Just now, ButchR said:

Should I use the spare unassigned precleared 16TB drive?

for what? Nothing in the instructions yet about new drives

I could use this drive to rebuild disk 2.

I may lose data that on disk 7, right? In the original configuration I had a disk7 in the array.

you can assign it as disk2 in the new config, but we aren't rebuilding yet

Oh okay.

original disk 7 must work well enough to emulate disk2 with all other disks

2 minutes ago, ButchR said:

In the original configuration I had a disk7 in the array.

you must have original disk 7 in array for the new config

I am such a novice.. okay I am still at this step . I will apply and proceeding with steps.

ok

All disks must be assigned exactly as before including original disk7, except you can assign new disk as disk2 since we are going to disable it.

19 hours ago, trurl said:

Tools - New Config - Retain All - Apply.

If any drives are not assigned, assign them as before.

Check BOTH Parity Valid and Maintenance Mode checkboxes then Start the array. This will accept all drives into the array without changing any of them

Stop the array, unassign disk2, start the array in Normal mode. This will disable disk2.

19 hours ago, trurl said:

Then post new diagnostics so we can see if emulated disk2 is mountable.

Okay. Array has been Reset(please configure)

Done, right? Then assign drives, right?

Post a screenshot of Main - Array Devices

Are those assignments correct? Disk2 should be the new disk, but it also thinks disk1 is new. Looks like that is the same disk1 from your earlier diagnostics though.

On 1/15/2026 at 2:59 AM, JorgeB said:

Some drives changed IDs, likely due to the controller change. You possibly used a RAID controller before

Are those assignments correct? Disk2 should be the new disk, but it also thinks disk1 is new. Looks like that is the same disk1 from your earlier diagnostics though.

Okay updated:

Yes. no change for disk 1.

2 minutes ago, ButchR said:

Okay updated:

What did you do between taking those 2 screenshot?

I assigned the new 16TB drive for disk2 14TB drive.

Is something off now?

Oh, I see, you changed disk2 to the new disk. Not immediately clear why it thinks that is not a new assignment, but maybe the explanation could be found earlier in the thread.

Checkboxes very important

19 hours ago, trurl said:

Check BOTH Parity Valid and Maintenance Mode checkboxes then Start the array. This will accept all drives into the array without changing any of them

I will pause my actions on this project until I heard from you. Let me know if I did something wrong. When you can , thanks for now. Just another shot of screen Array operation.

On hold with steps and observing warnings.

1 hour ago, trurl said:

Checkboxes very important

  21 hours ago, trurl said:

Check BOTH Parity Valid and Maintenance Mode checkboxes then Start the array. This will accept all drives into the array without changing any of them

This is the next step