I currently have a 14tb and a 12tb for dual parity. I want to upgrade the 12tb to a new 14tb. I have a case with hot swap drive cage. Can I just stop the array, swap the 12tb for the 14tb, assign the new 14tb as a parity drive, then restart the array and let it rebuild? Is it really that simple?

It would be safer to power down to swap the drive.

I appreciate the advice. I shut it down, swapped the drives, and Parity Sync has begun. After it completes, I plan to remove one of the original 4tb drives and upgrade it with the 12tb I just took out and pick up another 14tb while still on sale and replace the other 4tb drive from the original install. 

 

Thanks Again Jonathan

@BarryrodIt's not mandatory, but I recommend a parity check before replacing data drives. The parity sync isn't immediately verified, I've seen issues with new drives that aren't caught until the first check.

@JonathanMThanks for the advice. I will run a full parity check after the sync is complete. I am not in a rush to get this done, would rather it be done with zero issues lol

@JonathanM Should Unassigned Devices not show anything during Parity Sync? I have an SSD I keep in unassigned devices and use as appdata for my plex. Seems to still be working, but can not see the drive on the GUI

 

Dunno, that would be a question for the UD support thread.

 

Frankly as long as it's still accessible I'd wait to see if the display returns, then if you feel like it follow up with an observation in the support thread so @dlandon can follow up on it if he feels it's necessary.

Yes it is still assessable. I was able to plug in a new External drive and see it under pre-clear and begin the preclear. I know it is not necessary anymore, but I like to run it on externals to find any issues prior to shucking