[Veritas-bu] Help with Media Server Setup netbackup 5
dave.markham at fjserv.net
Wed Dec 8 11:17:41 CST 2004
Thanks for this.
I guess i should have added something else which now i am finding very
difficult but thought would be easy.
My environment is using shared storage. Ill try and explain.
The whole system had been set up last year by someone else and then
left. Hostnames have been changed and i found out from an Op that the
San switch was unplugged altogether for some time. After powering it
backup i could see things from the master server and so all was ok.
Master server connected to San Swtich in turn connected to Sun L700 with
5 tape drives.
This all seems fine and i can see WWN numbers of the robot and drives
etc and all is fine on command line sgscan and gui, after i ran the
sg.build and sg.install commands.
Now i am trying to install 2 media servers which use 3 of the drives as
Media Servers attached to San Switch in turn attached to Sun L700 tape
drives using Zoning.
I have not admined the San switch and nothing should need doing there as
it has not been touched since the system was first put in.
I uninstalled all old netbackup software and am installing v5 mp3.
I have rebooted my media server 'reboot -- -r; to re-read devices etc.
I was hoping to see the same WWN tape drives on the sgscan ( after
installing netbackup and saying which the master server was ) on the
media server, but i dont see any.
I do however see the /dev/rmt/*cbn files for each of the attached tape
drives which are shared, yet these device paths are different than the
master server. This is fine.
I have old outputs from tpconfig -d and bp.conf etc from the pre-me
1.Im not sure how to know if all these devices are on the media servers
2. Should i be seeing these wwn devices the same?
3. Should the device discovery be done from the master? I am happy with
using tpconfig but am frustrated because i can set it up how it used to
be but dont think that is quite right and theoretically i shouldnt have
any tpconfig output if i was installing new.
4. Do i share the drives from the master system gui first before
configuring media servers? Or do i share things after?
5. The topology view should only list the 5 drives right even if they
are shared and not list 3 of the shared drives for each host which is
connected to them. Im confused with them having different devices paths
etc see for /dev/rmt
Its all odd.
Sorry this is long now, and dont want to pester more. As this is a
remote site i have asked ops to check all connections are ok, but am
unsure how to check all this San zoning and fibre stuff.
To note i put a tape in a drive using robtest from the master and
running this :-
mt -f /dev/rm/3cb status on the media server would show it as having
a tape in.
The problem is what was referenced as Drive1 on the master ( and gui )
where i put tape in, had device /dev/rmt/2cbn where as probing from the
media server it showed up on 3cbn after trying the 1, and 2
This proves the media server can see something, but not via its wwn
I havent set up a master and separate media server before let alone
shared storage, but ive had plenty of experience with Netbackup on one
host backing up 30 odd clients.
I read through docs and docs but its all mad
>>Do i administrate all these media servers etc from the master server gui
>or commands. If so do i do the device config there or on each media
>server with tpconfig?
>Personally I like to create the initial configuration on a Windows Server or
>UNIX Server with the local tpconfig command. (Long time NetBackup User and
>UNIX CLI junky). The new device wizards in 5.0 for Windows and UNIX are
>excellent, I am just stubborn and set in my ways. Once I have an initial
>config I use the Master's GUI to administrate devices and make changes.
>>i need to add entries into
>bp.conf and vm.conf, so say REQUIRE_INTERFACE = <hostname>-mgmt
>The bp.conf REQUIRED_INTERFACE can be modified remotely with the JAVA GUI
>under Client Properties. BUT the vm.conf file must be manually edited
>>Now the extra line of DEVICE_HOST= worries me because i would have
>thought the device host is the master server.
>I really don't know what the DEVICE_HOST setting really does. I have not
>noticed any difference with or with out it. You do need the SERVER = or the
>MEDIA_SERVER = settings in your master's bp.conf. I have also noted that the
>"SERVER=" should be the same on all media servers to reflect each other.
>This is important if you ever plan to migrate media from one Media Server to
>another with the "bpmedia -move" command.
>>During install of media servers it asked which was the global device
>host or something similar to which i answered the master server, but i
>am not sure if this step completed or not. How can i check?
>I use the command "tpautoconf -get_gdbhost" and "tpautoconf -set_gdbhost".
>The master should be your GlobDB host unless you have a really really good
>I had a client once set up each Media server as the GlobDB host...
>HEHEHEHEHE - LOL!!! Can you say Media Database Corruption and FROZEN TAPES!
>Lucky for me he switched it back to the Master Server as the GlobDB host by
>the time I got onsite, but he forgot to mention this juicy tidbit of
>information while I was trouble shooting his problem!!!
>>I currently cannot seem to see the media servers listed as media servers
>in the gui.
>Ensure the Media Server has a valid TPCONFIG... Perform a "tpconfig -d" and
>verify at lease one drive is listed. Then recycle vmd and ltid on that Media
>Server. Perform a "vmps -a" and verify "ltid, vmd, avrd" daemons are
>running. Hopefully you will see "tcld or acsd" if you have a robot. Recycle
>the GUI on the master... Create a Storage Unit in the GUI for the New Media
>Server. Recycle the GUI on Master again. You should now see the Media Server
>in the "device and media" sections of the GUI and in the "Media Server"
>section in the GUI.
>This is why I like to use the tpconfig manually. Unless the GUI can identify
>the system as a valid media server you have a heck of a time administrating
>it remotely from the Master Servers GUI.
>I have seen media servers not appear in the Device Monitor window and yet
>they perform backups flawlessly. This is usually a symptom of a corrupted
>Use the command line! It won't lie to you!!!
>Just my 2 cents, ok maybe 3 or 4 cents...
>Veritas-bu maillist - Veritas-bu at mailman.eng.auburn.edu
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