IBM TOTAL STORAGE DS8000 - Manual (Page 146)

CMUS00029E No source LSS is available in the selected storage
image.
Explanation
No source logical subsystem is available in the selected storage image. A path
cannot be created without a source LSS.
Action
Select a storage image that has an available source logical subsystem, and then
resubmit the task.
CMUS00030W The selected storage unit or image is not a master
(primary) for Global Mirror sessions.
Explanation
You have selected a storage unit or storage image that is a subordinate (not a
master) for Global Mirror sessions. This is only a warning. You can make this
storage unit or storage image a master.
Action
You can continue, but you must make the storage unit or storage image a master.
CMUS00031E Invalid logical subsystem: No paths to the subordinates
exist.
Explanation
A path must exist between the master and subordinate logical subsystems. No path
exists.
Action
Select a logical subsystem with paths to the subordinates or create paths, and then
resubmit the task.
CMUS00032E No target LSS is available for the selected source LSS.
Explanation
No target logical subsystem is available for the selected source logical subsystem.
A path cannot be created without a target LSS. To create a target LSS, a port must
be cabled, and the port topology must be configured using the DS command-line
interface.
Action
Select a different source logical subsystem, or contact IBM technical support for
assistance.
126 IBM TotalStorage DS8000: Messages Reference