Just two commands are all you need to install DellOpenManage by yum.
wget -q -O - http://linux.dell.com/repo/hardware/OMSA_6.2/bootstrap.cgi | bash
yum install srvadmin-all
It's pretty handy.:)
Reference:
http://linux.dell.com/wiki/index.php/Repository/hardware
OpenManage Commands
omconfig
http://support.dell.com/support/edocs/software/svradmin/1.9/en/stormgmt/cli.html#1093328