LSI SAS cards are Mac Pro compatible
You'll have to put it in a PC to access the firmware. LSI doesn't have EFI firmware at all.
I presume you're using it for Windows, as they don't have OS X drivers either.
LSI does make Apple's RAID card, but it's specific to the MP, and they don't offer these features on thier own models (Apple wrote the firmware and drivers for their card).
I've a couple of Areca cards, and have found them to be quite reliable (rock solid stability). They also offer a better value over ATTO's products as well, though they are nice as well, and both have models that will work in EFI based systems (actually meant for Itanium machines, but works in MP's as well). Drives can be the biggest headaches with SAS controllers, but not just thiers. SAS is just picky.
From my very first test on a Mac Pro (Nehalem) belonging to a friend, i can say that at least some LSI SAS cards are compatible.
With my LSI SAS3442E-HP (HP OEM version of LSI SAS3442E-R) an Apple LSI MPT kext is loaded, and the Savvio drive connected to the controller was available.
Of course no raid configuration is available, cause the controller can't interact with EFI at system boot-up.
A simple trick would be to connect the controller to a PC, set the raid volume, and try your luck with OS X.
But the card would be unbootable. That would a big problem, at least for my friend, cause he wants to connect two Intel SDD's to the SAS controller, configure them in software stripe mode (raid 0)and boot from that array.
But there is a chance that could be investigated:
on LSI web site there is an EFI firmware available, It is meant for IA64 architecture, but maybe it would work with Apple EFI implementation as well.
I asked about that with an email sent to LSI support people, but i am afraid that i will get no answer at all, cause they don't support Mac (but i understand that they produce the Apple SAS card).
The last sentence make me think about a possible shortcut for configuring the volumes under MAc OS X: maybe if there is an Apple utility for the Apple controller, it could work as well with other LSI devices...
After all a single LSI software supports all (or at least most) of their controllers.
Is there a downloadable utility from Apple?
If yes, please provide a link, and i'll let you know if it works or not.
Unfortunately i don't own a Mac at the moment, and i am just helping a friend. But i would be more than happy to share my findings, if i succeed.
The SAS3442Ex cards are quite cheap (i bought mine new, from a stock, for around $50, less than the average street price), and have the choice to flash either IT (HBA) or IR (RAID) firmware. With the latter, raid 0, 1 and 10, plus JBOD, are supported.
Nothing very special, but the MPT engine and the 8-lane PCI-E connection allow for a very good bandwidth.
Unfortunately i own an OEM version, and i know all too well that there is the chance that it would accept only HP firmwares! I remember a parallel scsi card for PCI-X bus, it was an LSI with HP firmware as well, and all my efforts to flash an LSI firmware failed! I know for sure that the trick can be done, but i couldn't find a nice soul wanting to share the secret with me :-(
If anyone has done some further testing, please post your results.
I'll do the same as soon as i have the time to experiment a little with my friend's Mac Pro.
have fun
CJ