
HPAV in the corresponding CU to enable HPAV:
DET alias_device_number1-alias_device_number2
VARY OFFLINE alias_device_number1-alias_device_number2
SET CU HYPERPAV ssid1-ssid2
VARY ONLINE alias_device_number1-alias_device_number2
ATT alias_device_number1-alias_device_number2*
3. Enable HPAV on the z/OS by running the following command from the host system console:
SETIOS HYPERPAV=YES
4. Run the following command from the system console of z/OS to all base devices in the
corresponding CU to make those base devices online:
V base_device_number1-base_device_number2,ONLINE
MIH timer value setting workflow
Set the MIH timer value for PAV operations. You can set the value when you install IPL or after
installing IPL.
Use the following process to set the MIH timer value:
1. During IPL installation, use the MIH parameter in the IECIOSxx parmlib member. Set the MIH
timer value in MVS/ESA® or z/OS® to 30 seconds.
For the complete syntax of this parameter, see the IBM document MVS Initialization and Tuning
Reference, SC28-1752.
2. Run the SETIOS system command.
For the complete syntax of this command, see the IBM document OS/390® MVS System
Commands, GC28-1781.
HP Confidential 24 Preparing for Parallel Access Volumes operations