Mounting "/opt" on VxVM/VxFS, Ramifications of

All,
Can someone please explain the ramifications of placing "/opt" on VxFS??  
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root@con:~ df
Filesystem             size   used  avail capacity  Mounted on
/dev/md/dsk/d10        9.9G   6.9G   2.8G    72%    /
/proc                    0K     0K     0K     0%    /proc
mnttab                   0K     0K     0K     0%    /etc/mnttab
fd                       0K     0K     0K     0%    /dev/fd
/dev/md/dsk/d30         12G   4.4G   7.3G    38%    /var
swap                    51G    40K    51G     1%    /var/run
dmpfs                   51G     0K    51G     0%    /dev/vx/dmp
dmpfs                   51G     0K    51G     0%    /dev/vx/rdmp
swap                   8.0G    10M   8.0G     1%    /tmp
/dev/md/dsk/d45         86G   106M    85G     1%    /BAS
/dev/vx/dsk/rootdg/optvol
                        18G   4.2G    13G    25%    /opt

VFSTAB:

#device         device          mount           FS      fsck    mount   mount