We're looking at Areca ARC-1213-4i or ARC-1223-8i [1] cards for doing RAID 5, 6 or 10 arrays. http://www.areca.com.tw/products/sas6g_internal.htm
They're not listed on the OpenBSD-current man page for arc(4). They're reported by some to be essentially the same as the long-discontinued ARC-1210/1220, however, which is listed as supported. Is there any particular reason the ARC-1212-4i or ARC-1223-8i will not work with OpenBSD 5.1 and newer's arc(4) driver? (Will arc(4) deal with Areca's generically named RAID-on-chip (ROC), listed in specs for the 1213, vs. their more specific IOP3## RAID processors listed for the ARC-1231ML et al? Is there actually a significant difference there?) If you have experience with the ARC-1213 or 1223, what did you find? Thanks in advance. Richard