HPE XP7 User Manual page 36

Command ===>
Definition data set
Definition name
Description
Select one of the
following options. . . . .
4. On the Service Coefficient/Service Definition Options screen, complete the following:
• For Dynamic alias management, choose the mode.
Values:
- Yes: Sets the WLM mode to goal mode. In goal mode, the number of alias devices assigned to
each PAV base device can dynamically increase or decrease based on the number of I/O requests
to each device.
- No: Sets the WLM mode to compatibility mode. In compatibility mode, the number of alias devices
assigned to each PAV base device remains the same, even when the number of I/O requests to
each device changes.
Default: Yes
• For I/O priority management, enter a priority. The effect of this field setting depends on the setting
for Dynamic alias management.
The following table shows how the setting of for these items controls whether the Dynamic Alias
Algorithm is in effect.
Dynamic Alias
Management
No
No
Yes
Yes
Coefficients/Options
36 Preparing for Parallel Access Volumes operations
. . : none
. . . . . STANDARD
. . . . . . . Standard Definition
8
I/O Priority Management Dynamic Alias Algorithm in Effect
No
Yes
No
Yes
Notes Options
(Required)
1. Policies
2. Workloads
3. Resource Groups
4. Service Classes
5. Classification Groups
6. Classification Rules
7. Report Classes
8. Service Coefficients/Options
9. Application Environments
10. Scheduling Environments
None (static PAV only)
None (static PAV only)
Efficiency only
Both efficiency and goal
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