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Can’t remove a host from a host group.

Publication Date:  2015-07-31 Views:  395 Downloads:  0
Issue Description

Product: S5500T version V1R5. FC link, HBA type - FC - two switches betwen host and storage.

The customer tried to remove a host from  host group from ISM  but he was not able to do that. he received the below message:

The custoemer tried to remove the initiators that  belong to the involved  host  [ISM / HOSTS tab, right click on the host, chose Initiators and remove it/them]  but also he received an similar message from ISM  like above picture and  he was not able to  delete/detach  the  initiator from  the host.

So, the problem  was when he trid  to remove the initiator from the host.


A solution for this kind of issue is to stop the I/O flow from the involved host to the storage ( to stop the application from the host if it's possible)  and after that we have to try again to remove the FC_initiators ( in my case were FC-initiators and not an iscsi-initiator)  . If the storage  detect an I/O request will refuse to remove the initiators. 

In my case the customer stoped  the port from his  switch and after that he was able to remove the initiators also the host from the host group.