# please add next rows to # /etc/crontab
#for centos 5
 */30 * * * * root /usr/sbin/lvdisplay -c --ignorelockingfailure >/tmp/lvdisplay.output
 */30 * * * * root /usr/sbin/vgdisplay -c --ignorelockingfailure >/tmp/vgdisplay.output
#for centos6
*/30 * * * * root /sbin/lvdisplay -c --ignorelockingfailure >/tmp/lvdisplay.output
*/30 * * * * root /sbin/vgdisplay -c --ignorelockingfailure >/tmp/vgdisplay.output



Please change ip_of_hv in /etc/snmp/snmpd.conf to ip of mgmnt interface.
If needs to use snmp v2 - rename  snmpd.conf.v2 to snmpd.conf
Please change ip_of_cp in /etc/snmp/snmpd.conf to ip of CP.
place proper files according to your virtualisation system and Centos version. 
