| The wait type FCB_REPLICA_READ is ranked #284 by Stedman Solutions and Database Health Monitor. Wait statistics, in the context of SQL Server, refer to the amount of time that a query spends waiting to access data in the database. When a client application requests data from the database, the request is placed in a queue and the client application must wait for its turn to access the data. The time that the query spends waiting is called a "wait" and is tracked by SQL Server. This information can be used to identify potential performance bottlenecks and optimize the performance of the database. Wait statistics are commonly used by database administrators to diagnose and troubleshoot performance issues in SQL Server. The FCB_REPLICA_READ wait type in SQL Server is a type of wait that occurs when a task is waiting for a read operation to complete on a database file. In SQL Server, database files are organized into units called file control blocks (FCBs), and the FCB_REPLICA_READ wait type occurs when a task is waiting for an FCB to be read from a database file. This wait type is typically caused by a high volume of read operations on a database, which can put a strain on the system and cause performance issues. It can also be caused by a problem with the database file itself, such as if it is corrupted or damaged in some way. To resolve this issue, it is important to identify the cause of the FCB_REPLICA_READ wait type and take steps to address it. This may involve tuning the database to reduce the number of read operations, optimizing the database file itself, or taking other corrective action. In summary, the FCB_REPLICA_READ wait type in SQL Server is a type of wait that occurs when a task is waiting for a read operation to complete on a database file. It can be caused by a high volume of read operations or a problem with the database file, and it can lead to performance issues if it occurs frequently. To resolve this issue, it is important to identify the cause and take appropriate action. Applies toRelated WaitsFCB_REPLICA_WRITESee AlsoAll Wait Types |  |