Expanding memory for SCVM

Perform the following operations on each SCVM:

Note:

The Meta Leader node should be the last to be operated on. Execute the zbs-tool service list command on any node within the cluster to confirm the Meta Leader node.

1. Set the SCVM node to maintenance mode.

   Log into AOC, select the host where the SCVM resides from the cluster's host list, click the ellipsis (...) on the right, and choose Enter maintenance mode.

2. In vCenter Server, right-click the SCVM node and select Power > Shut Down Guest OS to shut down the operating system of the SCVM virtual machine.

3. In vCenter Server, right-click the SCVM node and select Edit Settings to adjust the memory size to the requirement of the target version cluster. Click OK to save.

   Information:

   If the save attempt fails after adjusting the memory and a The specified parameter is incorrect: spec.memoryAllocation error prompt appears in vCenter, follow these steps:

   1. After adjusting memory to the target capacity, switch to the VM Options page, set the VM latency sensitivity to Normal in the Advanced option, and click OK to save.
   2. Reopen the Edit Settings page for the SCVM virtual machine, switch to the VM Options tab, and change the virtual machine latency sensitivity back to High under advanced options. Then, click OK to save again.

4. For this SCVM node in vCenter Server, right-click and select Power > Power On to start.

5. After logging in to the SCVM backend via SSH, run the command free -h to confirm the memory expansion is effective.

6. Exit maintenance mode.

   1. On the host overview page of AOC, check the duration for which the current host has been in maintenance mode. Click Exit maintenance mode on the right side of the prompt message.

   2. The system will open a check dialog and initiate a self-check before exiting maintenance mode. Once the check is complete, the results for all self-check items are returned.

      • If all check items meet the requirements, the host is allowed to exit maintenance mode.

      • If some checks fail, refer to Exiting maintenance mode to make adjustments, then attempt to exit the maintenance mode again.