I have done the following when trying to add my new drives to the array:

1. Format to xfs

2. Ran preclear with post-check.

3. Stopped the array.

4. Added my precleared drives to the array.

5. Started the array.

I am getting an error that the drives are unmountable due to an unsupported or no file system. The file system shows auto.

Is there an additional step that I need to do to add these drives to the array?

I see the Format option under Array Operations.

Just wanted to double check if this is the correct way to add drives to the array.

2 hours ago, raphytaffy said:

1. Format to xfs

2. Ran preclear with post-check.

Step 1 is a bit pointless as step 2 promptly overwrites all sectors on the drive to zeroes eliminating the results of the format. Any formatting needs to be done after adding a drive to a parity protected array.

1 hour ago, itimpi said:

Step 1 is a bit pointless as step 2 promptly overwrites all sectors on the drive to zeroes eliminating the results of the format. Any formatting needs to be done after adding a drive to a parity protected array.

Makes sense, I just included it for full transparency of the steps I took. I'll make note of removing this step.

My main concern now is that it looks like my array is running a disk rebuild. Should I wait for the rebuild to finish before formatting the new drives?

8 hours ago, raphytaffy said:

Should I wait for the rebuild to finish before formatting the new drives?

You can format them at any time.

14 minutes ago, JorgeB said:

You can format them at any time.

Thanks.

Last question. Is there a way to tell what prompted the disk rebuild? I followed the steps posted above. Does a disk rebuild kick off any time you add new drives to the array?

1 hour ago, raphytaffy said:

Does a disk rebuild kick off any time you add new drives to the array?

Nope, would need to see the diags, but most likely the array was started with them unassigned.

1 hour ago, raphytaffy said:

Thanks.

Last question. Is there a way to tell what prompted the disk rebuild? I followed the steps posted above. Does a disk rebuild kick off any time you add new drives to the array?

A disk rebuild should only happen if replacing an existing drive. If you are getting this when just adding a drive then it implies something else happened.

If adding a new drive and the preclear signature is not recognised then Unraid will carry out a 'Clear' operation to ensure the drive is all zeroes so it does not affect parity.

11 hours ago, JorgeB said:

Nope, would need to see the diags, but most likely the array was started with them unassigned.

raphnas-diagnostics-20250808-1239.zip

Syslog only has mover related spam. Unless you are troubleshooting mover issues, mover logging should be disabled.

13 hours ago, JorgeB said:

Syslog only has mover related spam. Unless you are troubleshooting mover issues, mover logging should be disabled.

How do I disable mover logging?

7 minutes ago, raphytaffy said:

How do I disable mover logging?

The same way you must have enabled it as it is not enabled by default 😊. Under Settings->Scheduler.

1 hour ago, itimpi said:

The same way you must have enabled it as it is not enabled by default 😊. Under Settings->Scheduler.

It shows that it is already disabled, so I'm confused why my logs are filled with mover related logs as @JorgeB mentioned.

Sorry, they are not mover relaated messages, but shfs, please reboot and post new diags after array start.