vRealize Network Insight Cloud collects datastore metrics to learn about storage space use and to check metric trends to identify spikes or abnormal growth.

Metric Name Metric API Name Decription
Capacity datastore.capacity.absolute.latest.bytes Total storage capacity of the datastore.
Committed Space datastore.committed.absolute.latest.bytes Storage space on the datastore that is used by the virtual machine to store disks, logs, snapshots, and configuration files.
Free Space datastore.freespace.absolute.latest.bytes Free space available on the datastore.
Free Space Percent (%) datastore.freespace.absolute.latest.percent Ratio of free storage space to the total storage capacity on the datastore.
Provisioned Space datastore.provisioned.absolute.latest.bytes Storage capacity allocated for all VMs on the datastore.
Provisioned Space Percent (%) datastore.provisioned.absolute.latest.percent Ratio of the provisioned space to the total storage capacity for the datastore.
Read IOPS datastore.numberReadAveraged.rate.average.number Average number of read commands issued per second on the datastore.
Read Latency (ms) datastore.weightedTotalReadLatency.absolute.average.millisecond Average read latency over a period of 24 hours.
Read Rate (kbps) datastore.read.rate.average.kiloBytesPerSecond Read throughput averaged over a period of 24 hours.
RW IOPS datastore.numberRWAveraged.rate.average.number Average number of read and write commands issued per second over a period of 24 hours.
RW Rate (kbps) datastore.usage.rate.average.kiloBytesPerSecond Read and write throughput averaged over a period of 24 hours.
Uncommitted Space datastore.uncommitted.absolute.latest.bytes Additional storage space that is potentially used by the VM on the datastore. This storage space is needed for thin-provisioned VMs to allow lazily allocated disks to expand or storage for swap.
Used Space datastore.usedspace.absolute.latest.bytes Storage capacity used by VMs on the datastore.
Used Space Percent (%) datastore.usedspace.absolute.latest.percent Ratio of used storage capacity to the total storage capacity on the datastore.
Write IOPS datastore.numberWriteAveraged.rate.average.number Average number of write commands issued per second on the datastore.
Write Latency (ms) datastore.weightedTotalWriteLatency.absolute.average.millisecond Average write latency over a period of 24 hours.
Write Rate (kbps) datastore.write.rate.average.kiloBytesPerSecond Write throughput averaged over a period of 24 hours.