Working with Amazon FSx maintenance windows - Amazon FSx for Windows File Server
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Working with Amazon FSx maintenance windows

Amazon FSx for Windows File Server performs routine software patching for the Microsoft Windows Server software that it manages. The maintenance window lets you control the day and time of the week when software patching occurs. You choose the maintenance window during file system creation. If you have no time preference, a 30-minute default window is assigned.

FSx for Windows File Server lets you adjust your maintenance window to accommodate your workload and operational requirements. You can move your maintenance window as frequently as required, provided that a maintenance window is scheduled at least once every 14 days. If a patch is released and you haven’t scheduled a maintenance window within 14 days, FSx for Windows File Server proceeds with maintenance on the file system to ensure its security and reliability.

While patching is in progress, expect your Single-AZ file systems to be unavailable, typically for less than 20 minutes. Your Multi-AZ file systems remain available and automatically fail over and fail back between the preferred file server and the standby file server. For more information, see Failover process for FSx for Windows File Server. Because patching for Multi-AZ file systems involves failover and failback, any traffic to the file system during this time must be synchronized between the preferred file server and the standby file server. To reduce patching time, we recommend scheduling your maintenance window during idle periods when there's minimal load on your file system.

Note

To ensure data integrity during maintenance activity, Amazon FSx for Windows File Server completes any pending write operations to the underlying storage volumes hosting your file system before maintenance begins.

You can use the Amazon FSx Management Console, Amazon CLI, Amazon API, or one of the Amazon SDKs to change the maintenance window for your file systems.

To change the weekly maintenance window (console)

  1. Open the Amazon FSx console at https://console.amazonaws.cn/fsx/.

  2. Choose File systems in the left hand navigation column.

  3. Choose the file system that you want to change the weekly maintenance window for. The file system details page displays.

  4. Choose Administration to display the file system administration Settings panel.

  5. Choose Update to display the Change maintenance window window.

  6. Enter the new day and time that you want the weekly maintenance window to start.

  7. Choose Save to save your changes. The new maintenance start time is displayed in the Administration Settings panel.

To change the weekly maintenance window using the update-file-system CLI command, see Update a file system using the Amazon CLI.