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Re: [dm-devel] understanding of multipathing and speed



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


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