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 |
During the CANN upgrade, the version to which the CANN soft link points in the installation directory is upgraded by default. |
Upgrade Process
- If the driver, firmware, and CANN software are matched, you can upgrade the CANN software separately. For details about the version mapping, see the Release Notes.
- If the firmware and driver need to be upgraded at the same time, upgrade the firmware first, then the driver, and finally CANN.
Parent topic: Upgrade