> [!NOTE] ![[assets/wl_client_waitforstandbyconfirmation.png|256]] > > | | | > | :--- | :--- | > | **Wait Category** | Client | > | **Mechanism** | `SyncRep` | > | **Operations** | [[Operations/Tuple/ModifyTable]], [[Operations/Distributed/Redistribute]] | > | **Resources** | [[Resources/Network|Network]], [[Resources/disk IO]] | > > **Physical Durability Consensus Barrier**. While `IPC:SyncRep` is the generic wait event for synchronous replication, `Client:WaitForStandbyConfirmation` specifically tracks the time spent waiting for the network round-trip and the remote disk I/O confirmation from a physical standby.