Veritas-bu

[Veritas-bu] Netbackup Device Configuration problems :-(

2006-06-06 07:13:07
Subject: [Veritas-bu] Netbackup Device Configuration problems :-(
From: Philip.Weber at egg.com (Weber, Philip)
Date: Tue, 6 Jun 2006 12:13:07 +0100
I've occasionally found it necessary to delete everything NetBackup
knows about the attached robots and drives, and re-scan from scratch,
using the steps below.  Seems a bit drastic, but it does the job and the
configuration ends up clean.

Re-map Drives and Robots into NetBackup

For example, after moving drives or PCI cards around in media servers
you will need to go through this process to ensure all the paths match,
between the OS, robotic tools and Net Backup : 

1.      Do the necessary to get the OS up to date, i.e. remove /dev/rmt
entries and reconfigure reboot. 
2.      Check how many drives can be seen using sgscan tape. Depending,
it may not be necessary to reinstall the sg driver. 
3.      Re-install the (Veritas) sg driver. 

1.      rem_drv sg 
2.      rm /kernel/drv/sg.conf 
3.      /usr/openv/volmgr/bin/driver/sg.install 
4.      Check all drives can now be seen using sgscan tape. 

4.      On each media server, delete all drive definitions from the
Media Manager. 

1.      List Net Backup drive numbers using tpconfig -d 
2.      Delete each using tpconfig -delete -drive {n} e.g. tpconfig
-delete -drive 0. 

5.      ON each media server, delete all robot definitions from the
Media Manager. 

1.      List Net Backup robot numbers using tpconfig -d 
2.      Delete each using tpconfig -delete -robot {n} e.g. tpconfig
-delete -robot 0. 0 for gorilla, baboon, 1 for lemur, gibbon, grivet. 

6.      At this point vmglob -listall -java on any media server should
return nothing, indicating that the Global Device Database has been
synchronised after everything has been deleted. If not, try to delete
remaining entries manually using vmglob -delete -drive -name
<DriveName>, etc. - from the master server. 
7.      Get Net Backup to scan for all attached devices using tpautoconf
-a. Or use the GUI "Configure Storage Devices" wizard. 
8.      At this point tpconfig -d will show all devices with default
names e.g. DLT70001. 
10.     stopltid 
11.     ltid -v 
12.     Use the tpreq command to test mount as many tapes as possible,
then tpunmount to unmount them. 

regards, Phil

Phil Weber
Egg plc, Senior UNIX Technologist


-----Original Message-----
From: veritas-bu-bounces at mailman.eng.auburn.edu
[mailto:veritas-bu-bounces at mailman.eng.auburn.edu] On Behalf Of WEAVER,
Simon
Sent: 06 June 2006 06:18
To: 'veritas-bu at mailman.eng.auburn.edu'
Subject: [Veritas-bu] Netbackup Device Configuration problems :-(


Guys
After now removing all storage units for my old media servers that were
totally destroyed, I have installed NBU on the newly named media servers
and attempted to run the device configuration utility from my Master.

I have attempted to scan both new hosts but each one comes up with the
following message....

The error message reported is "Could not get device configuration.
Cannot discover devices. see the troubleshooting guide for details
(44)." I received an OK box.

When clicking this, the Device Configuration Wizard asks "Device
discovery failed on host Server001 do you wish to proceed - I say NO.
Saying YES brings up the 1st message and the device configuration fails
to continue as it cannot see the robot.

This occurs whether I scan a single host, multiple hosts or ALL 3 hosts
(Master as well).

Under Media & Device Management, Devices, Robots and hosts I can see
entries for SERVER001 and 002 - I wonder if someone has tried to
configure the devices, and its failed somewhere along the lines and now
NetBackup cannot understand what is happening?

Currently doing a backup of my SAN devices over LAN for now.....

Regards
Simon Weaver
3rd Line Technical Support
Windows Domain Administrator 
EADS Astrium Limited, B32AA IM (DCS)
Anchorage Road, Portsmouth, PO3 5PU
Email: Simon.Weaver at Astrium-eads.net

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