OK; I accidentally selected a new disk for the array. I only selected it for a drive-slot; never actually started the array (with it selected).

 

I have since de-selected it, but now when I try to run the pre-clear on that disk...it says it's part of the array and will not run pre-clear. I've stopped the array, un-seated the disk; re-booted, re-started the array, etc. Still sees it as part of the array.

 

Thoughts? Thanks

Can you get to a command line at all?

 

If so you could clear the mbr of the disk in question with the following:

 

dd if=/dev/zero of=/dev/xxx count=1 bs=512

 

Where xxx is your hard drive letter (probably something like: /dev/sdc)

 

Then try to preclear.

That seemed to "work"; in that (from the root) I did dd if=/dev/zero of=/dev/xxx count=1 bs=512

 

and it gave me 1+0 records in, 1+0 records out, 512 bytes copied, etc; but cd /boot>preclear_disk.sh /dev/xxx still gives me the same message.

Post a screen shot of unRAID main.

^^^

 

How about this: what if I un-assign the current parity drive, assign the new 3T drive as the parity drive; bring the array back online...then stop it, re-unassign the new 3T drive...re-assign the original parity drive, and then try the preclear?

 

Any potential damage to my array? Thanks

^^^ Or maybe assign as the cache? My thinking is, the drive is stuck in a state of "limbo"; it's not really assigned...not really un-assigned. My feeling is it's got to be really assigned, and then really un-assigned; then hopefully the preclear will work.

 

But how to do it, without screwing-up my array? C'mon heroes; where are ya on this one? I've got like a week's worth of preclear ahead of me...and I can't even get off the ground.

^^^ Or maybe assign as the cache? My thinking is, the drive is stuck in a state of "limbo"; it's not really assigned...not really un-assigned. My feeling is it's got to be really assigned, and then really un-assigned; then hopefully the preclear will work.

 

But how to do it, without screwing-up my array? C'mon heroes; where are ya on this one? I've got like a week's worth of preclear ahead of me...and I can't even get off the ground.

 

OK; I got that to work. Assigning it to the cache, did allow me to start the array (even though this new drive is bigger than any of the existing drives). Once I actually assigned, started the array; stopped the array, and un-assigned...the preclear recognizes the disk as un-assigned again.

 

Thanks