I'd call it a new build of 7.3 though. Haven't tried it myself yet,
but the list of bugs fixed seems to adress some of the problems
we've been experiencing (from the README):
Addressed in this NetWorker package include the following fixes:
---------------------------------------------------------------
LGTpa80816: SYSTEM STATE backup of Windows client fails
LGTpa82466: Savepnpc pstclntsave core dumps intermittently
LGTpa83356: Automatic staging fails to delete cloned savesets after
an error
LGTpa85010: NW 7.3 nsrexecd cores dump on Linux 4.0
LGTpa85124: Cannot acquire up to reserved number of licenses from LLM
LGTpa85174: NMC 3.2 resource issues after upgrading from NMC 3.1
LGTpa85535: Failed to load tapes during inventory w/o bar code
LGTpa85546: savepsm hangs when backing up lgto_gst.db > 4 Gbytes
LGTpa85594: NetWorker nsrd coredumps when there is no "pool" to select
LGTpa85603: NetWorker Tape marks itself full prematurely
LGTpa85721: NetWorker nsrd memory leak when run nsrmm -d -S ssid
LGTpa85937: Out of memory errors in gstd.log
LGTpa86026: NetWorker error: Server is not licensed for DiskBackup
LGTpa86286: 7.3 nsrd dumping core on HPUX 11i
LGTpa86328: Media Database corruption/Storage Node daemon failure
LGTpa86833: CFI backup faled while backing up 50+ clients
LGTpa86995: discrepancy in mminfo output
LGTpa87215: nsrmmgd dumps core if device not in res files
LGTpa87361: add "init element status" to UI Inventory action
LGTpa87368: ignore missing save set & client name in jobd session
info rec
LGTpa86982: Add filename and linenumber debugging into error objects
LGTpa84843: FSC: nsrd loses connection to mediadb
LGTpa84618: Device is assigned to nsrmmd :: Cannot unload volume
from drive
LGTpa86273: Server is not retrying a retyable errorfor load operation
LGTpa85809: Temporary mmd not restarted for recover side of clone
operation
LGTpa84620: Slot X is loaded into unavailable drive :: volume stuck
in drive
LGTpa85337: SSL errors caused by bad buffering codein session channels
LGTpa86290: w/GSSLegato auth:nsrexecd makes frivolous localhost
connections
LGTpa84882: Buffer overflows in nsrexecd command execution request
LGTpa87659: Copyright information is incorrect for NW 7.3 Jumbo
End of README
The packages are available via FTP from: ftp://ftp.legato.com/
outgoing/LGTpa87661jp/