查看服务器wwn是否在交换机侧

判断port_state是否为Online状态，是的话，读取出port_name，即为wwn。

 #!/usr/bin/env python3

 # -*- coding: UTF-8 -*-

 import glob
 import operator
 import os

 if __name__ == "__main__":
     work_dir='/sys/class/fc_host/host*/port_state'

     for item in glob.glob(work_dir):
         f = open(item)
         for line in f:
             if line == 'Online\n':
                 wwn_item = item.replace("state", "name")
                 fn = open(wwn_item)
                 for wwn in fn:
                     print wwn,
                 fn.close()
         f.close()

用集合来存放从交换机上获取的wwn信息，把从服务器上获取的wwn逐行读取，进行比对，看是否在集合内。

为True的话，说明可以从交换机上看到此台服务器。

 #!/usr/bin/env python3

 # -*- coding: UTF-8 -*-

 if __name__ == "__main__":
     f = open("112wwn")
     wwn_set=set()
     for line in f:
         wwn_set.add(line)
     f.close()
     print(wwn_set.__len__())

     f_host = open("172wwn")
     for wwn in f_host:
         if wwn in wwn_set:
             print('True')
         else:
             print('False')
     f_host.close()