NEC Storage Manager User Manual page 247

failure(Vol capacity unmatch):
failure(Vol not exist):
failure(Vol not pair):
failure(Vol OS type unmatch):
failure(Vol to ATgroup over):
failure(nnh):
failure(several RDR pairs):
As a replication setting file, it is possible to use the file which is output by using the "Save the pair setup
information" function in "Replication Management".
Chapter 9 Configuration Setting (Common to All Units)
Failed, because the volume capacity does not match.
Failed, because the volume does not exist.
Failed, because the pair is already forcibly deleted.
Failed, because the volume format does not match.
Failed, because no more volumes can be registered with the ATgroup.
Other error (nnh: Internal error code)
Failed, because the volumes registered with the ATgroup cannot accept new
disk array pair setting, or because a volume having multiple RDR pairs cannot
be registered with the ATgroup.
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