Memory is reserved for each virtual machine. A Vantage system is a distributed system and cannot be load balanced with VMware DRS. Vantage functions as a parallel system, therefore performance is based on the speed of the slowest vNode. Each ESXi host requires CPU and memory to function, so an algorithm automatically attempts to ensure ESXi has enough to function. All systems are different, and at times the CPU and memory reservations set for Vantage nodes can be too high for some ESXi hosts. If this occurs, some virtual nodes will not boot, and the vSphere Client interface displays errors to indicate which reservation is too high. To resolve this issue, you can set override values in the common.IT.properties.json properties file.
- For memory reservation, set the MemoryMBPerTPA property to be lower than the automatically calculated value.