Performing live migration of Oracle VM Server for SPARC systems in Flexible Storage Sharing (FSS) environments
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Performing live migration of Oracle VM Server for SPARC systems in Flexible Storage Sharing (FSS) environments

Perform the steps in the following procedure to perform live migration of Oracle VM Server for SPARC systems in FSS environments.

To perform live migration of Oracle VM Server for SPARC systems in FSS environments

  1. In the Oracle VM Server for SPARC cluster, verify that each FSS volume has a mirror across the cluster nodes of the target control domain.
    # vxprint
  2. Remove the DAS devices from the VxVM configuration. 
    # vxdmpadm exclude dmpnodename=vm_diskname
# vxdisk list

    After excluding the DAS devices from DMP, they will be visible as "remote disk" in the vxdisk list output.

  3. Verify that the applications and mount points in the migrating systems are running properly using remote plex.
    # cfsmntadm display
  4. Unexport the devices from the Oracle VM Server.
    # ldm remove-vdisk vdisk_name
						oracle_vm_name
  5. Migrate the Oracle VM Server systems.
    # ldm migrate oracle_vm_name
						controldomain_name
  6. Verify that the applications and mount points in the migrating systems are running properly using remote plex.
    # cfsmntadm display

If you plan to move the migrated systems back to the original control domain, ensure that you export the local DAS devices to the Oracle VM Server again after migrating it back, and add them to the VxVM configuration for local access.

# ldm add-vdisk vdisk_name vdsdev@vds oracle_vm_name
# vxdmpadm include dmpnodename=vm_diskname

After adding the local DAS devices to the VxVM configuration, the local plex resyncs automatically without any manual intervention.

You can verify the state of the local plex and local the DAS devices using the following commands: 

# vxprint 
# vxdisk list -o alldgs
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