On Tue September 29 2009, you wrote: > I apologize that this question is not directly related to mdadm, but I > thought some of the list might have experience in a mixed > Linux/Windows environment. I am running a mdadm RAID5 file server on > a Ubuntu 8.04 Linux box on a gigabit LAN. I am using a Highpoint 2680 > card at PCI-E 4x as the controller (I have also tried the motherboard > SATA connectors directly). I am running SAMBA on this box to share my > RAID5 with my main Windows PC running Windows 7 64 bit (although I > have gotten similar results with Vista also). > My question is related to what I consider slow speeds when reading > from or writing to the array from my Windows box. I get anywhere from > 20-30MB/s in either direction when transferring a single large file (3 > GB as an example). I haven't done detailed benchmarking on the array, > but spotchecks of file transfers from another drive on the same linux > box are giving me speeds above 100MB/s for reads and writes. > Does anyone have any suggestions for improving my speeds across the > network? I don't know if SAMBA is causing some kind of bottleneck or > if Windows is not playing nice or if it's something with my network > configuration, but I was hoping to get alot closer to saturating the > gigabit connection. Any help would be greatly appreciated. I had rather sucky GbE stats till I tweaked a bunch of linux network settings. Things like the default buffer sizes and what not. Boosted the quite low 30MB/s I was getting to over 90MB/s. Look up some guides to tweak each os's network settings, and you should beable to speed things up. -- Thomas Fjellstrom tfjellstrom@xxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
