The following is from packages/acs-tcl/tcl/10-database-procs.tcl,
but it is commented out along with the procs that used this. If you use an older version of ACS this will work, but you have to put one line for each pool, including main, subquery and log.
#
# This list is defined in the [ns/server/yourserver/acs/database] section using the key
# AvailablePool=foo (one line per pool).
#
