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Configuring multiple dsmcad instances on a single Linux host.

Question & Answer


Question

How do I configure multiple dsmcad instances to start automatically on a single Linux host?

Answer

Under certain circumstances, it may be beneficial to use multiple dsmcad schedule services on a single Linux client host. This document describes the requirements to configure multiple dsmcad instances to run and start automatically at system start:

1. Create two unique node stanzas in the dsm.sys file (by default, this is located in /opt/tivoli/tsm/client/ba/bin/):



    # cat /opt/tivoli/tsm/client/ba/bin/dsm.sys
    SErvername node1
      COMMMethod         TCPip
      TCPPort            1500
      TCPServeraddress   localhost
      nodename           node1
      errorlogname       /opt/tivoli/tsm/client/ba/bin/dsmerror-node1.log
      schedlogname       /opt/tivoli/tsm/client/ba/bin/dsmsched-node1.log
      managedservices    webclient sched
      httpport           1581
      passwordaccess     generate

    SErvername node2
      COMMMethod         TCPip
      TCPPort            1500
      TCPServeraddress   localhost
      nodename           node2
      errorlogname       /opt/tivoli/tsm/client/ba/bin/dsmerror-node2.log
      schedlogname       /opt/tivoli/tsm/client/ba/bin/dsmsched-node2.log
      managedservices    webclient sched
      httpport           1582
      passwordaccess     generate

NOTE: It may be beneficial to include certain includes/excludes to differentiate these nodes. Otherwise, the same data be be backed up using the two node names.

2. Create two dsm.opt files, one for each node (by default these will be located in /opt/tivoli/tsm/client/ba/bin):

    # cat /opt/tivoli/tsm/client/ba/bin/dsm-node1.opt
    servername node1
    # cat /opt/tivoli/tsm/client/ba/bin/dsm-node2.opt
    servername node2

3. Enable passwordaccess generate by logging in with the credentials for both nodes:

    # dsmc q sess -optfile=dsm-node1.opt
    ...
    # dsmc q sess -optfile=dsm-node2.opt
    ...

4. Make two copies of the default rc.dsmcad init script (by default, this script is located in /opt/tivoli/tsm/client/ba/bin):

    # cp /opt/tivoli/tsm/client/ba/bin/rc.dsmcad /opt/tivoli/tsm/client/ba/bin/rc.dsmcad-node1
    # cp /opt/tivoli/tsm/client/ba/bin/rc.dsmcad /opt/tivoli/tsm/client/ba/bin/rc.dsmcad-node2

5. SLES distributions only: Make two copies of the dsmcad program (by default, this program is located in /opt/tivoli/tsm/client/ba/bin):

    # cp /opt/tivoli/tsm/client/ba/bin/dsmcad /opt/tivoli/tsm/client/ba/bin/dsmcad-node1
    # cp /opt/tivoli/tsm/client/ba/bin/dsmcad /opt/tivoli/tsm/client/ba/bin/dsmcad-node2

6. Edit rc.dsmcad-node1:

    Change this line for RHEL distributions (verified with RHEL 6.4 using the 6.4.0.1 client):
    daemon $DSMCAD_BIN

    To be this:
    daemon $DSMCAD_BIN -optfile=/opt/tivoli/tsm/client/ba/bin/dsm-node1.opt

    Change these lines for SLES distributions (verified with SLES 11 SP3 using the 7.1.2.0 client):
    # Provides: dsmcad
    DSMCAD_BIN=$DSMCAD_DIR/dsmcad
    startproc $DSMCAD_BIN
    echo -n "Starting dsmcad:"
    echo -n "Stopping dsmcad:"
    echo -n "Checking dsmcad:"

    To be these:
    # Provides: dsmcad-node1
    DSMCAD_BIN=$DSMCAD_DIR/dsmcad-node1
    startproc $DSMCAD_BIN -optfile=/opt/tivoli/tsm/client/ba/bin/dsm-node1.opt
    echo -n "Starting dsmcad-node1:"
    echo -n "Stopping dsmcad-node1:"
    echo -n "Checking dsmcad-node1:"

7. Edit rc.dsmcad-node2:

    Change this line on RHEL distributions:
    daemon $DSMCAD_BIN

    To be this:
    daemon $DSMCAD_BIN -optfile=/opt/tivoli/tsm/client/ba/bin/dsm-node2.opt

    Change these lines for SLES distributions:
    # Provides: dsmcad
    DSMCAD_BIN=$DSMCAD_DIR/dsmcad
    startproc $DSMCAD_BIN
    echo -n "Starting dsmcad:"
    echo -n "Stopping dsmcad:"
    echo -n "Checking dsmcad:"

    To be these:
    # Provides: dsmcad-node2
    DSMCAD_BIN=$DSMCAD_DIR/dsmcad-node2
    startproc $DSMCAD_BIN -optfile=/opt/tivoli/tsm/client/ba/bin/dsm-node2.opt
    echo -n "Starting dsmcad-node2:"
    echo -n "Stopping dsmcad-node2:"
    echo -n "Checking dsmcad-node2:"

8. Create new links in /etc/init.d/ to point to the 2 new rc.dsmcad init scripts. This allows the Linux init service to start the dsmcad services at system start:

    # cd /etc/init.d/
    # ln -s /opt/tivoli/tsm/client/ba/bin/rc.dsmcad-node2 dsmcad-node2
    # ln -s /opt/tivoli/tsm/client/ba/bin/rc.dsmcad-node1 dsmcad-node1
    # ls -la dsm*
    lrwxrwxrwx. 1 root root 45 Aug  2 08:04 dsmcad-node1 -> /opt/tivoli/tsm/client/ba/bin/rc.dsmcad-node1
    lrwxrwxrwx. 1 root root 45 Aug  2 08:04 dsmcad-node2 -> /opt/tivoli/tsm/client/ba/bin/rc.dsmcad-node2

9. Register the 2 new rc scripts with chkconfig:

    # chkconfig --add dsmcad-node1
    # chkconfig --add dsmcad-node2

10. Test the configuration with "service start" to make sure the scripts load and start without issue:

    # service dsmcad-node1 start
    Starting dsmcad-node1:                                     [  OK  ]
    # service dsmcad-node2 start
    Starting dsmcad-node2:                                     [  OK  ]
    # ps -ef | grep dsmcad
    root      2689     1  0 09:04 ?        00:00:00 /opt/tivoli/tsm/client/ba/bin/dsmcad -optfile=/opt/tivoli/tsm/client/ba/bin/dsm-node1.opt
    root      2719     1  0 09:04 ?        00:00:00 /opt/tivoli/tsm/client/ba/bin/dsmcad -optfile=/opt/tivoli/tsm/client/ba/bin/dsm-node2.opt

    (SLES distributions will list dsmcad-node1 and dsmcad-node2 as the program name)

11. Reboot and confirm that the two dsmcad instances started automatically:

    # ps -ef | grep dsmcad
    root      1830     1  0 09:14 ?        00:00:00 /opt/tivoli/tsm/client/ba/bin/dsmcad -optfile=/opt/tivoli/tsm/client/ba/bin/dsm-node1.opt
    root      1856     1  0 09:14 ?        00:00:00 /opt/tivoli/tsm/client/ba/bin/dsmcad -optfile=/opt/tivoli/tsm/client/ba/bin/dsm-node2.opt

[{"Product":{"code":"SSGSG7","label":"Tivoli Storage Manager"},"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Component":"Client","Platform":[{"code":"PF016","label":"Linux"}],"Version":"6.3;6.4;7.1","Edition":"","Line of Business":{"code":"LOB26","label":"Storage"}}]

Product Synonym

ITSM ADSM TSM

Document Information

Modified date:
17 June 2018

UID

swg21646832