Step 1:
Place database driver in glassfish lib dir. (e.g. lib/mysql-jdbc-5.1.11.jar) and restart server.
Step 2:
Login to Admin Console: http:\\localhost:4848\
Goto Resource > JDBC > Connection Pool
Provide Name, Select Database vendor and Select Resource Type
Step 3:
Enter DataSource class name (Database driver)
Change other settings as you want
Save and Ping
:) "Ping Succeed"
Connection Pool is ready
