Dell PowerVault ME5 Series Storage System CLI Reference Guide

If no parameters are specified, shows all the available types of metrics for each type of storage object that has metric fields defined.

Available metrics and applicable storage objects:

• total-avg-response-time: Average response time of an operation in microseconds. Operations include both reads and writes. Applicable objects: controller, host-port, pool, system, volume.
• total-bytes-per-second: Sum of read bytes per second and write bytes per second. Applicable objects: controller, host-port, pool, system, volume.
• total-iops: Sum of read IOPS and write IOPS. Applicable storage objects: controller, host-port, pool, system, volume.
• total-max-response-time: Sum of read maximum response time and write maximum response time. Applicable objects: controller, host-port, pool, system, volume.
• total-num-bytes: Sum of read bytes and write bytes. Applicable objects: controller, host-port, pool, system, volume.
• read-io-count: Number of read I/O operations. Applicable objects: controller, host-port, pool, system, volume
• read-ahead-ops: Number of times that read ahead pre-fetched data for host reads. Applicable objects: controller, volume.
• read-avg-queue-depth: Average number of pending read operations being serviced since the last sampling time. This value represents periods of activity only and excludes periods of inactivity. Applicable objects: host-port, volume.
• read-avg-response-time: I/O read average response time in microseconds. Applicable objects: controller, hostport, pool, system, volume.
• read-bytes-per-second: Number of bytes read per second. Applicable storage objects: controller, host-port, pool, system, volume.
• read-iops: Number of I/Os per second. Applicable objects: controller, host-port, pool, system, volume.
• read-max-response-time: Maximum I/O read response time in microseconds. Applicable objects: controller, host-port, pool, system, volume.
• read-num-bytes: Number of bytes read since the last time this data point was sampled. Applicable objects: controller, host-port, pool, system, volume.
• small-destages: Number of partial stripe destages. (These tend to be very inefficient compared to full stripe writes.) Applicable objects: controller, volume.
• write-io-count: Number of write I/O operations. Applicable objects: controller, host-port, pool, system, volume.
• write-avg-queue-depth: Average number of pending write operations being serviced since the last sampling time. This value represents periods of activity only and excludes periods of inactivity. Applicable objects: host-port, volume.
• write-avg-response-time: I/O write average response time in microseconds. Applicable objects: controller, host-port, pool, system, volume.
• write-bytes-per-second: Number of bytes written per second. Applicable objects: controller, host-port, pool, system, volume.
• write-cache-space: Current size of write cache in 16KB chunks. Applicable objects: controller, volume.
• write-cache-percent: Percentage of write cache currently being used in tenths of a percent. Applicable objects: controller, volume.
• write-full-stripe-destages: Number of full stripe destages, which are the most efficient destage type. Applicable objects: controller, volume.
• write-iops: Number of I/Os per second. Applicable objects: controller, host-port, pool, system, volume.
• write-max-response-time: Maximum I/O write response time in microseconds. Applicable objects: controller, host-port, pool, system, volume.
• write-num-bytes: Number of bytes written since the last time this data point was sampled. Applicable objects: controller, host-port, pool, system, volume.

Metrics for the system storage object are synthesized from data captured by controller storage objects.

[database all|dynamic|historical]

[pattern <string>]

[range]

[started]

[type controller|host-port|pool|system|volume]

Optional. Specifies to show all metrics or only dynamic metrics or historical metrics. If this parameter is omitted, all metrics are shown.

Optional. Shows metrics whose names contain the specified string. The string can include the following wildcards, singly or in combination.

• * Matches zero or more characters.
• ? Matches any one character. Use multiple ?wildcards to find names of a specific length. For example, Vol?? will find names starting with Vol that are five characters long.
• [] Matches any character within the brackets, except a hyphen. Alphabetic characters are case sensitive. For example, [123] matches 1, 2, or 3. Use a hyphen between two characters to specify a range. For example, [0-9] matches any one digit. You can combine the list and range forms. For example, [xy1-3] matches x or y (but not X or Y), or 1, 2, or 3.

Optional. Shows the start time and end time of available data points.

Optional. Filters the list to include only metrics available for the specified type of storage object.

Optional. Filters the list to include only those metrics that have been started by using the start metrics command.

The metric name in the format type.field-name.instance, where type is a storage object, field-name is a specific measured property of that object, and instance is the name or serial number of that object. For example: controller.total-iops.A.

If database historical is specified, the command shows average, maximum, and minimum entries for each calculated historical data point. These values are appended with an '@' symbol to the metric name. For example: controller.totaliops@ Average.A, controller.total-iops@Max.A, controller.total-iops@Min.A.

Shows whether metric retention has been started.

Shown by the range parameter. Shows the time when metric retention started.

Shown by the range parameter. Shows the time when metric retention ended.

status

Show all metrics that have been started.

# show metrics-list started

Show the range of start and end times for historical controller metrics.

# show metrics-list range database dynamic type controller

query metrics

start metrics

stop metrics