Tuning NetBackup – Part 2: Solaris 10
Disable TCP Fusion
Getting NetBackup status code 23’s? How about status code’s 24, 25, or 53? Maybe you just have the occasional status code 50’s? Chances are you have TCP Fusion enabled.
TCP Fusion has caused many issues with NetBackup as it performs flow control while utilizing blocking I/O sockets. With that said, I recommend everyone disable TCP Fusion if they are using NetBackup.
In order to disable TCP Fusion you can utilize one of two ways to do so.
OPTION 1: NON- PERSISTENT
- Make sure there are no backups or restores running
- Run echo 'do_tcp_fusion/W 0' | mdb –kw
- Run /usr/openv/netbackup/bin/goodies/netbackup stop
- Run /usr/openv/netbackup/bin/goodies/netbackup start
- VI (edit) your /etc/system file.
- Add this line set ip:do_tcp_fusion = 0 and save.
- Reboot your Solaris 10 system
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