how to "lock" repository during backup

[Ben Chang]

I wrote a ksh script to back up (tar then gzip) the repository. Does
anybody know how I can safely "lock" the entire repository for the
duration of my backup? Most of the CVS users are on NT and are using
:pserver to connect to a Solaris CVS server box. Below is some info
about my setup.

OS: SunOS 5.7
CVS: 1.11.1p1 (client/server)

Thanks in advance,


Ben