When adding a second parity disk (parity 2) it appeared that Unraid did writing to it, & reading from the original parity (disk 1)
I didn't see any data disk activity
So did it just do a parity sync between the 2 parity disks - comparing parity with stored parity
or did it do a parity check, read all the data disks and the parity disk, comparing parity with stored parity
If it only did a parity sync, should I now do a parity check ?
& does a parity check take more time to complete with 2 parity disks ?