Our theoretical peak throughput is about 4Gbytes/sec or 4 x 10Gbits/Sec, you can see from the graph that the maximum recorded is 3.6GB/Sec. This was probably during periods of large sequential IO. We have a small cluster of clients (10) with 10Gbit ethernet but the majority of our machines (130) have gigabit. The throughput maximum for the 10Gbit connected machines was just over 3GBytes/Sec with individual machines recording about 800MB/Sec. We can easily saturate our 10Gbit links on the servers as each JBOD is capable of better than 500MB/Sec but with mixed sequential/random access it seems like a good compromise. We have another 2 server Gluster system with the same specs and we get 1.8GB/Sec reads and 1.1GB/Sec writes. What are you using to measure your throughput? On Sun, 2014-12-07 at 20:52 -0500, Andrew Smith wrote: > I have a similar system with 4 nodes and 2 bricks per node, where > each brick is a single large filesystem (4TB x 24 RAID 6). The > computers are all on QDR Infinband with Gluster using IPOIB. I > have a cluster of Infiniband clients that access the data on the > servers. I can only get about 1.0 to 1.2 GB/s throughput with my > system though. Can you tell us the peak throughput that you are > getting. I just don’t have a sense of what I should expect from > my system. A similar Luster setup could achieve 2-3 GB/s, which > I attributed to the fact that it didn’t use IPOIB, but instead used > RDMA. I’d really like to know if I am wrong here and there is > some configuration I can tweak to make things faster. > > Andy > > On Dec 7, 2014, at 8:43 PM, Franco Broi <franco.broi@xxxxxxxxxx> wrote: > > > On Fri, 2014-12-05 at 14:22 +0000, Kiebzak, Jason M. wrote: > >> May I ask why you chose to go with 4 separate bricks per server rather than one large brick per server? > > > > Each brick is a JBOD with 16 disks running RAIDZ2. Just seemed more > > logical to keep the bricks and ZFS filesystems confined to physical > > hardware units, ie I could disconnect a brick and move it to another > > server. > > > >> > >> Thanks > >> Jason > >> > >> -----Original Message----- > >> From: gluster-users-bounces@xxxxxxxxxxx [mailto:gluster-users-bounces@xxxxxxxxxxx] On Behalf Of Franco Broi > >> Sent: Thursday, December 04, 2014 7:56 PM > >> To: gluster-users@xxxxxxxxxxx > >> Subject: A year's worth of Gluster > >> > >> > >> 1 DHT volume comprising 16 50TB bricks spread across 4 servers. Each server has 10Gbit Ethernet. > >> > >> Each brick is a ZOL RADIZ2 pool with a single filesystem. > > > > > > _______________________________________________ > > Gluster-users mailing list > > Gluster-users@xxxxxxxxxxx > > http://supercolony.gluster.org/mailman/listinfo/gluster-users > _______________________________________________ Gluster-users mailing list Gluster-users@xxxxxxxxxxx http://supercolony.gluster.org/mailman/listinfo/gluster-users
