topic Re: 12610 NVDIMM ultracap capacitance discharged in Array Setup and Networking

12610 NVDIMM ultracap capacitance discharged

ACLHelpdesk — Wed, 03 Aug 2022 15:50:39 GMT

Can anyone help with this "12610 NVDIMM ultracap capacitance discharged" on s CS500 SAN

Thanks

Re: 12610 NVDIMM ultracap capacitance discharged

sbhat09 — Fri, 05 Aug 2022 07:29:48 GMT

Hello @ACLHelpdesk,

If it is feasible, you can try to shutdown, powerdrain the system and restart.

Regards,
Srinivas Bhat

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Re: 12610 NVDIMM ultracap capacitance discharged

ACLHelpdesk — Fri, 05 Aug 2022 10:41:50 GMT

Thank you Srinivas

We will try that

Re: 12610 NVDIMM ultracap capacitance discharged

ACLHelpdesk — Mon, 08 Aug 2022 05:01:18 GMT

@sbhat09

Hi again,

We discussed powering down / rebooting the system and this is not an option for the customer.
> We have a replacement controller on its way to replace the old one,
are you able to share any possible issues replacing the controller? ie Firmware issues

Also the Warning (12610 NVDIMM ultra cap capacitance discharged) showed up on an event log a few days ago indicating that a 7day timer had started until power down. but diagnostics are currently showing nothing??
was this warning a red hearing

Many thanks for your help

Ciaran

Re: 12610 NVDIMM ultracap capacitance discharged

Mahesh202 — Mon, 08 Aug 2022 05:59:49 GMT

Hi ACLHelpdesk

I would not suggest you Shutdown/Restart, or power drain the system, that is not a solution.

The NVDIMM firmware periodically measures the remaining PowerGEM capacitance and raises a flag to software if it is deemed insufficient to guarantee a save and restore cycle in the event of system power loss. (Note: Software only sees that the flag has been asserted and does not know/control the capacitance threshold.)

The capacitance measurement process is susceptible to inherent random measurement error. Any given measurement could be randomly off to the degree that it crosses the threshold and raises the flag. The subsequent measurement does not see the same error and clears the flag, so the software reports it is now OK.

If you are running 5.2.1.300 or later Contains the fix then the controller needs to be replaced.

Hope this helps.!!

Regards
Mahesh.

Re: 12610 NVDIMM ultracap capacitance discharged

ACLHelpdesk — Tue, 09 Aug 2022 08:32:11 GMT

@Mahesh202

Thank you for your reply Mahesh we really appreciate it!

So Just to insure we understand correctly

On older versions a false warning may be flagged but if the warning is flagged on 5.2.1.300 (or above) its not likely to be false and therefore the controller needs to be replaced.

Can er also ask is there any other alternative to replacing the whole controller?

Many Thanks

Ciaran

Re: 12610 NVDIMM ultracap capacitance discharged

Mahesh202 — Tue, 09 Aug 2022 09:25:15 GMT

Hi Ciaran

Yes, that's the correct understanding. Prior to, The arrays which are running with newer versions after Nimble version 5.2.1.300 are less likely to have false alerts.
Considering the nimble support logs and frequency of the alerts may conclude the need for replacement.

There is no alternative to replacing the controller

Regards
Mahesh

Re: 12610 NVDIMM ultracap capacitance discharged

Pakito561 — Wed, 16 Jul 2025 05:21:29 GMT

Hello Srinivas,

I see you continue to answer on many topics but it seems you are not really qualified to do so. So, please, answer only when you are sure to have the answer and avoid to guess.

Thank you for your understanding