To test your site-to-site ISLs in a Brocade fibre channel switch fabric, run the command:
spinfab -ports 0/40 - 0/41
On the switch aboove, ports 0/40 and 0/41 are the ISLs.
Note 1: Remember to clear the switch port stats first with:
portstatsclear -i 40-41
Note 2: The spinfab test will take around 45 minutes and you should not interrupt it.
Note 3: [IMPORTANT] All other ports in the fabric should be disabled whilst you are running this test (i.e. if you are running the test for one fabric of a NetApp Metrocluster, disable all the other ports in that fabric, because you don't want the storage systems to be sending/receiving data at the same time this test is running!)
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