You can view information about application instance resource utilization on the application instance details page.
The following three charts are displayed at the top of the application instance page.
Storage. The storage provisioned to the application instance when it was created, as well as the amount of storage used.
Instance. For instances created from a template, this is the storage used by the current instance but does not include base image size or backups. For instances created from an installer, this is the storage used by the current instance but does not include backups.
If you see a Thin-Provisioned label for this instance, this instance is a thin-provisioned application clone. The "Storage Used" by the instance represents only the size of this application clone the base image size is counted once in the virtual datacenter's storage usage, as the base image may be shared by multiple application clones within the virtual datacenter.
The Activity tab displays several charts that show recent activity for the instance.
You can adjust the time interval displayed in the charts by selecting one an interval from the last hour to the last year.
The following activity information is displayed.
Activity Chart | Description |
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% vCPU | Average virtual CPU utilization on the cores provisioned to this instance as reported by the instance. |
Memory Load | The amount of data (in bytes) currently held in memory by this instance. This is the memory usage from the application perspective. |
Network Read Bandwidth | The amount of data received (in MBps) from the network. |
Network Write Bandwidth | The amount of data (MBps) transmitted to the network. |
You can also view storage activity by all storage disks or by selecting a specific disk. If you select a disk, an additional chart will be displayed that shows Disk Latency for the selected disk.
You can view the following storage pool information.
Storage Activity Chart | Description |
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Storage Instance |
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Storage Footprint |
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Storage Read Bandwidth |
The amount of data transferred (in MBps) outbound from the disk(s) to the node. |
Storage Write Bandwidth |
The amount of data transferred (in MBps) inbound from the node to the disk(s). |
Read IOPS | The number of read requests per second to the disk(s). |
Write IOPS | The number of write requests per second to the disk(s). |
IO Queue Length (Average Across Disks) | Outstanding I/O requests to the disk(s). |
Disk Latency | If you select a disk, an additional chart will be displayed that shows Disk Latency for the selected disk. Latency is a measure of how long it takes for a single I/O request to occur from the standpoint of the application instance. |