How to increase /var under SVM - Mirror in Live server

Hi All,
I have a new task to increase the /var filesystem for installing new cluster patch.
Currently the /var filesystem have (/dev/md/dsk/d510        14G   5.7G   8.6G    40%    /var)
This to be increase for additional 5GB.
Is it possible to increase this without downtime.

It is cluster node.

DF -h output
--------------

/dev/md/dsk/d500        24G   9.9G    14G    42%    /
/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                         68G   2.1M    68G     1%    /etc/svc/volatile
objfs                         0K     0K     0K     0%    /system/object
sharefs                    0K     0K     0K     0%    /etc/dfs/sharetab