REPLICA_WRITES

Description

This wait occurs on databases with snapshots. When the primary database is updated the original page must be written to any snapshots. The wait will also accumulate during DBCC CHECKDB operations as a snapshot is temporarily created internally

Resolved by

DBAs

Suggested solutions

  1. Drop any unnecessary snapshots
  2. Upgrade disks hosting snapshot data files

Additional research

Database Snapshots
Looking at Database Snapshot Performance

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