The GC (Global Catalog) server holds a read-only copy of an object's property set. Here are a few things to explain clearly:
First of all, this copy is read-only, not writable, just for quick query purposes.
Second, the GC-stored objects are all object in domain in forest
Again, every object has a lot of ATTRIBUTE,GC to save just a few of these object attributes
Since the GC is only partially attribute, which attribute is included?
(1) isMemberOfPartialAttributeSet attribute set to True is included.
(2) The set of all included attributes is called Pas,partial attribute set
(3) The default PAS includes those attributes that Microsoft considers most likely to be queried
(4) How do you add a property that is not in the default Pas? (for example, our company often query employee ID, want to add this attribute to PAS), you can through the ad Schema Snap-in
So change the PAS to change the schema (remember?) Change schema must have Enterprise Admin permission, or at least the group member of Schema Admins
Schema Snap-in does not check whether you have permission, if you do not have sufficient permissions, you can still open, but in the change of attributes, the report does not have sufficient permissions of the error.
"Methods for adding ad Schema snap-in under Windows 2008"
(1) The default is no schema snap-in, the first to register the DLL. Run cmd as an administrator and enter the following command
regsvr32 schmmgmt.dll
Then you run the MMC and you can choose to add Schema snap-in.
"How to change the attributes contained in a GC"