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