Performance of Query and Insertion (QI) of the DDB is Slow

Article ID: 53894

Article Type: Troubleshooting

Last Modified:

Data protection jobs using Deduplication are taking longer than usual/expected.

Symptoms

The performance of the Query and Insertion (QI) of the DDB is slow during backups.

Causes

The slow performance of QI time indicates that the DDB is highly loaded or on a sub-optimal disk or MediaAgent.

If the QI of the DDB is suboptimal or reaching or exceeding the threshold limit (two milliseconds), the following effects might take place:

You can view the QI performance and threshold limit of the DDB from the Deduplication Database summary or DDB Partition summary. For more information, see Monitoring Deduplication Database or Monitoring Deduplication Database Partition.

Resolution

Make sure that your DDB is hosted on the recommended configuration referenced in Deduplication Building Block Guide. If DDB is hosted on the recommended configuration and the QI performance is still slow, then verify and perform the following:

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