Hi All, I am doing some tests with gluster (3.1) and have a problem of not getting higher throughput than 1 Gb (yes bit!) with 4 storage bricks. My setup: 4 storage bricks (dualcore, 4GB mem) each with 3 sata 1Tb disks, connected to a switch with 1 Gb nics. In my tests I only use 1 SATA disk as a volume, per brick. 1 client (2xquad core, 16 GB mem) with a 10Gb nic to the same switch as the bricks. When using striped of distributed configurations, with all 4 bricks configured to act as a server, the performance will never be higher than just below 1 Gb! I tested with 4, 8 and 16 parallel bonnie++ runs. The idea is that parallel bonnie's create enough files to get distributed over the storage bricks. And all this bonnie's wil deliver enough throughput to fill up this 10Gb line. I expect the throughput to be maximum 4Gb because that's the maximum the 4 storage bricks together can produce. I also tested the throughput of the network with iperf3 and got: - 5Gb to a second temporary client on another switch 200 Km from my site, connected with a 5Gb fiber - 908-920 Mb to the interfaces of the bricks. So the network seems ok. Can someone advise me on why I don't get 4Gb? Or can someone advise me on a better setup with the equipment I have? Peter Gotwalt
