Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
> On 20 Oct 2015, at 17:47, Lionel Sausin <ls at numerigraphe.com> wrote: > > > > Le 20/10/2015 17:30, Joeri Casteels a écrit : >>> Protocol A an async, C is sync. So you're probably hitting the network >>> limit on C. >> I don’t think so since it has a direct 20G trunk in-between with perf i get 19.6Gbit/s on single threat. With A (async when i monitor the network it also hits 2x the network speed as C does) > "sync" means the round-trip time (down to the remote disks) is what counts, not the bandwidth. So what causes the 1/2 difference then if i read on forum’s most people don’t even see a speed difference between protocol A and C… btw both’s primary and slave node are identical hardware wise so it’s not that the disks are the limiting factor. > _______________________________________________ > drbd-user mailing list > drbd-user at lists.linbit.com > http://lists.linbit.com/mailman/listinfo/drbd-user