Troubleshooting the sensor

This topic describes common problems that occur with the EMC Storage Scope sensor and presents solutions for those problems.

The sensor cannot connect to the EMC database

Problem: The sensor fails because it cannot connect to the EMC database.
Solution: Make sure that your credentials to the EMC database are correct, and that you copied all required JAR files. If you enable SSL, you must also add the cwallet.sso file to the access list.

Problem: The sensor does not discover the host computer systems.
Solution: The sensor can discover only the host systems that are managed by the EMC Control Center and that are synchronized with EMC Storage Scope database. The hosts must also have a relationship to FC Switch or Storage SubSystem.

Problem: The discovery takes too long to complete.
Solution: The Host storage sensor and the Fibre Channel switch sensor also discover hosts and switches. If both of them are enabled, the resources might be discovered twice. Check your discovery.

Problem: The discovery finishes with the CTJTD2312E error.
Solution: In the sensor log file, find the targetDb.HOSTNAME property and ensure that the host can be resolved from the Agile Service Manager server.

Problem

The database lock occurs when two sensors try to store similar data in the database at the same time.

Solution

By default, all Detail sensors store their data at the same time. You can change the following property to make them do it one by one:

com.collation.discover.observer.topopumpdeadlockstrategy=avoid

Restriction: The discovery time might increase if the sensors store their data in a sequence.