03-06-2010 10:53 AM
From the FOS guide
To configure a port as a mirror port:
switch:admin> portcfg portmirror 2/1 --enable
Please confirm enable of Mirror Port: 17 (Y,y,N,n):
To add a port mirror connection between two local switch ports:
switch:admin> portmirror --add 2/1 0x011400 0x012400
The last time we planned to mirror a port was to diagnose the source of FC errors on the host. But portmirroring does not really give you a 100% correct analysis in such cases. You plug in the FC analyzer to the mirror port.
Its always good to take a downtime and plug the analyzer to source and dest directly.
I'm not sure, but this mechanism is used for mirroring writes to recovery devices like EMC RP. The device used a Brocade appliance blade, but from the scheme of things, looks like they configure a span port for it to work. Antonio might know about this??