I have a test RAID controller on my network which hosts a very large RAID 6 (11 drives, 3TB each). One of the drives failed, and the array is now rebuilding. At this rate, I think it will take about 3 days to finish. If I write new data to the array, would it decrease my chances of a successful rebuild?
I might write about 1 GB worth of new data in the form of lots of small files. Would this significantly delay the progress of the rebuild?
Best Answer
IO time will be consumed by the operations which will be time not available for the rebuild, slowing things down slightly, but it's definitely safe to write to the array while rebuilding.