Live Migration of BS000 systems
Live Migration (abbrev. LM) of BS2000 systems is the central function of an SU Cluster.
LM is not only understood as relocating a BS2000 system in a state RUNNING, but also in the states DOWN and INIT_ONLY in which resources are also allocated.
Migrating of (deactivated) VM definitions
Deactivated VM definitions (VMs in the state DEFINED_ONLY) can be relocated in the same way as in case of LM of an SU.
As the resources are not allocated, certain constraints are omitted.
However, as the process is essentially analogous to LM, both this document and SE Manager also use the term LM in this case. If it’s necessary the (small) differences are indicated.
Restoring (recovering) (deactivated) VM definitions after an outage
Restoring (recovering) (deactivated) VM definitions makes a simple transfer of BS2000 systems from an SU to a different SU in an SU Cluster after an outage (or power down) of the SU or of the whole SE Server possible. The command /RECOVER-VM-DEFINITION can be used for this in every SU cluster (SU /390 and SU x68).
The LM is described in detail in chapter -> Live Migration (LM) for BS2000 systems (Cluster V6.4A, #27).
Restoring deactivated VM definitions after an outage is described in detail in the following chapter -> Restoring VM definitions.
Role Concept
- The SU Cluster main windows are visible for all users except add-on administrators.
- Activating/deactivating of SU Clusters is reserved for administrators.
- LM is not only allowed for administrators but also for BS2000 administrators and operators (if their individual rights are correct).
Hint regarding operators
Attention should be paid that an operator receives access to BS2000 system not only on the source SU but also on the target SU.