Well... You may have errors on any sort of RAID array, or on JBOD disks. It's just that there's nothing you can do about it with RAID 0 or JBOD, besides just going to a backup. I'm pretty sure you can do a volume set verify on any RAID level that has redundancy (RAID 1, 3, 4, 5, 6, 10, etc).

Also, I just found out there's a new update for the SATA-based Areca-controllers (firmware 1.46) that adds support for automated schedule volume check:
http://faq.areca.com.tw/index.php?vi...ckfaq&Itemid=2

This is good news! That means we can add this into all of our customers (besides one using a 3ware card and another using software RAID).