Lost my USB drive and have just an older backup.

[mfarlow]

So I recently moved.  Prior to the move I upgraded my 4TB drives to newer 10 drives.  Ran a parity check and packed everything up for the move.  During the move I somehow lost my unRaid USB thumb drive. 

 

I have plenty of USB sticks laying around, so i grabbed one formatted following the proceedure to create a new boot drive, using an old backup file I had thought I created after the drive swap.  Started up the array, and it is showing all my old 4TB drives as missing.  So obviously my backup file dated after I did the swap, was older than I had thought.

 

I don't really care about the time it will take to rebuild parity, so my question is, can I just perform a new config and let parity rebuild without loosing any data?  If so does it matter what slots I use for the drives?  Do I need to retain the old drive order?

 

Thanks in advance for any advice.

[JorgeB]

7 hours ago, mfarlow said:

I don't really care about the time it will take to rebuild parity, so my question is, can I just perform a new config and let parity rebuild without loosing any data?

Yes, as long as you don't assign a data drive to a parity slot, if you now which one is parity it's a simple process, with single parity drive order doesn't matter so you can even check parity is already valid before array start, should still run a parity check after to make sure all is well.

[mfarlow]

Thank you for the quick response.  That makes me feel a lot better.  Fortunately I know the serial number for the parity drive.

 

When I do the new config, do I want to preserve the assignments, or would it be better not to if I don't know the order?

 

Again thanks for all the help!

[JorgeB]

17 minutes ago, mfarlow said:

do I want to preserve the assignments

As you prefer, if they are mostly assigned in the correct slots you can keep them.

[trurl]

Note that any other changes to your configuration since that flash backup are also gone. Any settings you made in the webUI, including docker installs.

[mfarlow]

Thanks for pointing out the other configuration items!  I'm OK with rebuilding everything back as long as my data stays intact.