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3 Posts
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1172
January 31st, 2022 15:00
MD3200i Failed (Offline) Controller
Hi, I have an MD3200i with Dual controller. One of the controllers (1) Failed and went Offline automatically. Everything is working fine on the primary controller (0). I found a replacement controller, removed the failed one, and placed the "new" one in, but its still in the Failed (Offline) state.
After that, I went ahead and reverted the change, now the Old controller does not get recognized. I'm currently with the replacement "new" controller installed but in a Failed (Offline) state.
My questions are:
What is the correct procedure to replace the controller?
Now that I have the "new" controller in, do I have to place it online?
If I place it online would it pick up the config and the firmware from the other controller?
Any help would be greatly appreciated.
Thank you!
SFaya
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3 Posts
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February 1st, 2022 09:00
Thank you Diego, the problem was resolved by running the following commands on the Controller Shell:
clearHardwareLockdown
lemClearLockdown
and then removing and reinserting the controller in a Failed state. After that, the controller copied the firmware and configuration from the working one and the storage went back to Optimal.
DiegoLopez
4 Operator
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2.7K Posts
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February 1st, 2022 07:00
Hello @sfaya,
To replace a MD controller, you need to remove the bad controller and then insert the new controller. Once the new controller has been inserted give it about 10 minutes to sync with the current controller before bring it online. When the new controller is syncing it is going to match the firmware of the current controller as well as will copy the configuration to the new controller of all your virtual disk info. There is normally no down time needed, but you do want to limit I/O as much as possible. You don’t need to remove the SD card on the controller as all the data will be copied from the current working controller.
Maybe you reverted the change too quickly and that caused the old controller to not get recognized. Did you check MDSM before reverting the change?
I would sugget to make sure you recover the old good controller before any more steps? Do you have a serial cable to check its status?
Regards.
dharmie
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July 5th, 2022 09:00
Hello DiegoLopez,
I am a premium customer (support engineer) to Dell, however i have a storage that is end of life and support but houses a legacy application for the enterprise.
It is the Power-vault MD3200, one of the controllers had a failed battery and was unresponsive, my colleague ejected the controller and swapped it for the seat of the functional one hence putting it in service-mode so it is now in service mode, however, the storage cannot read that controller anymore and we have to change it. i have a couple of similar storage array from a different storage i can cannibalize for its fix but might require advise on how to reset the reusable controller to factory .