Unable to build a single shared resource domain

58

Compatibility with PRM and WLM

58

Rare incompatibility with virtual partitions

59

Workloads in gWLM do not follow associated Serviceguard packages

59

Host name aliases are not supported

59

Making a configuration change to a large SRD is slow

59

Events for gWLM CPU migration can affect System Insight Manager CMS performance

59

Deleting workloads takes a long time

60

Integrity VM prevents discovery of psets and fss groups

60

Only workloads with managed siblings can be added to SRDs with nested partitions

60

Configurations with Psets nested in virtual partitions rejected with vPars versions earlier than vPars

A.03.05

60

Information error during shutdown

61

Managing fss groups on systems with psets restricts fss groups

61

Custom metrics lost on redeploy

61

Process placement using psrset is ignored

61

iCAP compliance warning

62

Major issues

62

gWLM fails to start with certain time zone settings

62

gWLM commands core dump

62

Multiple time changes on CMS might render gWLM unusable

62

PHKL_39587 patch required on HP-UX 11i v3 Integrity VM hosts

62

Full database transaction log

62

Documentation or minor issues

63

SRDs defined when system was non-iCAP are unable to use TiCAP later

63

Warning message displayed on non-partitionable machines

63

Remove old configuration data from the gWLM database

63

Cell-local processors and iCAP environment

64

CMS is slow to respond

64

Combining psets and virtual partitions

65

Error during discovery of compartments

65

Modifying Java while gWLM is running

65

Missing or unexpected historical data (system clocks differ)

66

Sample missing at start or end of gwlmreport output

66

Workload with fixed policy gets more resources than requested

66

Only one SRD is allowed to be deployed

66

SRD deployment times out and displays a blank screen

67

Application hangs in fss group

67

Scripts not placed in correct workloads

67

Processes moved to default pset or default fss group

67

Sizes/allocations less than policy minimums for Virtual Machines

67

Changes in sizes in Discovery

68

Starting management of monitored workloads with pset compartments

68

Unable to remove workload from nested partitions SRD

68

Discovery does not show current information for stopped virtual machines

68

Configuration of agent and CMS not synchronized

68

Missing historical data (gWLM CMS daemon/service restarted)

69

Missing workload application criteria after gWLM and HPSIM service restart

69

Negative current size for NONVM

69

Unmanaging a VM or vPar that is ON leaves SRD undeployed

70

Excluding a VM or vPar that is ON during the modification of the SRD leaves the SRD

 

undeployed

70

Index

71

Contents 5

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HP UX 11i Workload Management (gWLM/WLM) Software manual Index

UX 11i Workload Management (gWLM/WLM) Software specifications

HP-UX 11i Workload Management (gWLM/WLM) software is an integral component of HP's premier UNIX operating system, designed to enhance system performance and resource management across diverse workloads. This advanced tool allows system administrators to monitor, control, and allocate resources effectively to achieve optimal performance, reliability, and service levels in enterprise environments.

One of the main features of gWLM/WLM is its ability to classify workloads and manage them according to specific policies set by the administrator. By using service level objectives (SLOs), administrators can define the performance criteria for various applications and workloads. gWLM continuously tracks these workloads, ensuring that they adhere to the defined SLOs, thus maintaining a high level of application performance.

The software employs resource pools, which segment resources such as CPU, memory, and I/O bandwidth among different workloads based on predefined priorities. This capability ensures that critical applications receive the resources they require, even during peak usage periods, thereby preventing resource starvation that could lead to system slowdowns or crashes.

Another significant characteristic of gWLM/WLM is its real-time monitoring and reporting capabilities. The software provides detailed insights into resource utilization, workload performance, and system health. Administrators can access this information through a user-friendly interface, allowing for informed decision-making and proactive management.

Integration with HP Serviceguard adds another layer of functionality, enabling high availability for critical applications. gWLM can orchestrate workload migration to ensure that service levels are maintained, even in the event of hardware failures or resource contention.

The technology behind gWLM/WLM is built on advanced algorithms that leverage historical data and predictive modeling to optimize resource allocation dynamically. This means that as workloads change, the system can automatically adjust resource distribution to meet performance targets without the need for constant manual intervention.

gWLM also supports integration with various enterprise management tools, enabling administrators to implement comprehensive monitoring and management strategies across the IT infrastructure. The scalability of gWLM allows organizations of all sizes to benefit from its robust workload management features, ensuring that they can adapt to changing demands in their operational environments.

In summary, HP-UX 11i Workload Management software offers a sophisticated solution for optimizing resource utilization, managing workloads effectively, and maintaining high performance in complex enterprise environments. Its comprehensive features and technologies make it an essential tool for any organization seeking to enhance their IT operations.