If a client backup failed in EMC legato networker these setups helps you.
# /usr/sbin/ping xxx.abc.com xxx.abc.com is alive It is confirms that client is ping able so we can move for second step.
# /usr/bin/rpcinfo -p xxx.abc.com program vers proto port service 100000 2 tcp 7938 rpcbind 100000 2 udp 7938 rpcbind 390436 1 tcp 9101 390435 1 tcp 8920 390113 1 tcp 7937 nsrexec
By this out put it is confirm that nsrexec running on client.
# /usr/sbin/nsradmin -s xxx.abc.com -p 390113
nsradmin> print nsrla type: NSRLA; name: xxx.abc.com; NW instance info operations: ; NW instance info file: ; installed products: NetWorker 7.4.3.Build.569; version: "EMC NetWorker 7.4.3.Build.569 "; servers: backup.abc.com; auth methods: "0.0.0.0/0,nsrauth/oldauth"; administrator: No privilege to view administrator list; kernel arch: AMD_X8664; machine type: server; OS: Windows Server 2003 5.2; NetWorker version: 7.4.3.Build.569; client OS type: Windows NT Server on Intel; CPUs: 8; MB used: 23525; IP address: 10.206.1.24, 192.168.41.12; Above out put may gives the clue about the ip interface and client version which helps you out in trouble shooting.
Can not start "crs" service, system error:  1053 Unknown Error Can not start "uiproxy" service, system error:  1053 Unknown Error. Above error happens in Linux , if you miss glib packages. it is known issue with Data protector.
Crs account may not started due to one more reason: If installation user account password changed it will not start .
If you want to give restore permission other than backup owner or owner group or any user. we must select PUBLIC option in bakcup specification, this allows permitter user /admin group member to restore backup data.
CRS (Cell Request Service ) is the owner for all backups in HP data protector. because CRS is the intiator for all backup specifications (Except Some of BAR applications ) Why we add DBA system user in backup admin group ? Bacause this account acts as CRS for this accounts.
What happens if CRS account is changed and it is not update in Data protector user list ? No backu will initiated :(