Attempt a recover procedure only after a complete and thorough
investigation of the cause of the system failure. Attempt to resolve
those issues by using other service procedures.
Attention: If you experience
failures at any time while running the recover system procedure, call
the Lenovo Support Center. Do not attempt to do further recovery actions, because
these actions might prevent support from restoring the system to an
operational status.
Certain conditions must be met before
you run the recovery procedure. Use the following items to help you
determine when to run the recovery procedure:
Note: It is important to know the number of control enclosures in the system.
When the instructions indicate that every node is checked, you must
check the status of both nodes in every control enclosure. For some
system problems or Fibre Channel network problems, you must run the
service assistant directly on the node to get its status.
- Check that no node in the system
is active and that the management IP is not accessible. If any node
has active status, it is not necessary to recover the system.
- Resolve all hardware errors in nodes so that only
node errors 578 or 550 are present. If this
is not the case, go to Fix hardware errors.
- Ensure all backend storage that is administered by
the system is present before you run the recover system procedure.
- If any nodes have been replaced, ensure that the
WWNN of the replacement node matches that of the replaced node, and
that no prior system data remains on this node. (See Procedure: Removing system data from a node canister.)