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Poor backup performance on novell netware server – HP B6960-90078 User Manual

Page 615

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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