eG Monitoring
 

Measures reported by vCldDatastoreTest

The vCloud Director relies heavily on vSphere datastores to provide storage for virtual machine files and other files necessary for virtual machine operations. Unavailability of a datastore or the lack of storage space in a datastore can severely hamper virtual machine operations and can consequently delay or suspend resource delivery by the vCloud Director. By keeping constant tabs on the availability and space usage by each datastore managed by the target vCloud Director Cell, this test proactively alerts you to potential space contentions on a datastore.

The measures made by this test are as follows:

Measurement Description Measurement Unit Interpretation
Total_capacity Indicates the total capacity of this datastore. GB  
Used_space Indicates the amount of space that is currently used in this datastore. GB Ideally, the value of this measure should be low. Compare the value of this measure across datastores to know which datastore is utilizing the maximum storage space.
Free_space Indicates the amount of space that is currently available for use in this datastore. GB A high value is desired for this measure. Compare the value of this measure across datastores to identify the datastore with the least free space.
Percent_usage Indicates the percentage of disk space in this datastore that is in use currently. Percent A consistent increase in the value of this measure count point to a space contention on a datastore.
Allocated_space Indicates the amount of physical space provisioned by an administrator for this datastore i.e., the storage size upto which the files can be stacked in this datastore. GB  
Percent_allocated Indicates the percentage of physical disk space that is provisioned for this datastore. Percent If a datastore shows signs of a space drain, then, you may want to check the value of this measure for that datastore to know whether it is owing to improper space allocation to that datastore.
Requested_space Indicates the amount of space requested for the functioning of the vCloud Director VMs on this datastore. GB  
Percent_requested Indicates the percentage of space requested for the functioning of the vCloud Director VMs on this datastore. Percent  
Enabled Indicates whether/not this datastore is enabled with the vCloud Director.   This measure reports a value Yes if the datastore is enabled with the vCloud Diirector and a value No if the datastore is not enabled.

The numeric values for the above mentoioned states are represented in the table below:

State Numeric Value
Yes 1
No 0

Note:

By default, this measure reports the above-mentioned States while indicating whether this datastore is enabled with the vCloud Director or not. However, in the graph of this measure, states will be represented using their corresponding numeric equivalents only.
Is_busy Indicates whether/not this datastore is busy.   This measure reports a value Yes if this datastore is busy and a value No if this datastore is not busy.

The numeric values for the above mentoioned states are represented in the table below:

State Numeric Value
Yes 1
No 0

Note:

By default, this measure reports the above-mentioned States while indicating whether the resource of this datastore is busy or not. However, in the graph of this measure, states will be represented using their corresponding numeric equivalents only.