Hi, if you really want to use these tiny 2 TB HDDs - yes, RAID 6 (2x - the second for the backup system on a physically different location) is a good choice. But: If you can, buy some 8-12 TB HDDs and forget the old rusty tiny HDDs. You'll save a lot at the system - and power. ext4 is fine. In my experience, it is rock-solid, and also fsck.ext4 is fairly qick (don't know what Roy is doing that it is so slow - do you really made a full-fledged ext4 with journal or a old ext2 file system?^^) Another way would be deploying zfs with raid-z2 (Yes, I can hear the screams :-D ) Best regards, Michael Fritscher
