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[dm-devel] Re: Can SCSI commands trigger the reinit of a disabled path?



> I went through the multipath code and found there was hardware handler
> for specified hardware, such as emc.  When init path, it will use the
> trespass command given by the handler. Does this mean it only support
> the A/PF mode of array? When SCSI commands,  such as SCSI PR, are sent
> to a disabled path, will trespass be triggered? 

In A/PF mode, with failovermode set to 1 (as it should be for dm-mpio) 
the Clariion array will only trespass LUNs on receipt of an explicit 
trespass command, not on other I/O. 

Jerry Levy, EMC


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