VMware virtual machine reserved memory is related to HA access control, disk usage capacity, respectively

VMware virtual machine reserved memory is related to HA access control, disk usage capacity, respectively

a cluster , a total of 256GB memory host,HA access control policy to allow a host failure

the current the HA runtime information is as follows:

Slot size:CPU 32MHz

Memory 8GB

Total Slots :280 (max. host capacity)

Used slots :16

Available Slots :236

Failover Slots :(1 hosts can run a single slot size VM number)

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have a VMS , no boot , the Current resource configuration of this VM is as follows, configuration memory 16GB

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Memory Reservation 8GB VMs Configuration Memory 16GB = Swap file 8GB + reserved memory 8GB

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Disk 40GB , thin provisioning

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the current disk provisioning capacity is 48GB = 40GB + Swap file 8GB, actual use 7.1GB

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Datastore capacity details, but here is no Swap file shown in 8GB

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After boot

Slot size:CPU 32MHz

Memory 8GB

Total Slots :280 (max. host capacity)

Used slots :17

Available Slots :235

Failover Slots : (1 hosts can run a single slot size VM number)

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after bootDatastoredetail, one more Swap files 8GB , and a VMM overhead 114MB = 0.1GB

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after booting, the disk provisioning capacity is determined by 40GB into 48GB = 40GB + Swap file 8GB

actual usage capacity is determined by 7.1GB into 15.21GB = 7.1GB + Swap file 8GB + VMM overhead 0.1GB

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The power-on state adjusts the memory reserve from 8GB to 16GB

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at this point, datastore No change

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at this point, memory is reserved for 16GB with the VMS allocated memory is equal

VMS the configuration Memory 16GB = Swap file 0GB + Reserved Memory 16GB

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at this point, the disk provisioning capacity is determined by 48GB = 40GB + Swap file 8GB, into 40GB = 40GB + Swap file 0GB

actual usage capacity is determined by 15.21GB = 7.1GB + Swap file 8GB + VMM overhead 0.1GB

into 7.21GB = 7.1GB + + VMM overhead 0.1GB + Swap 0GB

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HA Run status changes due to VM reserved memory changes

This is because the memory value in the slot size is determined by the VM 's reserved memory, which rises from 8GB to 16GB,

Slot size:CPU 32MHz

Memory 16GB

Total slots :Max (max. capacity)

Used slots :17

Available Slots :118

Failover Slots : (1 hosts can run a single slot size VM number)

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As a result, the total number of cluster ha can be protected by fewer VMs, reduced from the original platform to the first .

VMware virtual machine reserved memory is related to HA access control, disk usage capacity, respectively