This doesnt give you the actual volumes.

adsm> q occ aixs70a dev=3590class       type=archive

Node Name         Type  Filespace   Storage     Number of   Physical    Logical
                        Name        Pool Name       Files      Space      Space
                                                            Occupied   Occupied
                                                                (MB)       (MB)
----------------  ----  ----------  ----------  ---------  ---------  ---------
AIXS70A           Arch  /disk01a    ARCHIVETA-        103  11,368.65  11,368.65
AIXS70A           Arch  /disk01a    ARCHIVETA-        103  11,368.65  11,368.65
                                     PEPOOL
AIXS70A           Arch  /disk01a    OFFSITECO-         82   9,252.88   9,252.88
                                     PYPOOL
AIXS70A           Arch  /oracle     ARCHIVETA-         14       0.03       0.03
                                     PEPOOL
AIXS70A           Arch  /oracle     OFFSITECO-         11       0.02       0.02
                                     PYPOOL
AIXS70A           Arch  /disk01b    ARCHIVETA-        336  33,250.13  33,250.13
                                     PEPOOL
AIXS70A           Arch  /disk01b    OFFSITECO-        250  22,141.92  22,141.92
                                     PYPOOL