So yesterday, after about two months of uptime, my UNRAID server suddenly froze and everything was unaccessible.  I did a reset via IPMI, and upon boot, the BIOs stated that my parity drive failed the smart test (the first drive).  I allowed it to continue into UNRAID and the parity check ran, giving no errors and everything is back as per usual.  

 

I ran a SMART test and got this:

 

SMART overall-health self-assessment test result: FAILED!

Drive failure expected in less than 24 hours. SAVE ALL DATA.

 

for the parity drive.  So I'm thinking about buying another 2tb disk, replacing the parity drive and after the RMA, adding the other drive to the array.  What should I do?

 

When the new drive arrives should I just replace the parity disk and allow it to rebuild?  Is it that simple, or am I missing something?  Thanks to all responses.  I have 6.5tb of data, so as anyone else, I'm very nervous/cautious.  

 

Also, should I shut down the server until I get the new drive to be on the safe side?

Yes, it is that simple. You can safely read from the array. DO NOT write to it. You may get another freeze though, unless you remove the failing drive.

Yes, it is that simple. You can safely read from the array. DO NOT write to it. You may get another freeze though, unless you remove the failing drive.

 

Back up and running.  Now, time to RMA that drive...

I think when I get my unraid system up and running I'm always going to have a spare drive sitting around just in case you know.

Yeah, it's always a good idea.  I usually get everything in one day from newegg (New Jersey > NYC), but the problem happened on a Saturday and UPS doesn't ship on the weekend