Host metrics
Unisphere collects and displays metrics for hosts.
Within the PM metrics section, V4 is used to denote that the metric is supported only by a storage system (array) running PowerMaxOS 10 (6079). V3 is used to denote that the metric is supported only by a storage system (array) running HYPERMAX OS 5977 or PowerMaxOS 5978. Metrics without the denotation are supported by all storage systems (arrays).
The following table lists all metrics that are available for hosts.
| Metric | Description |
|---|---|
| Bandwidth Limit | The initiator bandwidth levels |
| Bandwidth Limit Time Exceeded | Sum of the number of seconds that the dir:port:initiator combination was running with maximum quotas |
| Host IOs/sec | The total number of host read I/O and write I/O operations performed each second by the host. |
| Host Reads/sec | The total number of host read I/O operations performed each second by the host |
| Host Throughput | The size of the data transfer from the host in MBs per second |
| Host Throughput Read | Cumulative number of host MBs read per second |
| Host Throughput Written | Cumulative number of host MBs written per second |
| Host Writes/sec | The total number of host write I/O operations performed each second by the host |
| Read RT | The average time that it took the system to serve one read I/O for this host |
| Response Time | The average response time for the reads and writes |
| Syscall Count/sec | The total number of calls seen by this host |
| Write RT | The average time that it took the system to serve one write I/O for this host |