Forum Discussion

nike_new's avatar
nike_new
Level 6
12 years ago

cluster

NBU 7.1

Linux OS

 

I have NBU installed in clusters on server A and server B.Virtual name is uv123.

I just wanna know how I will I stop NBU services :

  1. On node A ,so that control does not go to node B
  2. On node A ,so that control does  to node B
  3. What will show in the /usr/openv/netbackup/logs if Transfer occcurs?
ApplicationHA
business continuity
  • mikebounds's avatar
    mikebounds
    12 years ago

    As in last message, using "-sys A" means the group will ONLY be offlined on sys A, so if it is online on sys B, then using "-sys A" will NOT offline group on sys B.  If you use "-any", it will offline the group regardless of which system it is online on.

    Mike

  • mikebounds's avatar
    mikebounds
    Level 6
    12 years ago

    If you run "hagrp -state" you should see a list of service groups and their state (which system they are online on).  If you run:

    hagrp -offline grp_name

    This will stop the NBU service and it will NOT switch to another node

    If you run:

    hagrp -switch grp_name -to sys_name

    This will stop the NBU service and start it on "sys_name"

    Note offlining the service group will also umount filesystems, deport the diskgroup and unplumb the virtual IP - if you JUST want to stop the NBU service, then you can use:

    hares -offline nbu_res_name

     

    You can get a list of resource by command "hares -list"

    Mike

  • nike_new's avatar
    nike_new
    Level 6
    12 years ago

    I dont have to run:

    /usr/openv/netbackup/bin/goodies/netbackup stop?

  • mikebounds's avatar
    mikebounds
    Level 6
    12 years ago

    No - if you do this, then VCS will see this as a failure and switch to other node.  If you want to bring down NBU manually, then you can run:

    hagrp -freeze grp_name

    and this means VCS will ignore what happens to the resources in grp_name, so you can take down NBU without VCS failing it over to the other node.

    When you manually bring NBU back online you can thenn unfreeze:

    hagrp -unfreeze grp_name

    Mike

  • nike_new's avatar
    nike_new
    Level 6
    12 years ago

     

    hagrp -switch grp_name -to sys_name

     

    If you run:

    hagrp -switch grp_name -to sys_name

    This will stop the NBU service and start it on "sys_name"

     

    I am on node A and my my grp name is grp23 and i run below command from node A

     

    hagrp -switch grp23 -to B

    In this case ,NBU will be stopped on node A nd will run on Node B?

  • nike_new's avatar
    nike_new
    Level 6
    12 years ago
    COMMAND=/opt/VRTS/bin/hagrp -offline SG -any COMMAND=/opt/VRTS/bin/hastatus summary COMMAND=/opt/VRTS/bin/hagrp -offline nbu_group -sys A COMMAND=/usr/openv/netbackup/bin/bpps -a PWD=/usr/openv/netbackup/logs/cluster ; COMMAND=/usr/bin/tail -f log.011234 what does above command does? We did this yesterday.
  • mikebounds's avatar
    mikebounds
    Level 6
    12 years ago

    hagrp -offline SG -any - OFFLINE group "SG" REGARDLESS OF WHAT SYSTEM "SG" IS ONLINE ON
    hastatus summary - SHOW SUMMARY INFORMATION 
    hagrp -offline nbu_group -sys A - OFFLINE nbu_group IF IT IS ONLINE (OR PARTIALLY ONLINE) ON SYSTEM A (THIS COMMAND WILL DO NOTHING IF nbu_group IS ONLINE ON B)
     

    Mike

  • nike_new's avatar
    nike_new
    Level 6
    12 years ago

    hagrp -offline SG -any  and   hagrp -offline nbu_group -sys A

     

    What is the difference between these 2?