@DELL-Charles R​ 

Hi Charles

hope your doing good.

am still waiting to get the serial cable?

but i tried to slot back my old failed raid controller, its showing in the slot but status failed.

While the new one does not appear?

Whatever it was that you posted didn't come through, could you try sharing it again, and if that fails maybe change the media type?

Hi,

I reviewed and researched the whole thread again. When you add a second controller to the storage array, the redundancy mode will not update automatically. You need to manually configure this setting only when you are upgrading from a single controller to dual controller use. Once you set the redundancy mode, it will stay the same even if you remove or replace a controller.

If the redundancy mode is not correctly set, the additional controller will still be detected, but it won't be usable in case of a failover or to provide a backup path to the storage LUNs.

To check the current redundancy mode for the array, you can look in the Storage Array Profile. You can find this information either through MDSM or in a support bundle at the top.

If the mode is no longer correctly set for the new hardware configuration, you can update the array to Duplex mode by following these steps:

1. If you have already installed the new controller, remove it.
2. Open the command line of the management station and execute the following command: SMcli.exe -n ArrayName -c "set storageArray redundancyMode=duplex;"
3. After that, you can hot insert the new controller.

Hope that helps!

@DELL-Erman O​ 

Hi i have run the command and inserted the new controller but this is it

Controller not showing

I see and sorry to hear it, then I'm stuck right now too. Frankly, normally I would have expected that to help. Let's see how contribute to our community.