My array is currently a majority 16TB drives, but there's a few 8TB N300s in there. 2 of them have recently started throwing SMART errors so I want to replace them with 2 16TB drives. I know the normal replace procedure is to pull one drive, replace with new one, assign it to the same slot in the array, allow parity to rebuild, but can I do this with 2 drives at once?

 

Thanks

If you have 2 parity drives, you can replace two data drives. I'd do it in maintenance mode in case it goes south, so you can recover if another happens to fail during the re-build.

I do have 2 parity drives, so would it be:

1. Enable maintenance mode
2. Shutdown
3. Replace both drives
4. Boot up
5. Allocate drives to the pool
6. Rebuild array through parity
7. Once complete, disable maintenance mode

Thanks

Maintenance mode is optional.

Thank you - I'll go ahead doing both at once then