HP XP P9500 Storage - Manual (Page 23)

4. Set the Dynamic alias management field to Yes and WLM is in goal mode. Set the field to No
and WLM is in compatibility mode. The default setting is Yes.
5. Set the I/O priority management field. The effect of this field setting depends on the Dynamic
alias management setting. As shown in the following table, the setting of both of these fields
controls whether the Dynamic Alias Algorithm is in effect.
Dynamic Alias Algorithm in Effect I/O Priority
Management
Dynamic Alias
Management
None (static Parallel Access Volumes only) NO NO
None (static Parallel Access Volumes only) YES NO
Efficiency only NO YES
Both efficiency and goal YES YES
6. If dynamic is the desired mode, verify that the DYNAMIC and WLMPAV fields are both set to
Yes in the WLM View Device Parameter / Feature Definition screen.
Enabling Hyper Parallel Access Volumes on z/OS
To enable Hyper Parallel Access Volumes on the z/OS, issue the following command from the
host system console:
SETIOS HYPERPAV=YES
An example of the command is shown below.
NOTE: The SETIOS command can be set for each logical partition (LPAR).
Enabling Hyper Parallel Access Volumes from z/OS on z/VM
To enable Hyper Parallel Access Volumes from the z/OS on z/VM, Hyper Parallel Access Volumes
must be enabled on the z/VM and on the z/OS.
Procedure 5 To enable Hyper Parallel Access Volumes from z/OS on z/VM:
1. Issue 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
Enabling Hyper Parallel Access Volumes on z/OS 23