A lot has been written concerning the advantages of Hardware VS Software RAID. In my musings I considered this. The new thing for the day is multi core processors. The biggest problem with software raid has been that it took CPU time away from the system. With multi core procs running at current speeds does this even out the playing field from a REAL WORLD cost/performance perspective? especially if you were counting on getting older technology (on the cheap) to do RAID.
Lets say I want to run RAID on a workstation MB with PCI-E and PCI-X slots. A dedicated PCI-E RAID controller is going to cost me BIG BUCKS. A PCI-X can be had some what cheaper but comes in 66Mhz=533MB/s, 100Mhz=800MB/s & 133 Mhz=1.06 GB/s bus speed flavors. REAL WORLD to me means what would a consumer reasonably spend on hardware RAID if he wanted to go that route(Personally I don't know but in general I will rely on the economic man theory--as little as possible). So in spending as little as possible to get the best effect in consideration of multicore processors to off load the CPU overhead -- Is software RAID more attractive under this senario? Anyone seen any benchmarks of software RAID under a multiprocessor senario? Any third party packages to assist in software RAID -SCSI.
Thanks
Lets say I want to run RAID on a workstation MB with PCI-E and PCI-X slots. A dedicated PCI-E RAID controller is going to cost me BIG BUCKS. A PCI-X can be had some what cheaper but comes in 66Mhz=533MB/s, 100Mhz=800MB/s & 133 Mhz=1.06 GB/s bus speed flavors. REAL WORLD to me means what would a consumer reasonably spend on hardware RAID if he wanted to go that route(Personally I don't know but in general I will rely on the economic man theory--as little as possible). So in spending as little as possible to get the best effect in consideration of multicore processors to off load the CPU overhead -- Is software RAID more attractive under this senario? Anyone seen any benchmarks of software RAID under a multiprocessor senario? Any third party packages to assist in software RAID -SCSI.
Thanks