VMware ESXi optimize NFS traffic
Obmedzenie poctu NFS mount na ESXi:
ESXi/ESX 3.x : Set NFS.MaxVolumes to 32
ESXi/ESX 4.x : Set NFS.MaxVolumes to 64
ESXi 5.0/5.1/5.5 : Set NFS.MaxVolumes to 256
ESXi 6.0/6.7/7.0 : Set NFS.MaxVolumes to 256
Default ESXi 6.7:
Zvysenie heeap memory sluziacej na obsluhu vmkernel interface. Tento parameter je vhodne zvisit pri vecsom mnozstve NFS mount:
ESXi/ESX 3.x: Set Net.TcpipHeapSize to 30
ESXi/ESX 4.x: Set Net.TcpipHeapSize to 32
ESXi 5.0/5.1/5.5: Set Net.TcpipHeapSize to 32
ESXi 6.0: Set Net.TcpipHeapSize to 32
ESXi 6.7: Set Net.TcpipHeapSize to 32
Default ESXi 6.7:
Maximalna hodnota heeap memory:
ESXi/ESX 3.x : Set Net.TcpipHeapMax to 120
ESXi/ESX 4.x: Set Net.TcpipHeapMax to 128
ESXi 5.0/5.1: Set Net.TcpipHeapMax to 128
ESXi 5.5: Set Net.TcpipHeapMax to 512
For ESXi 6.0 and ESXi 6.7, the default value for Net.TcpipHeapMax is 512M and for ESXi 7.0, it is 1024M which are sufficient and need not be increased further.
Default ESXi 6.7:
Optimalizacia NFS:
NFS.HeartbeatFrequency value of 12
NFS.HeartbeatTimeout of 5
NFS.HeartbeatMaxFailures to 10