tir, 23,.10.2007 kl. 10.02 -0700, skrev Kevan Benson: > Vincent Régnard wrote: > > Hi all, > > > > We are presently trying to tune our non-gluster configuration to > > improve glusterfs performance. My config is gluster > > 1.3.7/fuse2.7.0-glfs5, linux 2.6.16.55. We have 3 clients and 3 > > servers on a 100Mb network with 5ms round trip between clients and > > servers. The 3 clients replicate with afr on client side over the 3 > > servers. > > I can imagine that reducing the roundtrip between servers might help ? > > But I cannot actually do anything for that. The only thing I might be > > able to do is to configure some QOS. Have you any suggestion about how > > we should do that ? Would giving priority to tcp/6996 between clients > > and servers really help ? > Vincent: It's a big roundtrip. I have 0.1 or less, but it's GB NIC's and switch. But it's cheap this days.;) > Separate network connections to each AFR subvoume. VLAN your switches > and implement separate logical networks for each connection to the AFR > subvolumes using secondary (or even tertiary) nics in each client. You > can effectively double or triple your throughput while increasing > redundancy. Kevan: Is this better than bonding - or equal? Jumbo frames are also good for speed and lowering the server and switch load. -- Einar Gautun einar.gautun@xxxxxxxxxxx Statens kartverk | Norwegian Mapping Authority 3507 Hønefoss | NO-3507 Hønefoss, Norway Ph +47 32118372 Fax +47 32118101 Mob +47 92692662
