The existing on both source and target to increase the number of CPUS and memory of the VA.
Change Procedure:
1. Are you currently running to make sure there are no backup or replication.
2. Open the vsphere client.
3. Select the target of the VA-left-click on the power -> Power Off. Verify that the VA is powered down.
Left-click to select the target of the VA 4. In the Settings and select Edit.
5. Increase the memory to 8 GB.
6. Increase the CPU to 4.
7. Press OK.
8. Power on the VA.
After the system boots to the manually or schedule from the VA replication process.
