I managed to make another phone call to Atto. Officially, they won't endorse the ExpressSAS R30F for use under OS X. The iPass cable from the drive bays in a Mac is too short. It can apparently be overcome with a longer cable.
So the R30F is out.
Other solutions from Atto will. The ExpressSAS R348 (8int or 4int/4ext) and ExpressSAS R380 (8ext) will work with OS X officially, so it will be supported. Only 8 ports though, and I was trying to eliminate the need for SAS Expanders to increase drives. Even a more expensive RAID card seems to be less expensive than using expanders with an 8 port unit.
Atto also seems to be more expensive than most of its competitors.
Cost wise, the Areca ARC-1680ix series would compare with CalDigit at the reduced pricing you hinted at.
I used the EnhanceBOX line as a comparison, as it's a nice solution, and is well supported by RAID card manufacturers.
(ex. ARC-1680ix12 + EnhanceBOX E8MS + cables/external bracket + 8*320GB enterprise drives vs. CalDigit + 2*HDElement@1TB+2*ext cable).
Both would be equivalent in ease of hardware installation. CalDigit and Atto may be a little less daunting on the software side, if someone isn't familiar with using a browser to access and manage the RAID system as Areca does.
So for similar money, I can get a better throughput from the Areca. The real downside is, technical support. They are a Taiwanese company, and I don't speak mandarin, so contact would likely be via e-mail. Thus far, all e-mail sent has been answered by one person, Kevin Wang. His responses are a little cryptic, making it hard to communicate. Atto and CalDigit have US phone numbers, and english (native) technical support. For me, this may not be much of a problem, but could for others.
So the R30F is out.
Other solutions from Atto will. The ExpressSAS R348 (8int or 4int/4ext) and ExpressSAS R380 (8ext) will work with OS X officially, so it will be supported. Only 8 ports though, and I was trying to eliminate the need for SAS Expanders to increase drives. Even a more expensive RAID card seems to be less expensive than using expanders with an 8 port unit.
Atto also seems to be more expensive than most of its competitors.
Cost wise, the Areca ARC-1680ix series would compare with CalDigit at the reduced pricing you hinted at.
(ex. ARC-1680ix12 + EnhanceBOX E8MS + cables/external bracket + 8*320GB enterprise drives vs. CalDigit + 2*HDElement@1TB+2*ext cable).
Both would be equivalent in ease of hardware installation. CalDigit and Atto may be a little less daunting on the software side, if someone isn't familiar with using a browser to access and manage the RAID system as Areca does.
So for similar money, I can get a better throughput from the Areca. The real downside is, technical support. They are a Taiwanese company, and I don't speak mandarin, so contact would likely be via e-mail. Thus far, all e-mail sent has been answered by one person, Kevin Wang. His responses are a little cryptic, making it hard to communicate. Atto and CalDigit have US phone numbers, and english (native) technical support. For me, this may not be much of a problem, but could for others.