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MD3860F Cache Backup Device Failed , Insufficient Cache Backup Device Capacity
Hello
I have read the discussion about 3820F
try to reseat controller and cache and it's still not working
The main difference is that we have a full 3860F as replacement parts
controller are all at same latest firmware version
I would like to know how to change the controller
is there any special software preparation before ?
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Thanks in advance
DaveNull91
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November 30th, 2023 12:52
feed back successfull operation
to remove the message without restarting the full MD
Cache Backup Device Failed, Unable to retrieve detailed information
we put all disks pools on the replacement controller 1
then reset controller 0
after all is OK
DELL-Erman O
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November 28th, 2023 09:25
Hello, sorry to hear that you are struggling the issue.
you can replace a RAID controller module or an expansion module by following these steps:
please check pg 33 Dell PowerVault MD3860f Storage Arrays Owner's Manual
(edited)
DaveNull91
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November 30th, 2023 11:32
Thanks for the information
So we have made the operation this morning
switching disks pools to operational controller 0
have to put the incrimined controller 1 offline
removing the controller 1
waiting 1 minute at least
putting the replacement controller in the rack
place the controller 1 online
controller 1 is seen ok by the MD3860 ( cache is active )
But there still is a message in the Recovery Guru section with the "Cache Backup Device Failed, Unable to retrieve detailed information"
we put all disks pools on the replacement controller 1
then reset controller 0
and now all is optimal
DaveNull91
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November 30th, 2023 12:24
@Dell-ErmanO
I think you forget to read the 3 last lines that explain how we remove the message
we put all disks pools on the replacement controller 1
then reset controller 0
and now all is optimal