Actually, the Intel 80302 I/O processor only works at 66Mhz, the 80303 on the 2810sa works at 100MHz

See page 14 of the chip design design spec PDF located at
http://www.intel.com/design/iio/specupdt/273355.htm

Regards

Nick

We bought one expecting it to be okay - Adaptec, yeah, should be ok. We had heaps of problems with Promise (hehe broken promises) SX6000's corrupting arrays when bad disks crop up.

The 2410SA was a disappointment. The management tool still doesn't work, a year after we brought it. The service crashes after startup.
There is no provision for any activity LED's on this card. There are some headers, but i was told it was for some secret purpose by Adaptec and that there are/will be no activity LED headers on this card. Not good enough.

Add that to the fact that we have had random lockups under load.
We also had a drive fail - the machine froze.
Upon any issue with a member disk, the controller will cease to service requests for some length of time, plus the OS will jerk and hang while the controller thinks. Then if you are lucky, the array will run in limp-mode.

This card caused so many problems we stuck it in the cupboard and bought a LSI MegaRaid SATA 150-6. That runs okay, but it also lacks an activity header.

I researched this topic a lot when considering data storage options for a patent data site. One of the things I had heard (and my research confirmed) is that RAID cards with integrated processors seem bottlenecked by their processor.

Counterintuitively (to me at least) it ends up being faster to ask the CPU to do the RAID calculations because modern CPUs totally outclass the RAID processors and can increase speed without putting much of a load on the system (