so i have 3 cages of 4 slots. 12 slots total. 1 parity x 11 drive data. 

i want to add a 2nd parity drive. so itll be 2 parity x 10 data.

i will be replacing the smallest data with the 2nd parity to take its slot.

 

what will be the best way to add the second parity drive??

 

Bump.
(I also would like to know best practices of adding a 2nd parity drive)

26 minutes ago, Pbruce1 said:

Bump.
(I also would like to know best practices of adding a 2nd parity drive)

OP needed to remove a data disk to make room for parity2. Is that your situation also?

Oh i see. No, i've got available slots, just want to ensure I add 2nd parity drive correctly (I cant find any official documentation to address this)

2 minutes ago, Pbruce1 said:

Oh i see. No, i've got available slots, just want to ensure I add 2nd parity drive correctly (I cant find any official documentation to address this)

Probably because it is thought to not need special instructions as it is just stop array; assign 2nd parity drive; start array to build 2nd parity drive.

Excellent.
Thanks itimpi, im pretty new as you could tell

On 1/20/2021 at 9:37 PM, itimpi said:

Probably because it is thought to not need special instructions as it is just stop array; assign 2nd parity drive; start array to build 2nd parity drive.

 

Sorry for bumping this old thread, but I have a question regarding adding a second parity.

When Unraid starts to build the second, newly added parity drive, is the first one rebuild too? This would mean that for the time being there is no functioning parity drive? If another drive fails during this procedure, I'd be in big trouble?

3 minutes ago, Helmut said:

is the first one rebuild too?

No, it's checked though.

4 minutes ago, JorgeB said:

No, it's checked though.

 

Ah, ok thank you for the quick answer. So in theory there is a higher possibility of failing since it goes through more mechanical stress. But eventually I have to do a parity check anyway. Thank you!