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Dell PowerVault ME4 Series Storage System CLI Guide

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show host-port statistics


Description	Shows live performance statistics for each controller host port. For each host port these statistics quantify I/O operations through the port between a host and a volume. For example, each time a host writes to a volume’s cache, the host port’s statistics are adjusted. For host-port performance statistics, the system samples live data every 15 seconds. Statistics shown only in API output are described in API basetypes properties.
Minimum role	monitor
Syntax	show host-port-statistics [ports `ports`]
Parameters	ports `ports` Optional. Specifies a comma-separated list of port IDs for which to show information. For port syntax, see Command syntax. If this parameter is omitted, information is shown for all host ports.
Output	Durable ID The host port ID in the format hostport_`controller-ID-and-port-number`. Bps The data transfer rate, in bytes per second, calculated over the interval since these statistics were last requested or reset. This value will be zero if it has not been requested or reset since a controller restart. IOPS The input/output operations per second, calculated over the interval since these statistics were last requested or reset. This value will be zero if it has not been requested or reset since a controller restart. Reads The number of read operations since these statistics were last reset or since the controller was restarted. Writes The number of write operations since these statistics were last reset or since the controller was restarted. Data Read The amount of data read since these statistics were last reset or since the controller was restarted. Data Written The amount of data written since these statistics were last reset or since the controller was restarted. Queue Depth The number of pending I/O operations being serviced. I/O Resp Time The average response time in microseconds for read and write operations, calculated over the interval since these statistics were last requested or reset. Read Resp Time The average response time in microseconds for all read operations, calculated over the interval since these statistics were last requested or reset. Write Resp Time The average response time in microseconds for all write operations, calculated over the interval since these statistics were last requested or reset. Reset Time The date and time, in the format `year-month-day hour:minutes:seconds`, when these statistics were last reset, either by a user or by a controller restart.
Examples	Show live performance statistics for all host ports. # show host-port-statistics Show live performance statistics for host port A1. # show host-port-statistics ports a1
Basetypes	host-port-statistics status
See also	reset all-statistics show host-port-statistics show host-phy-statistics show ports