[root@server9 postfix]# rpm -ql heartbeat | grep standby
/usr/lib/heartbeat/hb_standby
/usr/sbin/crm_standby
/usr/share/heartbeat/hb_standby
/usr/share/man/man1/hb_standby.1.gz

[root@server9 postfix]# ls /usr/lib/heartbeat/
api_test          crmd                 haresources2cib.pyo  pengine
apphbd            crm_primitive.py     heartbeat            pingd
apphbtest         crm_primitive.pyc    ipctest              plugins
atest             crm_primitive.pyo    ipctransientclient   quorumd
attrd             crm_utils.py         ipctransientserver   quorumdtest
base64_md5_test   crm_utils.pyc        ipfail               recoverymgrd
ccm               crm_utils.pyo        logtest              send_arp
ccm_testclient    dopd                 lrmadmin             stonithd
cib               drbd-peer-outdater   lrmd                 stonithdtest
cibmon            findif               mgmtd                tengine
clmtest           ha_logd              mgmtdtest            transient-test.sh
crm_commands.py   ha_logger            mlock                ttest
crm_commands.pyc  haresources2cib.py   ocf-returncodes      utillib.sh
crm_commands.pyo  haresources2cib.pyc  ocf-shellfuncs