sometime you add new disk. will notice vxdisk list show path state=disabled.

vxdisk list c2t0d63s2

Multipathing information:

numpaths: 2

c2t0d63s2 state=disabled

c3t0d63s2 state=disabled

vxdmpadm enable path=c2t0d63s2

vxdmpadm enable path=c3t0d63s2

then it goes to

numpaths: 2

c2t0d63s2 state=enabled

c3t0d63s2 state=enabled