Require steps to extend samfs cluster file system

Require help to extend filesystems  in clustered environment.details shown below.

 

Details :-

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df -h
Filesystem size   used  avail capacity  Mounted on
/dev/md/dsk/d100 25G    15G   9.1G 63%    /
/devices 0K     0K 0K     0%    /devices
ctfs 0K     0K 0K     0%    /system/contract
proc 0K     0K 0K     0%    /proc
mnttab 0K     0K 0K     0%    /etc/mnttab
swap 95G   2.2M    95G 1%    /etc/svc/volatile
objfs 0K     0K 0K     0%    /system/object
sharefs 0K     0K 0K     0%    /etc/dfs/sharetab
fd 0K     0K 0K     0%    /dev/fd
swap 96G   308M    95G 1%    /tmp
swap 95G   112K    95G 1%    /var/run
/dev/md/dsk/d310 39G    24G    15G 63%    /oradpw
/dev/md/dsk/d300 30G    11G    18G 39%    /u01