HP MSA 2040 CLI Reference Guide
230
show disk-statistics
Description Shows live or historical performance statistics for disks. You can view live statistics for all or specified
disks, or historical statistics for a specified disk. The system samples disk-performance statistics every
quarter hour and retains performance data for 6 months.
The historical option allows you to specify a time range or a number (count) of data samples to
include. It is not recommended to specify both the time-range and count parameters; if both
parameters are specified, and more samples exist for the specified time range, the samples' values
will be aggregated to show the required number of samples.
Statistics shown only in XML API output are described in "XML API basetype properties" (page 367).
Syntax To show live statistics:
show disk-statistics
[
disks
]
To show historical statistics:
show disk-statistics
disk
historical
[time-range "
date/time-range
"]
[count
number-of-data-samples
]
[all]
Parameters
disks
Optional. Identifies one or more disks for which to show live statistics. If this parameter is omitted,
statistics will be shown for all disks. For disk syntax, see "Command syntax" (page 20).
disk
Identifies one disk for which to show historical statistics for. For disk syntax, see "Command syntax"
(page 20).
historical
Optional. Specifies to show historical statistics. If this parameter is omitted, live statistics will be
shown.
time-range "
date/time-range
"
Optional. Specifies the date/time range of historical statistics to show, in the format "start
yyyy-mm-dd
hh
:
mm
[AM|PM] end
yyyy-mm-dd
hh
:
mm
[AM|PM]". If the start date/time is
specified but no end date/time is specified, the current date/time will be used as the end date/time.
The system will return the oldest sample taken after the start time and the latest sample taken before
the end time. If the specified start date/time is earlier than the oldest sample, that sample will be
used as the start date/time. If you specify this parameter, do not specify the count parameter. If this
parameter is omitted, the most recent 100 data samples will be displayed.
count
number-of-data-samples
Optional. Specifies the number of data samples to display, from 1–100. Each sample will be shown
as a separate row in the command output. If this parameter is omitted, 100 samples will be shown. If
you specify this parameter, do not specify the time-range parameter.
all
Optional. Specifies to show the full set of performance metrics. If this parameter is omitted, the
default set of performance metrics will be shown.