EMC Legato NetWorker Commands Reference

nsrd

SYNOPSIS

       nsrd [ -k virtual-service-name ]

       ansrd [ commentary ]

DESCRIPTION

       The  nsrd  daemon provides an RPC-based save and recover service.  This
       service allows users to save, query for, and recover their files across
       a network.  The RPC program number provided by nsrd is 390103.

       Normally  nsrd  is  invoked  from  a  startup shell script (for example
       rc.local, rc.boot) at boot-time, and should never need  to  be  started
       directly by a user.  After it is started, nsrd starts up the other dae-
       mons it needs to provide the NetWorker service.

       The nsrd command must be run on a machine with  appropriate  resources.
       These  resources  include  devices (for example, tape drives) which are
       under the control of the media multiplexor  software  (see  nsrmmd(1)),
       and  sufficient disk space for the index daemons, (see nsrindexd(1) and
       nsrmmdbd(1)) to maintain the index of saved user files and volumes with
       corresponding files.

       Each time a backup, recover, or another session begins, nsrd starts the
       program, ansrd, to process the requested session.  The ansrd program is
       called  an  agent.   The  agent is in charge of monitoring that backup,
       recover, or another session, and automatically  exits  when  a  session
       completes.   Using  ps(1)  or  another process monitoring tool, you can
       inspect the subsequent parameters of ansrd to see what kind of  session
       it  is  monitoring.  If necessary, agents can be forcibly terminated to
       abort a backup or recover session.  Agents cannot be run directly; they
       can only be started by nsrd.

       When  nsrd  is  started with the -k option, it checks to see whether it
       has been installed as a cluster service and that the virtual host which
       owns /nsr/res matches virtual-service-name.  If either of these valida-
       tion steps fails, nsrd exits immediately.  (To check whether  NetWorker
       has  been installed as a cluster service, nsrd checks for a file called
       NetWorker.clustersvr in the directory containing the nsrd  binary.   To
       check  that /nsr/res is owned by virtual-service-name, nsrd queries the
       cluster management software.)

       If the -k option is not used when starting NetWorker in a cluster,  the
       server  assumes  the  identity of the virtual host which owns /nsr/res.
       If no virtual host owns /nsr/res, then nsrd will not start.

OPTIONS

       -k virtual-service-name
              Instructs nsrd to start up in cluster failover mode  using  vir-
              tual-service-name as its hostname/identity.  This option is used
              by the NetWorker cluster control script which starts  NetWorker.

FILES

       NetWorker.clustersvr
                 If this file exists in the directory  containing  NetWorker's
                 daemons,  it  indicates  that  the  NetWorker server has been
                 installed as a cluster service.

SEE ALSO

       nsr(1), nsr_service(5), nsrmmd(1), nsrmmdbd(1), nsrindexd(1), ps(1),
       rc(1).

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