vSphere 5: Memory share calculation for mem.minfreepct
While I was reading up the vSphere 5 Clustering Technical Deep Dive book by Duncan Epping and Frank Denneman, I came across this section which took me to awhile to understand the calculation for the math part. This section on memory share which has been changed in vSphere 5 which is also written in Frank Denneman, Mem.MinFreePct sliding scale function. The example is as below: Let’s use an example to explore the savings of the sliding scale technique. On a server configured with 96GB RAM, the MinFreePct threshold will be set at 1597.6MB, opposed to 5898.24MB if 6% was used for the complete range 96GB. Free memory state Threshold Range Result High 6% 0-4GB 245.96MB 4% 4-12GB 327.84MB 2% 12-28GB 696.32MB 1% Remaining memory 696.32MB Total High Threshold 1597.60MB I was trying to get the calculation for the Result column and thought to elaborate it on a clearer picture which a believe some are confused like myself. The first 0-4GB wi...