Netbackup Error 41 and 51. Connection issue?

[ixat]

Hi guys, my backup jobs are failing after a cold boot of the servers and tape library due to UPS maintanence.

All jobs start up fine, status goes from "Mounting tape" to "Writing". Only 40960kb is written before the job exited on Error 51: Timed out waiting for database information ( seer.entsupport.symantec.com/docs/302068.htm )

Re-running the jobs later resulted in Error 41: network connection timed out ( seer.entsupport.symantec.com/docs/275105.htm )

- Servers configured with production and backup lan
- Servers able to ping their master/media servers on production and backup LAN IPs.
- Netbackup services all started correctly.
- Server space are sufficient

Setup:
Netbackup 4.5_FP6
L180 with 4 x LTO2
1 x Master Server
3 x Media Server

Kindly advise how to further troubleshoot this issue.

Thank you sirs!

[Stumpr2 · Accepted solution]

backup jobs are failing after a cold boot of the servers and tape library due to UPS maintanence.

You suffered a blow that hard to recover from and you need to start again at ground zero to first prove your environment health.
Shut everything down in a controlled sequence and bring them up in an organized manner.

Prove ALL phyisical connectivity outside of NetBackup. You will have to remove the Netbackup startup from the system boot scripts.
Do a library IPL and media inventory. Take a physical look for tapes stuck in the drives, cap/map, lost+found slot, etc....
Make sure the robot control host (usually master server) can see the library.
Make sure the media servers can see the tape drive
Check the mapping by doing OS backups to a test tape using tar/dd/cpio whatever OS command you are familiar with
Once you aare cconfident that everything is working at the OS level then start Netbackup on the master and/or library control host.
Bring on the media servers one at a time and do test backups and restores.
Go bck and re-enable NetBackup startup at boot time.

[ixat]

Hi Bob, with your advise in mind, we checked the switch connecting all the master/media servers and clients which was faulty on power resume and was replaced.

The reloaded configuration on the switch was updated and it was found that the duplex configurations was wrong. This caused severe connection packet errors and drops. Duplex settings on the switch was updated and Netbackup issue was resolved.

Thanks!