(original article)

Re: Converting RAID5 to RAID6 and other shape changing in md/raid

12 February 2011, 20:50 UTC

No, it is not possible revert a reshape that has already started - sorry.

Two weeks does seem rather long... What device is your 'backup file' on? If it is a particularly slow device and you have a faster one available, you could stop the array, move the backup file to a better device, and re-assemble the array...