[dm-devel] understanding of multipathing and speed

[bart.coninckx at telenet.be]

On Tuesday 06 July 2010 09:21:51 Christophe Varoqui wrote: 

> (1494554000000000000000000010000000200000002000000) dm-1 

> 

> > IET,VIRTUAL-DISK [size=40G][features=1 queue_if_no_path][hwhandler=0] 

> > \_ round-robin 0 [prio=-2][active] 

> > \_ 1:0:0:2 sdf 8:80 [active][undef] 

> > \_ 2:0:0:2 sdg 8:96 [active][undef] 

> > 

> > I have two Gigabit NICs in this server each running over a separate 

> > switch to a separate gigabit NIC with a unique IP address on the 

> > storage IET iSCSI target. 

> 

> did you setup different ip networks for each independant lan ? You may want 

> to verify the ip routing is not sending every other packet through the 

> wrong interface ? 

> 

> Bye 

> 







Hi Christophe, 



yes I did, the two initiators and targets have there own IP network. IP 

routing points to the correct interface per network. Maybe my test (bonnie++) 

is not an appropriate one to show the difference in speed? 



thx, 



Bart 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/dm-devel/attachments/20100706/257f6cee/attachment.htm>