Determining whether the storage agent moves data

To ensure data transfer from the storage agent to the z/OS media server, you must verify the network connectivity and the Tivoli Storage Manager software components.

About this task

Messages and backup reports can indicate whether the storage agent is moving data to the z/OS media server successfully. You can also use the QUERY SESSION and QUERY ACTLOG commands to verify data movement.

Procedure

To determine whether the storage agent moves the data, use one or both of the following methods:

Monitor the QUERY SESSION output against the node that is running the backup from the storage agent to the z/OS media server. Verify that the proper sessions are established:
1. Log in to the IBM Storage Protect server and storage agent by using a IBM Storage Protect administrative command-line client.
2. Verify that the storage agent is moving the backup data to the z/OS media server and the proper sessions are established, issue the QUERY SESSION command. In the command output, look for information about bytes sent and bytes received. If data movement is occurring, complete the following steps:
  - Query a session on the storage agent to show the bytes received for the node that increases to the total amount of data that is backed up.
  
  - Query a session on the IBM Storage Protect server to show a small number of bytes (metadata) received for the same node.
If the node session shows these characteristics, the storage agent is moving data to the z/OS media server.
Tip: During a failover where the storage agent is sending data directly to the server by proxy because it cannot store the data directly, the QUERY SESSION statistics on the server show a much higher byte count.
Issue either of the following QUERY ACTLOG commands on the server to which the client is connected:
```
query actlog search=storage_agent_name
```
If the query locates entries in the activity log that relate to the storage agent, the client is transferring data to the z/OS media server.