Current favored SCSI RAID controller?

[Scott Lambert]

I haven't found any recent discussions about which SCSI RAID controllers
are well supported and have usable management interfaces from within
FreeBSD.

I am currently trying to spec out a new mail server for running
Postfix/Cyrus-imapd for more than 10,000 e-mail accounts.

I think I'm going to want to go RAID 5 for the capacity.  I would
like to have a management interface to the array that permits a high
confidence that a junior admin won't accidentally rebuild the array from
the new drives rather than the existing, remaining members of the array
if I'm out of town when a drive goes out.  I've had that happen at past
employers.

I don't want any dependence on X for the management utilities.

I want to be able to add drives and build an array without going to the
BIOS if I need more disk space in the future.

I have an Intel SE7520JR2 motherboard to build the server around.  Are
the Intel RAID controllers all re-branded LSI boards?  From some of the
mailing list posts, I get the impression that at least the SRCU42X is an
LSI chipset.

-- 
Scott Lambert                    KC5MLE                       Unix SysAdmin
lambert at lambertfam.org