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| Local Properties | ||
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The storage I/O resource is allocated to virtual machines based on their shares, limit and reservation. The reservation is currently exposed only at the host level for local datastores. And we do not support storage I/O resource management on resource pools.
Each virtual machine has one IOAllocationInfo object per virtual disk. For example, we can specify that a virtual machine has 500 shares on the first virtual disk, 1000 shares on the second virtual disk, etc.
Properties
| Name | Type | Description |
|---|---|---|
| limit* | xsd:long |
The utilization of a virtual machine will not exceed this limit, even
if there are available resources. This is typically used to ensure a consistent
performance of virtual machines independent of available resources.
If set to -1, then there is no fixed limit on resource usage (only
bounded by available resources and shares). The unit is number of
I/O per second.
While setting the limit for storage I/O resource, if the property is unset,
it is treated as no change and the property is not updated. While reading
back the limit information of storage I/O resource, if the property is unset,
a default value of -1 will be returned, which indicates that there is no
limit on resource usage.
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| shares* | SharesInfo |
Shares are used in case of resource contention.
The value should be within a range of 200 to 4000.
While setting shares for storage I/O resource, if the property is unset,
it is treated as no change and the property is not updated. While reading
back the shares information of storage I/O resource, if the property is unset,
a default value of level = normal,
shares = 1000 will be returned.
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| Properties inherited from DynamicData | ||
| dynamicProperty, dynamicType | ||
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