Update
DSM Update
Periodically, Synology releases free DSM updates. Updates may include new features, function improvements, and performance enhancements. DSM updates may be in the form of minor or major updates. The system displays a message next to Status if the update is minor. When there are major DSM version releases, there will be a section under Status providing information about this release as well as a download link to the major update version. Generally, minor updates include critical bug fixes and security patches for system stability; while major updates mainly include brand-new features and performance enhancement, in addition to critical bug fixes and security patches.
Note:
- Upgrading DSM does not affect the data on the DiskStation. However, to ensure data security, it is strongly recommended that you back up your data before you start.
- After you upgrade to new DSM update versions, you cannot downgrade to the previous DSM update versions.
- Synology NAS automatically runs a checklist to determine whether the new version are relevant to your system based on the services and system configurations. Therefore, available updates and latest versions may vary depending on your current DSM configurations.
Perform Manual DSM Update
You can download the .pat update file from Synology's Download Center and perform manual DSM update.
To perform manual DSM update:
- Visit Download Center to download new DSM update to your local computer. The .pat file does not need to be extracted.
- Click Manual DSM Update to enter Manual DSM Update Page
- Click Browse to select the update file.
- Click Apply to start to update your DSM. The system will reboot automatically when the update completes.
Troubleshooting:
If you cannot update DSM, the following suggestions might help solve your problem:
- Check if the upgrading process was interrupted by users, or other unexpected events, such as a power failure.
- Check the DSM version. You can only update the system with a newer DSM version.
- Download the DSM update again because the update file might be corrupted.
If the problem remains, please contact Synology's Technical Support.
Set Up Automatic DSM Update and Installation Preferences
To configure your update installation settings and check schedule, click Update settings.
To have the system notify you when there is new DSM update available:
The Notify me and let me decide whether to install the new update option allows the system to only notify you when there is a new version available. You may choose whether to download the update after receiving the notification.
A desktop notification will be displayed when a DSM update is downloaded and ready to be installed. To stop DSM from being updated automatically, you can cancel it in the desktop notification. Moreover, DSM updates will be installed before the scheduled shutdown if you have enabled Shutdown at Power Schedule.
To automatically install the new DSM update:
The Automatically install the new update option allows the system to automatically install the new DSM update if the result of the check finds that there is a new update available. This only applies to minor updates shown in Status and not to major updates.
To set up check schedule:
The Check schedule lets you decide when the system should check for available updates. Select which days of the week and the time of day on the specified days to check for updates. For example, on Tuesdays and Fridays at 11:00.
Major Update
When there is a major DSM version available, this information will be displayed at the bottom of the DSM Update section. You will be able to download the major update version by clicking Download. After download has finished, click Update Now to complete the process.
Troubleshooting:
If you see error messages in red text during checking or downloading the new DSM, please check the following:
- Make sure your DiskStation is connected to the Internet.
- Synology's download server might be busy at the moment. Retrying download at a later time might solve the problem.
If the problem remains, please contact Synology's Technical Support.
Expansion Unit Firmware Update
If you have SAS expansion units, a firmware update may be required from time to time. The system will automatically check for firmware updates and display one of these statuses: Need to update firmware immediately, The firmware of all expansion units is up-to-date, or No connected expansion unit.
- Need to update firmware immediately: When this is displayed, we highly recommend updating your expansion unit firmware as soon as possible. Your expansion units will be unavailable until the update is completed. You are also unable to create new volumes on the expansion units during this time.
- The firmware of all expansion units is up-to-date: This indicates that your system has completed the update and is operating in a stable environment.
- No connected expansion unit: This indicates that your DiskStation does not have any expansion units connected. Therefore, there is no need for firmware updates.
Important: Normally, upgrading firmware of expansion unit does not affect the data on the DiskStation. However, to ensure data security, it is strongly recommended that you back up your data before you start.
Note:
- Expansion unit firmware update is required for specific SAS models only.
- Expansion unit firmware update is only available on DSM 6.2.2 or above.
To perform expansion unit firmware update:
Performing expansion unit firmware update only takes a few minutes and does not require restarting your system. Other services you are running will not be interrupted during the update.
- Click Update Now to start the update.
- A warning dialog will appear. Select either of the following options:
- To continue with the update, click OK. A progress bar will appear.
- To update at a later time, click Cancel.
- The system will display one of the following desktop notifications to inform you whether the update is successful: Expansion unit firmware update completed or Expansion unit firmware update failed.
- One of the below status messages will be shown in Status:
- The firmware of all expansion units is up-to-date: This message is shown when the update is completed and successful. The system is operating in a stable environment and your expansion units are available for use.
- Update failed: If expansion unit firmware update failed, click Contact Support to resolve your issue.
Note:
- To ensure system stability, the service of expansion units is unavailable when the system detects that firmware update is required. The service will become available again once firmware update is completed.
- If expansion unit firmware update failed, please do not try to restart or remove drives or expansion units. To fix this issue, please refer to this article and contact Synology's Technical Support for further assistance.