You can perform index server load balancing by running the Load Balance Index Servers workflow.
The workflow redistributes indexes across Indexing Version 2 index servers in a CommCell that share the same data paths. The indexes are moved from overloaded servers to under-utilized servers that can host the indexes.
To determine whether you need to run load balancing on Indexing Version 2 index servers, you can use the Index Server Load Report. The Index Server Load Report displays information about index load statuses, index load trends, and index size distributions across MediaAgents that are acting as Indexing Version 2 index servers in a CommCell.
Notes
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While the Load Balance Index Servers workflow runs, all jobs are suspended on servers affected by the index movement. For example, suppose that the workflow determines that it will move indexes from Server 1 to Server 2, and also from Server 3 to Server 4. While the system moves indexes from Server 1 to Server 2, only jobs on those servers will be suspended. Jobs on Server 3 and Server 4 are not affected during that time.
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If the workflow fails, the system will not run it again automatically.
Before You Begin
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Review the information in Load Balance Index Servers Workflow - Frequently Asked Questions.
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The Commvault Workflow solution must be deployed in your CommCell environment. Typically, the Workflow Engine is installed with the CommServe software. If you need to install the Workflow Engine separately, see Installing the Workflow Engine.
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Download the Load Balance Index Servers workflow from the Commvault Store. See Download Workflows from the Commvault Store.
Procedure
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From the CommCell Browser, in Workflows, right-click Load Balance Index Servers, point to All Tasks, and then click Execute.
The Load Balance Index Servers Options dialog box appears.
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From the Run workflow on list, select the workflow engine that you want to perform the workflow.
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Select one of the following modes:
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All Index Servers. This option performs index server load balancing across all index servers that share data paths.
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Within Storage Policy. This option performs index server load balancing across the index servers that share data paths as defined by a storage policy. After you select this option, the workflow will ask you to select a storage policy.
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Index Server Selection. This option performs index server load balancing on one available index server. After you select this option, the workflow will ask you to select an index server.
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To perform load balancing only on overloaded servers, select Load balance only from overloaded servers.
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Click OK.
Note
Once the job completes, it will take up to 24 hours for changes to be reflected in the Index Server Load Report.