Greetings,
I'm having issues replacing some drives with new larger ones.

My current config,
A 4TB parity drive, several 4TB data drives, and a few 1TB data drives.

I'm trying to switch one of those 1TB data drives out for a 12TB one, and then the parity drive from 4 to 12TB as well after.

 

I followed the "safer method" procedure in the Unraid Docs.
Stopped the array, replaced a 1TB data drive with the new 12TB. Assigned the new drive to old slot in the GUI. Started the array.
Array receives a start error. First it said "wrong disk" now it just says "Disk in parity slot is not biggest."

 

If I were to swap that 4TB parity with new 12TB parity, correct me if I'm wrong but wouldn't it fail to rebuild my data drive?
Not sure what I'm missing here but any help would be appreciated.

Thanks ahead.

wrong sequence.

You should first have replaced the parity drive (either with the described procedure, or the "hard way" (turn off parity, replace drive, turn on parity, wait for rebuild to complete), then the data drive.

But things hopefully are not ruined now. Put back the 1Tb drive and assign it again to the array. Start array (should work again) and then start over.

If it is messed up already you have to accept the penalty time of rebuilding the 1Tb first because you can start over.

 

 

Reassign the old disk and upgrade parity first, if the old disk is no longer available or already disabled you can do a parity swap.

10 hours ago, MAM59 said:

wrong sequence.

You should first have replaced the parity drive (either with the described procedure, or the "hard way" (turn off parity, replace drive, turn on parity, wait for rebuild to complete), then the data drive.

But things hopefully are not ruined now. Put back the 1Tb drive and assign it again to the array. Start array (should work again) and then start over.

If it is messed up already you have to accept the penalty time of rebuilding the 1Tb first because you can start over.

 

 

Thank you for the help, that sounds like the logical solution. I'll give it a try.

13 hours ago, MAM59 said:

wrong sequence.

You should first have replaced the parity drive (either with the described procedure, or the "hard way" (turn off parity, replace drive, turn on parity, wait for rebuild to complete), then the data drive.

But things hopefully are not ruined now. Put back the 1Tb drive and assign it again to the array. Start array (should work again) and then start over.

If it is messed up already you have to accept the penalty time of rebuilding the 1Tb first because you can start over.

 

 

Thanks to you and the mod, this worked. I rebuilt the parity on the formerly removed 1TB drive (about two hours). Verified everything was in order, which it was (unraid is awesome)
Then followed the procedure but starting with the parity drive.
Stopped the array. Unassigned 4TB parity drive. Shut down. Installed 12TB parity drive. Booted up. Assigned new drive to old drives slot. Started array. Rebuilding currently, should take about 20 hours for my array.
After it completes, I'll install the new data drive using the same process.
Thanks again.

On 3/30/2024 at 2:43 PM, Tisrok said:

Thanks to you and the mod, this worked. I rebuilt the parity on the formerly removed 1TB drive (about two hours). Verified everything was in order, which it was (unraid is awesome)
Then followed the procedure but starting with the parity drive.
Stopped the array. Unassigned 4TB parity drive. Shut down. Installed 12TB parity drive. Booted up. Assigned new drive to old drives slot. Started array. Rebuilding currently, should take about 20 hours for my array.
After it completes, I'll install the new data drive using the same process.
Thanks again.

Everything worked out. Parity was successfully rebuilt. Old parity drive swapped, old data drive swapped, all is running perfect and no data loss.