Thanks for your explanation. How's this one http://www.supermicro.com/products/accessories/addon/DAC-ZCRINT.cfm
It uses Intel 80303 I/O processor boards? I'm planning to build my Cyrus-IMAPD on this HW.
Well, I have something like it, an Intel SRCZCR. It is also a zero-channel RAID adapter, and yes, it is a real honest hardware RAID, but it is not PCI-X.
But it is a *piece* *of* *crap* performance-wise, and that's using U320 SCSI drives on the host adapter. So, it will work well if you don't need much performance. But otherwise, get something better. Anything that hasn't got NVRAM (64MB or more) and an on-card SCSI U160 or U320 controller is not worth thinking about IMHO (for SATA that translates to on-card NCQ SATA controllers, I suppose).
Do you have some figures?
You will notice Intel itself stopped with this sillyness and their newer zero-channel adapters feature 128MB of DDR333 RAM and a IOP-321 processor...
Thanks. I'll look into that. I'm not sure if support is already added to the 2.6.x kernel. Most of us run Cyrus on Linux/BSD, right?
Regards, Norman Zhang --- Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
