Seeing high latency on offline volumes. | NetApp | Page 1

analog shale Jun 17, 2026, 5:38 AM

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There are some volumes which are offline and the grafana is showing high latency on the offline volumes. Is there ny reason,

trim moss Jun 17, 2026, 5:39 AM

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Are there any iops reported on these volumes? read/write/other?

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What about System Manager?

analog shale Jun 18, 2026, 12:49 PM

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No

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iops on the volume and the volume was offline

trim moss Jun 18, 2026, 2:45 PM

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Okay. Could you share answer to below questions?

What is your Harvest version?
What is the current latency value you're observing for this volume?
What is the latency reported in System Manager for this volume?
What is the volume_total_ops metric value from your Prometheus/VictoriaMetrics query? (Example below)

analog shale Jun 19, 2026, 7:08 AM

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from active iq

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trim moss Jun 19, 2026, 7:56 AM

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Thanks. Could you share what is your Harvest version?

analog shale Jun 19, 2026, 8:36 AM

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NAbox v4.2.0 (f2056a6)

Harvest 26.05.0

Grafana 12.4.2

Victoria Metrics 2.24.0

trim moss Jun 19, 2026, 8:39 AM

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Could you share volume_total_ops metric graph as well for this volume?

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Please also upload NABox support bundle here
https://upload.nabox.org/saqu-diyu-dywo

Could you also check in System Manager?

analog shale Jun 22, 2026, 4:11 AM

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uploaded the logs

trim moss Jun 22, 2026, 9:09 AM

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Thanks. Please share below as well.

The volume_total_ops panel graph from the Volume Grafana dashboard for this volume, along with the corresponding/equivalent latency panel graph.
The System Manager–reported values for the same metrics for this volume.

analog shale Jun 23, 2026, 9:03 AM

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trim moss Thanks. Please share below as well. 1. The volume_total_ops panel graph from th...

How can i get volume_total_ops panel

trim moss Jun 23, 2026, 9:09 AM

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You have these IOPS panels in volume dashboard as below.

trim moss Jun 23, 2026, 3:46 PM

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@analog shale Additionally, could you enable debug logging for the relevant poller affected by this latency issue in NABox? The steps are documented here https://github.com/NetApp/harvest/discussions/4330
After restarting, once the issue occurs, you can upload the latest NABox support bundle here
https://upload.nabox.org/saqu-diyu-dywo

analog shale Jun 24, 2026, 6:40 AM

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arctic spruce Jun 24, 2026, 9:00 AM

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@analog shale
After enabling the debug logs and restarting, If the issue occurred, you can upload the latest support bundle here at same location: https://upload.nabox.org/saqu-diyu-dywo

analog shale Jun 24, 2026, 9:01 AM

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i have enabled the debug and restarted the harvest

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uploaded the logs

distant sierra Jun 24, 2026, 1:18 PM

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Thanks for the log files @analog shale they are very helpful in showing the issue. There are five volumes were we see spkes. Each of these volumes has a small number of iops but a large latency delta.

Following these instructions, https://github.com/NetApp/harvest/discussions/4325 can you set latency_io_reqd in your KeyPerf and Restperf collectors to a value of 10 and restart? Let us know if that solves the high latencies you're seeing

GitHub

How to change latency_io_reqd param in Harvest/NABox4 · NetApp har...

As mentioned in #3962, Below are the steps to modify this in Harvest and NABox4. In below example, we'll change latency_io_reqd to 10. Default value is 0 because it matches with PAS and System ...

analog shale Jun 24, 2026, 1:41 PM

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cd /etc/nabox/harvest/user/zapiperf
-su: cd: /etc/nabox/harvest/user/zapiperf: No such file or directory

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can i create the directory

distant sierra Jun 24, 2026, 1:43 PM

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yes

analog shale Jun 25, 2026, 4:31 AM

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I have applied the above fix and still seeing the same

distant sierra Jun 25, 2026, 11:29 AM

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Can you upload another support bundle to https://upload.nabox.org/saqu-diyu-dywo and we'll take a look

analog shale Jun 26, 2026, 5:46 AM

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uploaded the logs

trim moss Jun 26, 2026, 6:31 AM

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Thanks @analog shale .

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@analog shale In NABox, this setting isn’t being applied as expected. A fix is needed here in NABox
@eager fog can help.

eager fog Jun 26, 2026, 6:39 AM

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So, if you directly change the file in active directory, and stop/start the poller (without restarting the container), it should work

analog shale Jun 26, 2026, 6:42 AM

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So you want me to restart the harvest or poller

eager fog Jun 26, 2026, 6:42 AM

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just poller, in the UI, not the havrest container

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I should have a fixed build for you sometime today

eager fog Jun 26, 2026, 7:44 AM

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sending you a PM

analog shale Jul 3, 2026, 3:47 AM

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HI @eager fog ,

i have updgrade the nabox with the version you have provided but still i am seeing the offline volumes on top 5 volume latency

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eager fog Jul 3, 2026, 4:38 AM

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What’s the configuration file in active directory now ?

analog shale Jul 3, 2026, 7:02 AM

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Yes

trim moss Jul 3, 2026, 7:03 AM

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Could you add latest NABox support bundle at https://upload.nabox.org/kogi-xyxu-myke ?

analog shale Jul 6, 2026, 12:42 PM

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HI @trim moss , I have uploaded the logs

arctic spruce Jul 7, 2026, 3:06 PM

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@analog shale
Thanks for the logs, Your support bundle shows Nabox version as v4.2.2-27-g5c4e3b6.

We have fix in new Nabox version and we have validated locally. It would be in version v4.2.2-32 (e6c4399), @eager fog will cover the release timeline accordingly.

analog shale Jul 14, 2026, 1:38 PM

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@eager fog, When will the version will released

eager fog Jul 15, 2026, 6:01 AM

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Working on it. Hoping today or tomorrow.

#Seeing high latency on offline volumes.