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The impacts of upgrading HCI will vary depending on the upgrade method. For details, see the table below:
| Method |
Impacts on Services |
Impacts on Customer O&M |
Impacts on Customer Network |
|
Quick Upgrade |
A business system jitter will last for 3 seconds or shorter. |
O&M personnel should not log in to the platform for operation and maintenance |
None |
|
|
|
during the upgrade. |
|
|
Rolling Upgrade |
The business system performance will degrade (about 10 seconds) during migration, and I/O operations will be suspended for about 1 second. |
O&M personnel should not log in to the platform for operation and maintenance during the upgrade. The upgrade will take about 40 minutes per node. |
None |
|
Offline Upgrade |
All VMs and NFV devices must be shut down before an offline upgrade. After the upgrade, they cannot be powered on before all features take effect. The downtime will be around 1 hour. |
O&M personnel should not log in to the platform for operation and maintenance during the upgrade. |
None |
1. The production VM can work after the platform is upgraded to 6.11.1 through a quick upgrade. However, the new version driver is not activated yet. You have to enter each cluster node in Maintenance Mode and restart them one by one during off-peak hours. The relevant features are described in the table below:
| Upgrade Path |
The impacts of not restarting the host |
Remarks |
| 6.7.0_EN > 6.8.0 |
None |
None |
|
6.8.0 > 6.11.1 |
Speed optimizations for VM cold migration do not take effect. |
Changes to the kernel are not upgraded. |
| Non-ATS storage cannot be mounted. |
Changes to the driver module are not applied. |
2. After the cluster is upgraded to the target version with Active Upgrade(both Quick and Rolling Upgrade), the virtual machine is in "compatibility mode" and some functions will be restricted. It is required to enter the virtual machine details page and click the More > Upgrade VM Compatibility button. This process will restart the virtual machine to make the new version
take effect:
| |
1. Do not restart the VM directly.
2. Batch operations are supported in 6.11.1.
| Original Version |
Restricted function after Upgrade |
| 6.0.0_R5_EN |
Maximum memory support 960G Does not support editing the GuestOS of the virtual machines Does not support L3-cache Does not support disk space reclamation Does not support virtual machine anti-escape Does not support using virtio network cards when virtual machines do not have vmtools installed |
| 6.2.0_EN, 6.3.0_R1/R2_EN |
Does not support editing the GuestOS of the virtual machines Does not support L3-cache Does not support disk space reclamation Does not support virtual machine anti-escape Does not support using virtio network cards when virtual machines do not have vmtools installed |
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