Thanks to Motohiro Kanda !
zlinux:/ # mount -t mffs /dev/dasdad /mnt/tmp
zlinux:/ # cd /mnt/tmp
zlinux:/mnt/tmp # ls -la
total 648
drwxr-xr-x 4096 root root 4096 Sep 12 14:36 .
drwxr-xr-x 4 root root 144 Aug 8 12:45 ..
-rwxr-xr-x 1 root root 215040 Jul 22 02:00 SYS1.VTOCIX.OS079A
drwxr-xr-x 2 root root 443520 Sep 12 02:00 SYS2.PARMLIB
zlinux:/mnt/tmp # ls -la SYS2.PARMLIB
total 12128
-rwxr-xr-x 1 root root 443520 Sep 12 02:00 $$$COIBM
drwxr-xr-x 2 root root 443520 Sep 12 02:00 .
drwxr-xr-x 4096 root root 4096 Sep 12 14:36 ..
-rwxr-xr-x 1 root root 443520 Sep 12 02:00 APPCPM00
-rwxr-xr-x 1 root root 443520 Sep 12 02:00 ASCHPM00
-rwxr-xr-x 1 root root 443520 Sep 12 02:00 BLSCUSER
-rwxr-xr-x 1 root root 443520 Sep 12 02:00 BPXPRMDB
-rwxr-xr-x 1 root root 443520 Sep 12 02:00 CLOCK00
-rwxr-xr-x 1 root root 443520 Sep 12 02:00 COMMND00
......
WBR, Sergey