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The HCI platform is the infrastructure of business systems, and its upgrade process is relatively complicated. Arrange technical support engineer to ensure a smooth upgrade. During the upgrade, a team must be assigned to troubleshoot issues at different upgrade stages and confirm whether rollback is required. The specific rollback scenarios and upgrade stages are shown in the table below (rollback must be performed under the guidance of the R&D personnel):
| Item |
Impacts on Services |
Rollback Mechanism |
| aSecurity upgrade |
None |
Cancel the upgrade for rollback |
| aNI upgrade |
None |
Cancel the upgrade for rollback |
| Environment check before upgrading HCI |
None |
N/A |
| Upload/Distribute update package |
None |
Cancel the upgrade for rollback |
| Pre-upgrade check |
None |
Cancel the upgrade for rollback |
| Enable Maintenance Mode for the cluster |
None |
Disable Maintenance Mode for the cluster |
| Control plane active upgrade |
None |
Cancel the upgrade for rollback |
| VM active upgrade |
IO fluctuation for 1 second |
Cancel the upgrade for rollback |
| Virtual storage active upgrade |
IO fluctuation for 1-3 seconds |
Cancel the upgrade for rollback |
| Active upgrade for virtual network |
IO fluctuation for 1 second |
Cancel the upgrade for rollback |
| Apply storage features of the new version |
None |
Perform rollback according to the actual situation |
| Check business |
Depending on the check method |
N/A |
| License after upgrade |
None |
Revoke license |
1. If the current version is earlier than 5.8.6/6.7.0 and needs to be upgraded to a version later than 5.8.6/6.7.0, contact a Sangfor technical support representative in advance to ensure a smooth upgrade.
2. If the HCI upgrade fails, do not close the upgrade page and contact a Sangfor technical support representative for rollback.
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