Legato NetWorker ClientPak for MPE/iX Installation Guide

15
Backing Up Multiple Save Paths in Parallel
A new feature of the NetWorker ClientPak for MPE/iX allows you to back up
multiple save paths in parallel. The actual number is limited by the
"parallelism" value assigned to the parallelism attribute for MPE client
configuration on the NetWorker server. The default setting for the parallel
attribute is 4 parallel backups. The number of parallel backups is also limited
by other clients competing for the NetWorker server's resources at the time of
the backup. Powerful client hosts should be able to gracefully run several
scheduled backup processes concurrently. Finally, besides setting the
"parallelism" attribute on the NetWorker server to "1" to completely turn off
parallelism, you can turn off parallelism using a new system variable. See
“Turning Off Parallel Backups” (on page 18) for information in this new
system variable.
Important: If multiple saves are running in parallel, the logs of your
NetWorker backups will be corrupt (see “Creating Logs of Your NetWorker
Backups” (on page 17). The solution is to turn parallelism off.
Determining What Server-Initiated Saves Will Run
The SAVEFS program determines what server-initiated saves will run. You
can probe the server from your MPE client with the SAVEFS program, as in
the following example:
: RUN SAVEFS;INFO="-p -s jupiter "
type: NSR client description;
pools supported: Yes;
remote user: MANAGER.SYS;
client OS type: HpOS;
IP address: 137.69.101.27;
NetWorker version: dev;
OS: MPE/iX C.55.00;
version: dev;
save set: path=/PROJ_VOLUME_SET, level=full, diskno=1,
max_sessions=1,
stype=save,\
path=/MPEXL_SYSTEM_VOLUME_SET, level=full, diskno=0,