> so played around a bit but always have low sync-performance with drbd at > 74mb what is 1/3 from the available bandwidth to the other node; > whatever i set with the parameters i will not get more throughput;
Is that bits or bytes? In either case, that's quite slow. Over a single Gb link I've been able to get around 850 megabit of throughput on the initial sync. (RAID 5, 10K RPM SAS disks) > i assume that the rest of the performance is lost on latency on protocol c > on my hardware and therefore tuning some parameters in drbd.conf will not > take effect - is this correct? You have a bottle-neck somewhere; I doubt it's in DRBD. Have you verified that your disks and / or network can achieve any more throughput than you describe? The DRBD docs include some basic disk throughput tests. iperf is great for testing network throughput. -Ben _______________________________________________ drbd-user mailing list [email protected] http://lists.linbit.com/mailman/listinfo/drbd-user
