There is an alarm about N8300. “The DMP path of cluster NAS engine node accessing storage unit is faulty”
The DMP path of cluster NAS engine node accessing storage unit is faulty
Step1:login with "support" account (password:symantec) by console IP of N8300
Step2:Run command "vxdmpadm getsubpaths"
Check state list, if there is some list is disabled. That means the business link is down
One business link between N8300 engine and SAN(S5500T) is down.
Login ISM and find the link which is already down and link it up.