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AIX Workload Manager: Give your Critical Applications the Resources They Deserve
Figure 1
Workload Manager in AIX 5L helps you:
- Ensure that critical applications are not impacted by less important jobs in the system during peak demands
- Manage CPU, Memory, and Disk I/O bandwidth
- Allocate resources using minimum and maximum percentage limits, shares, or a combination of both
- Assign jobs to classes on the basis of user/group ownership, application name, process type, application-assigned tags, or manual assignment
- Change night/day priorities using cron scripts
- Use passive mode for "before and after" reporting
- Reclassify existing processes dynamically
- Define subclasses to increase granularity and delegate subclass management
- Implement effective server consolidation.
AIX Workload Manager (WLM), a feature included in base AIX 5L, provides a policy-based method for managing RS/6000 and pSeries system workloads and resources.
WLM delivers automated resource administration for multiple applications running on a single server. This capability helps to ensure that critical customer applications are not impacted by the resource requirements of less critical jobs in the system. This feature allows organizations to take advantage of server consolidation, and reap the cost and management benefits associated with centralized systems administration.
The policy-based architecture of Workload Manager allows systems administrators to spend less time on routine workload management tasks by automatically applying individually tailored resource allocation profiles.
Use Web-based System Manager’s graphical interface or SMIT menus to manage WLM attributes. Passive mode lets you collect data on current resource usage for your defined job classes before putting your resource allocations into effect. Built-in checking functions help ensure that class assignment rules work properly.
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