Before the Upgrade
Upgrade Impacts
- Do not perform other maintenance operations during the upgrade.
- Services are interrupted during the software upgrade.
Precautions
Table 1 describes the precautions for the upgrade.
No. |
Description |
|---|---|
1 |
Before the upgrade, read this document carefully to ensure that you have learned all the content. |
2 |
To reduce the impact on services, switch services to other nodes or stop services before the upgrade. |
3 |
After the upgrade, ensure that all software versions meet the version mapping requirements. |
4 |
If you need to roll back from a later version to an earlier version, uninstall the later version and install the required version. |
5 |
By default, the version to which the latest soft link points in the installation directory is upgraded. |
Upgrade Process
- If the driver and firmware match the CANN version, CANN can be upgraded independently. For details about the mapping between the driver and firmware and CANN, click CANN and select the corresponding version to view the version mapping table in the release notes.
- If the firmware and driver need to be upgraded at the same time, upgrade them in the sequence of firmware > driver > CANN.
Parent topic: Upgrade