topic Re: dfm perf data retreive a specific volume in Active IQ Unified Manager Discussions

dfm perf data retreive a specific volume

JGPSHNTAP — Thu, 05 Jun 2025 04:22:57 GMT

so, i want to see statistics from the cli for a specific volume and I'm trying -C volume:volumename:cifs_read_latency but it keeps giving me all the volumes.

Is there a way to get just a single volume?

Re: dfm perf data retreive a specific volume

bobshouseofcards — Tue, 05 May 2015 13:55:33 GMT

You will want to use the "-o" option on the "dfm perf data retrieve" command to specify a specific object whose counters you wish to query.

C:\>dfm perf data retrieve help

NAME
retrieve -- This command allows you to extract the counter data
with supported statistical calculations on them.

SYNOPSIS
dfm perf data retrieve { [ -o object-name-or-id ... ] [ -C perf-counter ... ]
[ -V view-name ] }
[ -d duration ] [ -b start-time ] [ -e end-time ]
[ -M month ... ] [ -D weekday ... ] [ -T time-range ... ]
[ -m statistical-method [ -P percentile-value ]
[ -S data-advance-method ] ]
[ -s sample-rate ] [ -x output-format ] [ -R ]

Description of options:

-o Object instance for which data is to be retrieved. Multiple object
instances can be specified. Specifying a parent will retrieve data
for all its children.

-C A counter of the form object-name:counter-name (ex. system:cpu_busy).
Multiple counters can be specified.

So in your case, the CLI would be something like "dfm perf data retrieve -o yourvolumename -C volume:cifs_read_latency". Note that you don't put the volume name in the counter parameter. You can put multiple "-C" parameters on a single command line if you need multiple counters for the same object, for instance:

dfm perf data retrieve -o yourvolumename -C volume:cifs_read_latency -C volume:cifs_write_latency -C volume:cifs_other_latency

If you use multiple counters within a single retrieve another option to consider is "-x TimeIndexed" which organizes the output in a tabular format by sample time. If you specify counters that are updated on un-correlated schedules or if you specify multiple objects that might have uncorrelated collection schedules you may run into some odd results on a TimeIndex report, since DFM tries to make sense of all the data in a single aggregation.

Hope this helps you.

Bob Greenwlad

Lead Storage Engineer, Huron Legal

Huron Consulting Group

NCDA | NCIE-SAN Clustered Data OnTap

Re: dfm perf data retreive a specific volume

JGPSHNTAP — Tue, 05 May 2015 14:22:30 GMT

That doesn't seem correct. -o you can't use volume name.. Its telling me there is no object

Re: dfm perf data retreive a specific volume

bobshouseofcards — Tue, 05 May 2015 15:43:16 GMT

Question - 7-mode or clustered Data OnTap?

Re: dfm perf data retreive a specific volume

JGPSHNTAP — Tue, 05 May 2015 15:46:05 GMT

This is a 7-mode environment. There is CLI for cdot

Re: dfm perf data retreive a specific volume

bobshouseofcards — Tue, 05 May 2015 16:42:51 GMT

To get the form of the volume instance names you need, run the command:

dfm perf counter list <controller>:volume:*:*:*:*

substituting the name of your 7-mode controller. If I remember right in 7-mode the volume name form is either controller-name:/volume-name or controller-name:/vol/volume-name, but the counter list command will display the form you need.

Re: dfm perf data retreive a specific volume

JGPSHNTAP — Tue, 05 May 2015 17:19:38 GMT

I'm sorry , but these aren't working either..

Re: dfm perf data retreive a specific volume

bobshouseofcards — Tue, 05 May 2015 18:37:04 GMT

Ok - so the really old fashioned steps:

Please confirm the version of OnCommand Unified Manager - just for grins.

Can you display the output of the "dfm perf counter list" command with what you entered and what it gave you back?

Re: dfm perf data retreive a specific volume

JGPSHNTAP — Tue, 05 May 2015 21:42:31 GMT

We are using 5.2.1 - latest for that platform.

dfm perf counter list doesn't give us back anything

Re: dfm perf data retreive a specific volume

bobshouseofcards — Thu, 07 May 2015 03:25:33 GMT

It gave you nothing? As in just the prompt returned?

Literally, to continue I need to see cut/paste of what you typed and what came back. It should have at least generated an error message.

Reference dfm perf cli

Re: dfm perf data retreive a specific volume

bobshouseofcards — Thu, 07 May 2015 12:48:32 GMT

Also - please check whether Performance Advisor is enabled (just one of the "obvious" things to verify).

C:>dfm option list perfAdvisorEnabled
Option Value
------------------ ------------------------------
perfAdvisorEnabled Enabled

If it isn't enabled, definitely turn it on. Most performance counter data isn't collected if PerformanceAdvisor isn't enabled.

Re: dfm perf data retreive a specific volume

JGPSHNTAP — Thu, 07 May 2015 13:20:02 GMT

Ok, Im pretty well versed in dfm, and I appreciate your help, which is leading me to more confusion as to why this doesn't work.

dfm perf data retrieve -o filer1 -C volume:volumeb:cifs_read_latency -C volume:volumebS:nfs_read_latency -s 300 -b
"2015-04-01 16:00:00" -e "2015-04-03 21:30:00"

That returns all the volumes on filer1 cifs_read and nfs_read latency