id summary reporter owner description type status component version resolution keywords cc guest host 7182 Slower network transfer rate form host than any other machine on the net Diputación de Ávila "I have a two nodes (Node01 and Node02) cluster, each one is a blade, as host machine running CentOS 5.4 Linux 2.6.18-164.11.1.el5 #1 SMP Wed Jan 20 07:32:21 EST 2010 x86_64 x86_64 x86_64 GNU/Linux Guest machine: Bridged network. CentOS 5.4 Linux 2.6.18-164.11.1.el5 #1 SMP Wed Jan 20 07:32:21 EST 2010 x86_64 x86_64 x86_64 GNU/Linux If Node1 is running the guest VM these are the results: Node1: [root@node01 ~]# scp guest:/root/VBoxTransfeRtest.iso . VBoxTransfeRtest.iso 100% 548MB 9.3MB/s 00:59 Node2: [root@node02 ~]# scp guest:/root/VBoxTransfeRtest.iso . VBoxTransfeRtest.iso 100% 548MB 15.2MB/s 00:36 Other machine on the net: [root@other ~]# scp guest:/root/VBoxTransfeRtest.iso . VBoxTransfeRtest.iso 100% 548MB 13.1MB/s 00:42 If I move the VM to node02 then that node is the slowest. Guest machine could also be W2003/W2008 Server, results are similar. The real problem comes doing a tape backup, then transfer slows down to 12-18 Kb/s when the backup software is running on the same node than the VM; otherwise gets up to 15 Mb/s." defect closed network/hostif VirtualBox 3.2.6 duplicate Linux Linux