I started a migration process from RAID5 with 3 disks to RAID6 with 4 disks. The NAS showed extensive use of the hard drives for almost a week, while performing the migration. Then it reached %90.23 and seems to stop using extensively the hard-drives. For a few hours it shows the same percentage of the work completed --- %90.23. How can I know if there is a problem?
Thank you.
Daniel