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Interstellar_pi
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April 10th, 2026 12:48
PS4100 SD failure
I had one of the SD cards fail in a controller, so I bought a new SD and cloned the still working one to the new SD, and now the controller with the original SD is in a boot loop, but the new SD works perfectly. Is there a setting in the files on the SD that I need to change to allow one as standby
Interstellar_pi
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Posted May 28th, 2026 13:29
In the storage manager thing it just shows controller unknown, I have tried a few times but have been unable to get a serial connection to the controller via putty (Control Module 12)
Do you have any recommendations on how to pull the errors?
(edited)
dwilliam62
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Posted May 28th, 2026 20:20
Hello,
Serial cable will be the best way. 9600,n,8,1. Don't use a cisco serial cables, and the cable either has to be a crossover or you need an adapter.
Regards,Don
Interstellar_pi
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Posted June 9th, 2026 12:46
I order a serial to usb cable and was able to get a connection, here is the output
ERROR: NVRAM check sum invalid with shutdown code of 1
SP [secondary]:1.00:emm.c:2363:ERROR:28.4.47:Critical health conditions exist.
Correct immediately before they affect array operation.
Critical hardware component failure.
There are 1 outstanding health conditions. Correct these conditions before they affect array operation.
SP [secondary]:1.00:emm.c:355:ERROR:28.4.85:Critical hardware component failure, as shown next.
TOY COIN cell battery has insufficient charge to survive power outage.
SP [secondary]:1.00:emm.c:355:ERROR:28.4.85:Critical hardware component failure, as shown next.
C2F power module is not operating.dwilliam62
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Posted June 10th, 2026 01:15
@Interstellar_pi Well I can see the problem. The coin cell is not big deal but the C2F (Cache-to-Flash) module is defective. That (or the controller) has to be replaced. The C2F is a board that sits on top of the controller, made up of a bunch of capacitors. Which over time fail.
Regards,
Don
Interstellar_pi
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Posted June 11th, 2026 12:24
@dwilliam62 Yeah I saw that as well, this is the first time I got a serial connection to it, I think it may be the controller, I replaced the Coin cell battery but the error for it didn't go away. the C2F module on the other controller looks different, can I still swap it with the bad one to confirm if it is the controller or Module?
dwilliam62
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Posted June 11th, 2026 13:09
You should be able to swap them, one maybe an newer version. It's a common failure though. They TOY battery don't impact the C2F. That's just date/time
dwilliam62
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Posted May 26th, 2026 15:53
Hello,
No, the SD cards just have OS and simple configs. Please post the errors
Don