26.2.3 Customizing device profiles
Through SNMP communication with devices, NNM directly collects several configuration information items. Additionally, some information is derived from the system object ID (sysObjectID) of devices.
Mapping of sysObjectID to NNMi attributes is done using a device profile. A device profile is used for grouping nodes to be monitored, filtering nodes to be displayed, and grouping nodes into categories for maintenance of discovery.
You cannot migrate the following configuration areas:
Customized symbols
Customized database fields and default values
- Note
NNMi provides many device profiles by default and they are available after installation. You can add any device profiles that are determined by using NNMi device discovery to be missing. Migration of device profiles is optional.
If you want to maximize matching of device profiles and NNM settings, use the procedure below to add device profiles to NNMi.
![[Figure]](GRAPHICS/F0000082.GIF)
Determine whether the OID file has been customized for the NNM version being used.
In NNM 07-10 or earlier, oid_to_sym, id_to_type, and HPoid2type are used to map the system's sysObjectID to a database attribute and the symbol to be displayed.
In NNM 08-00 or later, the oid_to_sym file is replaced with the oid_to_sym_registration directory structure.
![[Figure]](GRAPHICS/F0000044.GIF)
Because NNMi provides many pre-configured device profiles for known system object IDs, you can use the necessary device profiles right away. With the simplest method, you start a discovery process, check the results, and make only the necessary changes.
In the NNMi console, from the Configuration workspace, choose Device Profiles.
For each customized value, find an entry using sysObjectID.
If necessary, update the device profiles configuration.
For the entries provided by NNMi, verify that the values that have been set match the NNM attributes.
For the entries not provided by NNMi, create a new device profile for sysObjectID.
After the first discovery, sort the Device Profile column in the node inventory and find nodes with No Device Profile.
The profile type called No Device Profile indicates that sysObjectID has not yet been configured in NNMi. NNMi applies the default-monitoring configuration to nodes with No Device Profile. Note that it is difficult to filter these nodes.
You can build new device profiles so that device profiles are defined for all sysObjectIDs in the NNMi database.