MD3000i two failed disk

Good morning, I have an old MD3000i connected to a little proxmox server.

During a storm two old one terabyte disk went offline as failed.

As backup was old, I tried to do a recovery using an other SAS controller in readonly way to examine the trouble on one disk.

Problem was defined by no more spare sectors on relocatable table.

I decided to make a surface clone of the disk using ddrescue that recovery all data on the new disk.

Then I put back the disk in the same position of the failed one and examined the situation.

The new disk is ok but it is in unassigned state.

There is any possibility to say to the controller "DISK 6 in the group X" without destroing data?

Thank you in advance