I have just setup my new server (totally new to UNRAID) and assigned my disks. 

UNRAID is currently doing a Parity Sync - Do I need to wait for this to finish before I can format the drives as they are currently showing under - Unmountable disks present:

 

Or can I go ahead - format them and start using the system and the Parity check will carry on in the background? 
 

You can format now, it will take several minutes with v6.7.2, much faster if using v6.8rc.

 

You can also use the array during the parity sync but is not recommended since both the sync itself and the data transfer will be slower than normal, though data transfer should be better with v6.8, sacrificing the sync.

Thank you Johnnie 

 

Thats fine. It will be a while before its all been used 100% Even tho my drives were find in my Synology NAS - UNRAID is showing errors with 2 drives. 

So once the Parity Sync is done I will need to swap out those 2 disks which are showing as faulty. 

Just want to get Plex installed to keep the kids happy

 

 

Edited December 10, 20196 yr by IKWeb

10 minutes ago, IKWeb said:

UNRAID is showing errors with 2 drives. 

SMART errors or read errors? Some SMART warnings can be unrelated to disk health, e.g. UDMA CRC errors, you can post the diagnostics if you want (tools -> diagnostics) so we can take a look.

Attached the errors to this reply. Copy and past didnt work to well. 

 

From the research I have done - I think replacing them is the best option?

3 minutes ago, IKWeb said:

From the research I have done - I think replacing them is the best option?

Usually yes, some time these can be false positives, you'll know after the parity check finishes, if there are any errors on the main GUI page for these disks they need replacing, you'll also get notified, if system notifications were configured, and it's highly recommended to do so.

Thank you for the extra advise - I have 2 x 4TB disks to swap out once the parity check is done and compleated.