Dell PowerVault ME5 Series Storage System CLI Reference Guide

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show volume-statistics


Description	Shows live performance statistics for all or specified volumes. For each volume these statistics quantify I/O operations between hosts and the volume. For example, each time a host writes to a volume’s cache, the volume’s statistics are adjusted. For volume performance statistics, the system samples live data every 15 seconds. Statistics shown only in API output are described in API basetype properties.
Minimum role	monitor
Syntax	show volume-statistics [<volumes>]
Parameters	<volumes> Optional. A comma-separated list of the names or serial numbers of the volumes for which to show information. A name that includes a space must be enclosed in double quotes. If this parameter is omitted, information is shown for all volumes.
Output	Name The name of the volume. Serial Number The serial number of the volume. 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. Allocated Pages The number of pages allocated to the volume. % Performance The percentage of volume capacity occupied by data in the Performance tier. % Standard The percentage of volume capacity occupied by data in the Standard tier. % Archive The percentage of volume capacity occupied by data in the Archive tier. % RC The percentage of read-cache capacity that is occupied. 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 volumes. # show volume-statistics Show live performance statistics for volume v0001. # show volume-statistics v0001
Base types	volume-statistics status
See also	reset all-statistics reset volume-statistics show volumes