262 Tivoli Business Systems Manager Version 2.1: End-to-End Business Impact Management
There are two ways to carry out a discovery:
? Bulk discovery
The wdmdiscovery command can be issued from the Tivoli desktop to carry
out a bulk discovery. The adapter sends details of all systems it has in its
cache to the IBM Tivoli Business Systems Manager Common Listener. The
bulk discovery process creates new instances of resources, deletes old ones,
and updates those that already exist. Bulk Discovery is an intensive process
and should be used judiciously to minimize performance degradation,
especially if you are dealing with many endpoints on a gateway.
? Delta discovery
The same wdmdiscovery command can be issued from the Tivoli desktop to
carry out a delta discovery. The adapter sends details of all changes since the
last discovery to the IBM Tivoli Business Systems Manager Common
Listener. The delta creates, deletes, and updates resources one at a time.
This is the primary method to discover new resources, as it has less impact
on performance. If a large number of resources is being created, updated, or
deleted, bulk discovery should be used instead of delta.
In our environment, the discovery is performed as shown in Example 8-4.
Example 8-4 The wdmdiscovery command
c:> wdmdiscovery -m all -b
Processing ManagedNode ibmtiv9...
If you have a problem issuing the discovery, it usually will be a time-out problem
caused by incorrect port settings or a network problem. (By default the adapter
will allow 300 seconds for the Common Listener to respond.) We can enable a
trace and look at the IBM Tivoli Business Systems Manager log files to diagnose
the problem. More on this later in 8.4, “Tracing an event to the Common Listener”
on page 268.
After successfully running the wdmdiscovery command, we can run the
wdmmngcache command, as shown in Example 8-5, to check whether the
registration completed sucessfully.
Example 8-5 The wdmmngcache command
C:>wdmmngcache -m all -l -v
Processing ManagedNode ibmtiv9...
Endpoint | HB status | TBSM status
ibmtiv8 HBOff Discovered
ibmtiv9 HBOff Discovered