I hope you enjoyed this short travel down memory lane. In this chapter, we discussed memory counters in both vCenter and vRealize Operations. We covered what they mean and what values you should expect for a healthy environment. The relationship between metrics were also explained. We provided screenshots to make the learning easier and added real-world examples.

I'd like to emphasize again that hypervisor does not have visibility inside the Guest OS memory. Be careful when performing right sizing based solely on the data from the hypervisor. For an application that manages its own memory, this can result in poor performance due to excessive paging.

I also shared a tip that by separating the page file into its own vmdk file, you get some level of visibility on whether the Guest OS is reading or writing into the file, as it gets translated into disk activity.

We have now covered both CPU and memory, which means we are done with compute. Let's now go through the Network counters in the...