Disable Chassis Intrusion detection
After deploying Dell OMCI to about 600 desktops and portables, an alert began displaying upon user logon:

Needless to say, users were somewhat confused by this.
To get rid of the message, we either had to:
- Run around to every Dell PC in the organization
- Uninstall Dell OMCI
- Remotely disable chassis intrusion detection and clear any current detections
Obviously we chose option three. With Dell’s OpenManage IT Assistant software, I was able to build a remote CIM command line to execute on a set of systems (in our case any system that was reporting a status of degraded). Here’s the command we ran:
system cim action=setcim ipaddress=$IP username=$USERNAME password=$PASSWORD authenticationlevel=packet classpropertyvalue=Dell_SMBIOSsettings::ChassisIntrusion:4
To execute the command, I setup a new command line task in ITA, targeted at a query of computers whose status was not “OK.” I set this to run once an hour, since clients were still being discovered and inventoried as this was happening. By setting the query to only hit degraded clents, we avoided running this needlessly on clients already configured properly.