The following table provides a general guidance on memory contention. It must be read in conjunction with the CPU contention guidance section from the previous chapter. I must emphasize that this is just a guideline, which needs to be adjusted to meet the needs of your environment.
|
Object |
Contention |
Remarks |
|---|---|---|
|
VM |
|
Because every single VM has its memory backed by the hypervisor, there will be no ballooning, swap, or compression. As a result, the value for Contention in tier 1 will be 0 percent. |
Your customers only care about their own VMs, so the numbers in the following table are for your internal targets only. You should certainly have a more stringent threshold internally. This gives you a buffer for troubleshooting.
|
Object |
Contention |
Remarks |
|---|---|---|
|
ESXi |
NA |
Please see the CPU contention guidance section from the previous chapter as the same logic applies here. |
|
Cluster |
Internal threshold:
|