IBM TOTAL STORAGE DS8000 - Manual (Page 90)

Action
Select OK to use the prefix and number combination to create volume nicknames
with sequentially increasing numbers. Select Cancel to enter names manually.
CMUG00020E Too few volume addresses are available to create the
volumes specified. Select additional logical subsystems.
Explanation
You have checked the select LSS check box in the wizard, but either no logical
subsystems are selected, or not enough logical subsystems are selected to provide
valid addresses for the volumes that are being created.
Action
Select one or more logical subsystems from the list.
CMUG00021E Multiple volume creation is not permitted with
automatic nickname sequence generation disabled.
Explanation
You have disabled automatic nickname sequence generation by unchecking the
check box, but are creating more than one volume. This is not permitted.
Action
Create only one volume, or enable automatic nickname sequence generation by
checking the check box.
CMUG00022E Select a volume group.
Explanation
You are defining volume characteristics in the wizard. The select volume groups
check box has been checked, but no volume groups are selected.
Action
Select a volume group or uncheck the check box.
CMUG00023E You must select one volume to complete the operation.
Explanation
Selecting a single volume is required for this operation. A volume is not selected, or
multiple volumes are selected.
Action
Select a single volume.
70 IBM TotalStorage DS8000: Messages Reference