This is not really a howto but more of a quick lookup on what commands to use to debug/troubleshoot. 
So this is not lay out in any order what so ever. Just a bunch of random notes.... I hope this helps you the way it has helped me..... :)

1. There are 2 directories where logs exist! 1st dir is /usr/openv/logs (Low level logs) and
2nd dir is /usr/openv/netbackup/logs (Here you will have to create the subdirectories in order
for logs to be created here) BEWARE these logs tend to get huge!

1. Also if the /usr dir becomes a 100% full Netbackup will basically stop functioning!! Always check the logs dir!

2. If DNS goes bad Netbackup will also stop functioning and will need a restart of Netbackup!

3. Commands you should use for everyday trouble shooting.

   1. /usr/openv/netbackup/bin/bpclntcmd -hn client
      (This command is extremely helpful, it tells you if Netbackup can do a successful lookup of the dns name)

   2. bpclntcmd -ip ip_address
      (This command is also very helpfuls, it tells you if Netbackup can do a reverse dns lookup)

   3. /usr/openv/netbackup/bin/bpexpdate -m 03000I -d 0
      (This command allows you to expire media when needed instead of waiting for it to expire)

   4. bpstulist
      (This command will tell you all drives and there hosts connected to the master server)

   5. /usr/openv/volmgr/bin/tpautoconf -a
      (This cmd will scan all local device on the media manager)

   6. /usr/openv/volmgr/bin/vmoprcmd
      (excellent cmd for verifying that all media managers have their drives)

   7. /usr/openv/netbackup/bin/admincmd/bpmedialist -rl 1
      (This cmd is retrieving all info about media that is available/full/expired/other) NOTE: available_media uses this cmd to get some of its info

   8. /usr/openv/netbackup/bin/admincmd/bpmedia -unfreeze -m 03001
      (This cmd unfreezes the media)

   9. /usr/openv/netbackup/bin/bpadm
      (is a script that runs cmds for you in a easier format and also does about 90% of what the gui does)

      • example how to change a volume pool for a media;

      • run bpadm

      • choose option (e) media management

      • choose option (s) special actions

      • choose option (p) Change volume pool for volume pools

      • choose a volume pool from where you are want to move media to, and you are done!

   10. Troubleshooting SYBASE GOING FUBAR! These are the steps to take to get a clean EMM database up and running with .

       • Stop Netbackup services.

       • Move the contents our of the /usr/openv/db/data/ directory.

       • Start the database server up with the command "nbdbms_start_server" from the /usr/openv/db/bin directory

       • Run a "nbdbms_start_server -stat" to make sure the database server was up

       • Run "create_nbdb" to created in default locations to database files.

       • Start Netbackup services.

       • Run "tpext" from the /volmgr/bin directory

       • Then restart Netbackup on all servers!

       • Now scan for all devices on <hostname>.

   11. Check a jukebox at the command line:

       • /usr/openv/volmgr/bin/vmcheckxxx -rt tld -rn 1 -list

   12. Inventory Jukebox from the command line:

       • /usr/openv/volmgr/bin/vmupdate -rt tld -rn 1 -full [-interactive] -use_barcode_rules

   13. Check to see which disk are expired, full, available

       • /usr/openv/netbackup/bin bpmedialist -rl 1
         (-rl means retention level, the 1 means 2 week retention which is what we are using)

   14. If you notice that you are running out of tapes and you know tapes shouldve expired,
       run the previous command and get all of the expire tapes and run this command.

       • /usr/openv/netbackup/bin/bpexpdate -m [mediaid] -d 0 (-d means days so 0 means now)

       1. The /usr/openv/netbackup/bin/admincmd/nbemmcmd (This is the sybase cmd utility
          (PLEASE BE CAREFUL USING THIS CMD!!
          This cmd is very useful in situations where you have to remove/add a client/media manager/device. here are some examples:

          • This deletes a media manger (nbemmcmd -deletehost -machinename media_server -machinetype media)

          • This deletes a tape (nbemmcmd -deletemedia -mediaid 03000I -originhost server)

          • This tells you if which boxes are have a emmserver and if they are reachable (nbemmcmd -getemmserver)

          • This will let you know if there are any media conflicts (nbemmcmd -listmedia -conflicts)

          • This will let you know what hosts are seen as media_managers and master servers (nbemmcmd -listhosts)

   •  /usr/openv/netbackup/bin/bpps -x (shows all Netbackup process that are running).

   • /usr/openv/netbackup/bin/goodies/available_media 
     (Display all media and its states, and this script does this by 
     running two other commaands and formatting it so it can be seen in a usable format) 

   • /usr/openv/netbackup/bin/admincmd/bpdbjobs (This is esentially the activity monitor)

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