IBM TOTAL STORAGE DS8000 - Manual (Page 276)

Action
Specify a valid volume size and then resubmit the task.
CMUN02389E SOURCE Unable to create volume. Not enough extents are
available.
Explanation
The volume cannot be created because not enough extents are available in the
extent pool. More extents must be added to the extent pool.
Action
Add more extents to the extent pool, and then resubmit the task.
CMUN02390E SOURCE Unable to create volume. Not enough extents are
available at this time.
Explanation
The volume cannot be created because not enough extents are available. However,
freed extents in the extent pool are being reformatted. Enough extents will be
available when the reformatting process completes. One terabyte of disk space can
be reformatted in approximately four hours.
Action
Wait until reformatting completes, and then resubmit the task.
CMUN02391E SOURCE Unable to delete CKD base volume. Unable to
delete or reassign aliases.
Explanation
The storage management console server reports a storage unit microcode-level
error. The CKD base volume cannot be deleted because its alias volumes cannot
be deleted or reassigned.
Action
Delete or reassign the alias volumes first, and then resubmit the task.
CMUN02392E SOURCE Invalid alias volume group
Explanation
The specified alias volume group does not exist or is not a FICON/ESCON - MASK
type volume group. Volume group 10 is the default valid volume group of this type.
Action
Specify a valid volume group, and then resubmit the task.
256 IBM TotalStorage DS8000: Messages Reference