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Troubleshooting
Troubleshooting Backup and Restore Sessions
Chapter 12 585
Data Protector Backup sessions are not started at all
(UNIX-specific)
Action Run the crontab -l command to check whether the omnitrig program
is included in the crontab file. If the following line does not appear, the
omnitrig entry was automatically added by Data Protector:
0,15,30,45 * * * * /opt/omni/sbin/omnitrig
Stop and start the Data Protector daemons by running the omnisv
-stop and the omnisv -start commands in the /opt/omni/sbin
directory.
Data Protector Fails to Start an Interactive Session
Every time a backup is started, permission to start a backup session is
required and checked for the user who is currently running Data
Protector. If the user does not have sufficient permission, the session
cannot be started.
Action Check and change the user rights for the particular user. Refer to
Chapter 3, “Configuring Users and User Groups,” on page 81.
Poor Backup Performance on Novell NetWare Server
Backup performance on a Novell NetWare Server may be poor. Backup
does not run continuously, but intermittently. This is a well-known
problem caused by the system TCPIP.NLM.
Action Set the following parameters:
• NW5.1/NW6.0: SET TCP DELAYED ACKNOWLEDGEMENT = OFF
• NW5.0: SET TCP DELAYED ACK = OFF
This increases backup performance without any secondary effects.
Data Protector Fails to Start Parallel Restore Media
Agent on Novell NetWare Clients
Data Protector UNIX session manager sometimes fails to start restore
media agents in parallel on Novell NetWare clients with an error
message like, for example, Could not connect to inet or Connection