Instance volumes on LUN
This mode shows I/O for the instance volumes on a specific LUN.
Flex platform collects the I/O stats for the storage attached to an application instance and attributes them to that instance by GUID, volume name, and volume type. Use instance volume I/O metrics to validate performance, troubleshoot slowdowns, and confirm that a workload is meeting its SLA.
The following raw counters are collected per instance, per volume, and exposed through the metrics API:
Table:
Metric name | Description |
|---|---|
flex_volume_reads_total | Total read operations for the volume |
flex_volume_writes_total | Total write operations for the volume |
flex_volume_reads_bytes_total | Total bytes read from the volume |
flex_volume_writes_bytes_total | Total bytes written to the volume |
From these counters, Flex Appliance derives the following per-volume values, which are displayed on the tab.
Read IOPS and Write IOPS
Read throughput and Write throughput (MB/s)
Latency and queue depth are not available for instance volumes.