  The $J^P=0^-$ radial excitation $D_s(2^1S_0)$ is anticipated to have mass
$2650$ MeV (denoted with $D_s(2650)$) though it has not been observed.
$D_s(2650)$ is anticipated to be observed in inclusive $e^+e^-$ and $pp$
collisions in $D^*K$ channel. $D_s(2650)$ can be produced from hadronic decays
of higher excited resonances. In a $^3P_0$ model, hadronic production of
$D_s(2650)$ has been studied, relevant decay widths have been estimated. The
hadronic decays of $D_s(3P)$ have been explored in detail, and the dominant
decay channels have been pointed out. Two hadronic decay channels of
$D^+_{sJ}(2632)$ were observed by SELEX, but have not been observed by any
other experiment. Hadronic decays of $D^+_{sJ}(2632)$ in different assignments
have been explored in the $^3P_0$ model. In view of the hadronic decay manner
of $D^+_{sJ}(2632)$ , we conclude that $D^+_{sJ}(2632)$ cannot be a
conventional charmed strange $c\bar s$ meson.
