> We're looking into getting an Adaptec 2200S or the Megaraid 320 2x > which have better processors, and hopefully better performance. We > feel that the use of the AIC7930 as the CPU on the ZCR just doesn't > cut it and a faster raid controller would work better. Does anyone out > there have any experience with these cards with postgresql and linux? > If so, would you be willing to share your experiences and possibly give > a recommendation?
I have worked with at least four major name brands of scsi and ide raid controllers and so far the one I have found to be generally the most featured and fastest is the ICP Vortex controllers (http://www.icp-vortex.com/). It is also more expensive than the others but has been worth the cost IMHO. It has a command line utility to measure disk performance and I believe the source code for it is available. I have measured over 200 MB/s reads off these controllers on 3u disk array units. I'm sure I could have gotten more with additional tuning. Fred ---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster
