I am sure I have missed it in my search for an answer.  How do I replace a parity drive?  My old 2TB drive died and I have bought a 3TB to replace it.  The new drive is installed but I don't know what to do next.  Any help would be super.

I am sure I have missed it in my search for an answer.  How do I replace a parity drive?  My old 2TB drive died and I have bought a 3TB to replace it.  The new drive is installed but I don't know what to do next.  Any help would be super.

Assign it as the parity drive, and then start the array.  (assuming you are on 5.0beta8 or greater.)

 

If on 4.7, you cannot use the 3TB drive unless you fake it to act as a 2.2TB drive. (add an HPA to make it look smaller than 3TB)

Thanks for the response.

 

So when I get to my main page and assign it as parity it says it is the wrong drive and won't let me start the array.  Any thoughts?

One additional item.  I have a second disk in my group that is showing read.  Not sure why.  Could that be contributing?  I don't believe it is bad.

One additional item.  I have a second disk in my group that is showing read.  Not sure why.  Could that be contributing?  I don't believe it is bad.

Then what makes you think the parity disk is bad?

 

unRAID cannot recover from two failed disks.  If one failed disk caused the other on the same disk controller to appear as failed, then you must power down, disconnect the failed drive, power up, and then test to see if the second drive appears to work.  (run a smartctl report)

 

If the disk appears to work, about all you can do is stop the array, assign the working drives as you like, then set a new disk configuration.  That will immediately invalidate any prior parity calculations.  When you next start the array, parity will be calculated onto the new parity drive.

 

What version of unRAID are you running?    (You might want to post a copy of your syslog  and a screen-shot showing your disabled drive.  Just in case I am not understanding your situation)

 

Joe L.

The Parity drive I pulled out fails SMART.  I ended up pulling it out and running WD tools on it and it tells me the drive is beyond repair.  It has too many bad sectors. 

 

I am running 5.0 b14.  All I am really looking to do is start the array and have it rebuild parity.  I haven't been trying to recover the second drive in red.  Up till this point nothing has been wrong with that drive.

 

 

I am attaching a screen of my main page.

 

Thanks for the help.  Some of this stuff isn't making sense for me.  I'm a bit of a noob it seems.

 

Here is the bottom portion of my main screen.

I just did some additional reading.  I want to make sure I don't mess something up.  If I were to create a new config based on the drives you see above will my data and share information remain?  Will it simply allow me to assign the new parity drive and leave the others as they are? 

I just did some additional reading.  I want to make sure I don't mess something up.  If I were to create a new config based on the drives you see above will my data and share information remain?

That is my understanding.  The data should not be affected.  A new config will immediately invalidate parity. (and in your case, you want it re-calculated anyways)

  Will it simply allow me to assign the new parity drive and leave the others as they are?

Yes.

Thanks for all the help.  Parity rebuild in process.