Description

For databases utilizing Availability Groups. When a secondary replica issues a backup the primary replica must have a bulk operation lock placed on it. If the lock cannot be acquired or released this wait will accumulate. Small values are expected but excessive values should be investigated

Resolved by

DBAs

Suggested solutions

1. Check the SQL Server error log for more information
2. Examine wait statistics on the instance for other Availability Group issues. Investigate accordingly

Additional research

Active Secondaries: Backup on Secondary Replicas
AlwaysOn Availability Groups Troubleshooting and Monitoring Guide

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