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I Have a cluster with 8 ESXi 67 servers (1.5TB physical RAM each) containing about 400 VMs
one particular vm is a MSSQL server with 80GB RAM, 16 CPU
~59 GB memory active
~28.61 GHz CPU USAGE
the DBA is constantly requesting to add more RAM to that machine as he is claiming that the machine performance are slow due to lack or memory (low PLE).
my questions are:
what are the disadvantages of giving large amount or virtual memory to a single vm machine?
is there a way to check if virtual memory is actually the bottleneck from the vm perspective?
thanks
T