Merging is based on resource key names and values. Typical causes of merging are:
Step 1: Identify common resource keyname and keyvalue values on Unix, Linux and Mac managed computers:
Run the following command on two or more computers and compare the name/value pairs. If any name/value pair matches on two or more computers, the computer resources will merge on the NS server.
Sample output:
# aex-helper info resource
Resource GUID: {ECBCB670-E433-4870-8B53-DF6E8266092B}
Resource Type: Computer ({493435F7-3B17-4C4C-B07F-C23E7AB7781F})
Resource keys:
name.domain=mycomputer
name.domain=mycomputer.mydomain
fqdn=mycomputer.mydomain.com
name.domain=mycomputer.mydomain.net
uniqueid=AbxYcJiaO14XeVHrECC+bw==
uniqueid=cDmt/m/pGkOZTo3rg04tQQ==
uniqueid=Ef1aNYVyyvwH1rng9djIOA==
uniqueid=Ghw3+t2d5w8idNkA/haXgQ==
Step 2: Prevent the creation or use of specific resource keys or values:
http://www.symantec.com/docs/HOWTO21641 - How to exclude or ignore certain "mac address" values as resource keys on the NS
Step 3: Cleanup currently merged resources:
http://www.symantec.com/docs/HOWTO84072 - How to Unmerge and Assign a New Resource Guid to a Unix, Linux or Mac Client Computer