custom quiescing scripts in debian guest VM

hi experts,

i need to backup running sql before trying to take VM snapshot.

i followed steps mentioned in http://www.hiperlogic.com/blog/?p=803

and created files under /usr/sbin/pre-freeze-script

-rwxr-xr-x 1 root root     34 Jan XX 17:17 pre-freeze-script

when i take quieced snapshot this isn't running.

am i missing something here?

1. does custom quiescing work with vmware tools version --> VMware Tools 9.0.0 build-782409

2. should we keep these scripts under /etc/vmware-tools/scripts/vmware folder? or /usr/sbin folder?

please help