new question about upgrading hardrives

[aabbcc112233]

hi

 

ive got the following hardrives

 

parity -  1.5tb

disk 1 -  1tb

disk 2 -  1tb

disk 3 -  1tb

disk 4 -  1.5 tb

 

disk 4 has a red dot so i think it has failed. ive bought 2 x 2tb hard drives .

 

my question is i want to change disk 4 with a 2tb drive but it says disk is larger than parity drive and then i want to replace the parity drive with another 2tb

 

can someone tell me the best way of doing this

 

thanks

[prostuff1]

read up in the unRAID Wiki on the parity swap option for rebuilding and changing a parity drive at the same time.

 

 

NOTE: before doing this I would HIGHLY suggest stress testing the new 2TB drive before using it in a rebuild.  You do not want that drive to be DOA/bad in any way while you are doing this upgrade.

[aabbcc112233]

so shall i replace my parity drive first or the data 4 drive ? still confused

[aabbcc112233]

done a bit more reading do i have to do a swap-disable ?

[Rajahal]

Yes, you will want to run a swap-disable (what is commonly called a Parity Swap).  Here's the instructions copy/pasted from the wiki:

 

You must replace a failed disk with a disk which is as big or bigger than the original and not bigger than the parity disk. If the replacement disk is larger than your parity disk, then the system permits a special configuration change called swap-disable.

 

For swap-disable, you use your existing parity disk to replace the failed disk, and you install your new big disk as the parity disk:

 

1. Stop the array.

2. Power down the unit.

3. Replace the parity hard disk with a new bigger one.

4. Replace the failed hard disk with you old parity disk.

5. Power up the unit.

6. Start the array.

 

When you start the array, the system will first copy the parity information to the new parity disk, and then reconstruct the contents of the failed disk.