Example 3-65 shows that host rt12-8286-42A-2100E5W  in VM rt1004  was set as the host blacklist. 

# ksysmgr modify vm rt11004 blacklist_hosts=rt12-8286-42A-2100E5W WARNING: No backup host will be left for this VM rt11004. For VM rt11004 attribute(s) 'blacklist_hosts' was successfully modified. 

Note:  The warning appeared only because this test environment is composed only of two hosts on the host group. 

To list the blacklist host that is configured on VM rt11004, run the command ksysmgr query vm rt11004 , as shown in Example 3-66. 

# ksysmgr query vm rt11004 Name: rt11004 UUID: 4FCD724B-8407-4945-A973-C25C4CA69A94 State: INIT Host: rt11-8286-42A-0607585 Priority: Medium VM_failure_detection_speed: normal HA_monitor: enable Homehost: rt11-8286-42A-0607585 Blacklist_hosts: rt12-8286-42A-2100E5W VM_status: NO_OPERATION_IN_PROGRESS Version_conflict: No 

Example 3-67 shows how to delete the blacklist policy from VM rt11004. 

# ksysmgr modify vm rt11004 blacklist_hosts=rt12-8286-42A-2100E5W policy=delete For VM rt11004 attribute(s) 'blacklist_hosts', 'policy' was successfully modified. 

## Failover priority 

The failover priority  policy specifies the order of processing multiple VMs restart operations. For example, if a host fails and all the VMs must be relocated to other hosts on the host group, the priority of the VM determines which VM is processed first. The supported values for this attribute are High , Medium , or Low . You can set this attribute at the VM level only. You must specify the UUID of the VM if you have two or more VMs with the same name. By default, all VMs on the host group have a priority of Medium . 

To set the failover priority, run the following command: 

ksysmgr modify vm name1[,name2,...] | filepath=filepath priority=high|medium|low 

In Example 3-68, the VM rt11001 is set to High  priority. 

# ksysmgr modify vm rt11001 priority=High For VM rt11001 attribute(s) 'priority' was successfully modified. 

