I recently overhauled my RAID array - I now have 4 drives arranged as RAID 0+1, all being 15K 147gig Fujitsu's, and split across two buses, which are actively terminated to give U160 speeds (and I have verified this). The card is a 5304 (128M cache) in a PCI-X slot.
This replaces a set of 6 7200 rpm drives as RAID 5 which were running at 40meg speeds due to non LVD termination. I would expect to see a large speed increase wouldn't I ? But it remains about the same - around 45 meg/sec for reading a large file (3 gig or so) and half that for copying said file. These are 'real world' tests in the sense that I us the drive for building large ISo images and copying them around - I really dont care what benchmarks say, it's the speed of these two operatiosn that I want to make fats. I've tried all the possible stripe sizes (128k gives the best performance) but still I only get the above speeds. Just one of the 15k drives on it's own performs better than this! I would expect the RAID-0 to give me at least some speedup, or in the worst case be the same, surely ? Booting up Windowws and running some tests gives me far better performance however, so I am wondering if there is some driver issue here. Has anyone else seen the same kind of results ? I am running the latest stable for amd64 and the machine has twin opteron 242's with a gig of RAM each. surely it can do better than this ? -pcf. _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"