HP-UX Workload Manager

HP-UX Workload Manager (WLM) A.03.02.02 provides goal-based workload management. This management enables automatic resource allocation and application performance management through the use of prioritized service-level objectives (SLOs). It provides this functionality by automating features of HP-UX Virtual Partitions, nPartitions, Processor Sets, and HP Process Resource Manager (PRM).

Summary of Change

What’s New for Customers Migrating from HP-UX 11i v1 September 2005?

HP-UX Workload Manager (WLM) A.03.02.02 includes the following changes:

No longer includes Process Resource Manager (PRM) in the bundle
Supports HP Integrity Virtual Machines
Communications are now secure by default
Supports finer granularity for minimum allocations to FSS groups
Supports a maximum of 256 FSS groups
Supports process placement using criteria you specify
Supports management of PSET-based workload groups in configurations also simultaneously managing virtual partitions or nPartitions
Now allows wildcards in both the file name and the alternate name in an application record
Ability to map Unix groups to workload groups
Extended regular expressions in alternate names for application records
Enhancements to wlminfo output
New keyword utility_reserve_threshold enables you to configure the minimum number of days of Temporary Instant Capacity that must be available for WLM to use that capacity
Support for Hyper-Threading in PSET-based workload groups (WLM sets the Hyper-Threading state for the default PSET, where FSS workload groups are created, to optimize workload performance.)

What’s New for Customers Migrating from HP-UX 11i v2 June 2006?

HP-UX Workload Manager (WLM) A.03.02.02 includes the following changes:

Ability to map Unix groups to workload groups
Extended regular expressions in alternate names for application records
Enhancements to wlminfo output
New keyword utility_reserve_threshold enables you to configure the minimum number of days of Temporary Instant Capacity that must be available for WLM to use that capacity

Impact

With PRM no longer in the WLM bundle, you must install PRM separately to manage FSS and PSET-based workload groups
Those accustomed to communications that are not secure will have to manually unset secure communications
More flexibility in process placement

Compatibility

There are no known compatibility issues.

Performance

Performance is improved when WLM is used properly, but can degrade when WLM is not configured appropriately.

Documentation

The wlm(5) manpage provides a list of all the manpages in its SEE ALSO section.
Further information is also available in the WLM Web site at http://www.hp.com/go/wlm (the “Information library” page provides white papers)
The following documents are available at http://docs.hp.com/hpux/netsys/index.html#HP-UX%20Workload%20Manager:
- HP-UX Workload Manager User’s Guide
- HP-UX Workload Manager A.03.02.xx Release Notes for HP-UX 11i v1, HP-UX 11i v2, and HP-UX 11i v3

Obsolescence

Not applicable.