Operations failure on HPE 3PAR volumes

Symptom

Operations failure, such as live migration of VM when it is attached to the HPE 3PAR volume. This issue is noticed only during the reinstallation.

Cause

If computes with same name is already available in the HPE 3PAR storage configuration, operations such as live migration of VM when it is already attached to the HPE 3PAR volume is attempted.

Action

Run the following commands:

[root@computeovsdpdksriov-0 heat-admin]# cat /etc/iscsi/initiatorname.iscsi
InitiatorName=iqn.1994-05.com.redhat:b0e0ad34d99c
[root@computeovsdpdksriov-0 heat-admin]#
[root@computeovsdpdksriov-0 heat-admin]# exit
exit
[heat-admin@computeovsdpdksriov-0 ~]$ exit
logout
Connection to 10.20.1.20 closed.
(overcloud) [stack@undercloud ~]$ ssh heat-admin@10.20.1.16
Last login: Fri May 10 13:40:14 2019 from 10.20.1.3
[heat-admin@computeovsdpdksriov-1 ~]$ sudo su
[root@computeovsdpdksriov-1 heat-admin]# cat /etc/iscsi/initiatorname.iscsi
InitiatorName=iqn.1994-05.com.redhat:6a26221530d5

NFVSYS-3PAR cli% showhost
Id Name                       Persona      ----------WWN/iSCSI_Name----------- Port
16 computeovsdpdksriov-0      Generic-ALUA iqn.1994-05.com.redhat:b04d89253d5d ---
22 computeovsdpdksriov-1      Generic-ALUA iqn.1994-05.com.redhat:6a26221530d5 0:2:2
8 computeovsdpdksriov-3       Generic-ALUA iqn.1994-05.com.redhat:a470a6f955e  ---
21 controller-1               Generic-ALUA iqn.1994-05.com.redhat:36b93b8196da ---
17 overcloud-computesriov4p-0 Generic-ALUA
------------------------------------------------------------------------------------
5 total