RAID6 is pretty safe. If you're using ZFS that's a RAIDZ2, you can lose 2 drives in a volume.
RAID5 can be pretty risky with large drives that are the same type.
>conflicting data between 2 drives, but I've never seen that happen in the real world
Heh, run enough servers and you'll see everything eventually. Had a really fun one where a hardware raid card was telling us that writes were successful, but when data was coming back corrupt. It was writing bad data to two of the drives in the array.
RAID5 can be pretty risky with large drives that are the same type.
>conflicting data between 2 drives, but I've never seen that happen in the real world
Heh, run enough servers and you'll see everything eventually. Had a really fun one where a hardware raid card was telling us that writes were successful, but when data was coming back corrupt. It was writing bad data to two of the drives in the array.