I have a 5 data drive, 1 parity drive box running 6.0.1. Im about to upgrade to 6.5.3 if it makes any difference.
I am going to upgrade my last remaining 2TB drive to a 3TB drive (not at the same time as the version upgrade!). Normally I would copy the data off it to the other drives or external before upgrading but this time im thinking I will let the parity do its thing and rebuild the drive. Ive never done this before, so im a bit paranoid about corruption or whatever. Is there a built in method, or a recommended method, for testing that the rebuild was successful (ie data identical)? Or do i just have to trust it?
Im going this way this time because im feeling a bit too lazy to do the manual copy and copy back but if I ever have a failed drive im going to have to have trust in the parity, so might as well test it while I still have the old copy of the data!