EMC Legato NetWorker Commands Reference

nsrssc

SYNOPSIS

       nsrssc -c client -N saveset [ -p pool ] [ -r ] [ -vq ]

DESCRIPTION

       nsrssc  consolidates the most recent level 1 (partial) save set and its
       corresponding full-level save set into a new full-level save set.  This
       consolidation  process effectively achieves the same outcome as a full-
       level backup at the time partial backup was done.

       Normally, nsrssc is invoked within savegrp(1) as part of  a  consolida-
       tion-level  backup.  During  the consolidation-level backup, savegrp(1)
       automatically generates a level 1 backup, then calls nsrssc to create a
       consolidated backup, using the latest full-level save set.

       Using  nsrssc  allows for greater flexibility in scheduling backups and
       save set consolidation.  Unlike the savegrp(1) command, which completes
       a  consolidation  backup prompty after the level 1 backup is completed,
       nsrssc allows you to schedule the consolidation at  a  different  time.
       Scheduling  a  time  between  the  full backup and consolidation backup
       frees up NetWorker to complete other processes.

       If you execute nsrssc manually, the most recently  backed-up  save  set
       must  be  a  level 1 save set; otherwise, the consolidation will not be
       successful.

       The nsrssc command requires at least two active devices.  The  consoli-
       dation  process uses simultaneous device reads and writes to create its
       consolidated save set.  This mechanism creates a restriction  upon  the
       location  of  the  newly  created save set.  The new save set cannot be
       created on the same volume where the  partial  or  full  save  set  was
       derived.   Also,  volumes containing the previous full and level 1 save
       sets must reside on the same storage node.

OPTIONS

       -c client
              Indicates the name of  the  client  whose  save  set  should  be
              included for the consolidation process.

       -N saveset
              Indicates the name for the generated consolidated save set.

       -p pool
              Specifies  the  destination media pool to build the consolidated
              full save set.  The pool may be any  pool  currently  registered
              with  nsrd(1).   The selected pool must be the same pool type as
              the previous full-level save set.  You can view pool  values  by
              selecting  Pools  from  the Administration menu of networker(1).
              Pool values  are  also  listed  in  the  NSRpool  resource.  See
              nsr_pool(5).

              If  this  option is omitted, then the consolidated save sets are
              attempt to remove the level 1 if consolidation fails.

       -v     Enables verbose operation.  In this  mode,  additional  messages
              may be generated during the consolidation process.

       -q     Runs quietly.  This is the default mode.

EXAMPLES

       The  following  examples  demonstrate how save set consolidation can be
       performed.  In both examples, a save set defined in group name  elmanco
       is  consolidated  for  client  delepanto.   The save set data for group
       elmanco is /etc and /users .

       Example:

       To perform a save set consolidation, use the following commands:
              savegrp -l 1 -I -G elmanco
              nsrssc -c delepanto -N /etc
              nsrssc -c delepanto -N /users

       Note that this example is almost the same as doing a savegrp -G elmanco
       -l c.  The only differences are:
        1)  No index and bootstrap is backed up after data is consolidated.
        2)   If  there  is  a  failure during the consolidated process, a full
       backup is not performed.

       Example:

       To direct level 1 data to a disk cache (file-type device) and have  the
       level  1 save set removed after a full-level save set is built on tape,
       perform the following operations:

        1. Set up a pool which only accepts level 1 data and its  devices  are
       only file type devices.
        2. Run the following commands:
              savegrp -G elmanco -l 1 -I
              nsrssc -c delepanto -N /etc -r
              nsrssc -c delepanto -N /users -r

       This  process  removes  the  level 1 completely. Also, since fast media
       (disk-file type) is involved, this process may be a much faster way  of
       generating a full-level save set when compared to doing a regular full-
       level backup.

DIAGNOSTICS

       On successful completion, nsrssc returns zero;  otherwise,  a  non-zero
       value is returned.

       Some error codes are:

       98  Failed  because  the  level 1 and previous full are not in the same
       storage node.

       99 Failed, most likely due to a renamed/deleted directory condition

       You may also see one of the following messages:

       You are not authorized to run this command
              able to answer any queries.

SEE ALSO

       nsr_schedule(5), mminfo(1), savegrp(1)

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