Ulrich Windl wrote:
> Hi,
> is it correct that a No-Op is handled entirely withing the iSCSI layer (i.e. 
> no 
> command is sent to the actual device), while a TUR (multipathd) is answered 
> by the 
> device?

That is correct. You could set up your target with any luns and we will 
still send nops and the target will reply.

> I saw that the Microsoft Initiator is using No-Ops. Using TUR with Linux, I 
> had 
> some cases where the reply timed out. So that could be a network problem or a 

Were you using TURs for multipathd then did you turn off nops in the 
iscsi layer (we use them by default).

> device problem. If the No-Op is handled without the device, I could change 
> the 
> test to find out what part is causing the delays.
> Regards,
> Ulrich
> > 

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