Invalid value when create resource pool

[dingding]

i have a cluster with 2 ESX, each have 8G memory.

when i create a resource pool, i input 100000, but the error msg is (see 1.png).

when i see the resource allocation in this cluster, i see the memory unreserved value, it's just the upper limit value in the error msg.see 2.png

seems find the cause, but the question is who use the reserved memory, i have only five VM up on this cluster,

you can see memory usage in both ESX (3.png, 4.png)

[dingding]

and i have not specify special memory reservation for each VM.

4.png is here.