3 cycles? If it keep taking this much time I probably have to wait a week for this to finish (going from 2x6TB to 3x6TB).There are 3 cycles of parity checking (3 partitions) so don't worry if the percentage complete falls back (it's probably jumped partitions).
As Rusty said, it covers everything. But the OS and swap partitions are relatively small, and take far less time.3 cycles? If it keep taking this much time I probably have to wait a week for this to finish (going from 2x6TB to 3x6TB).