How to Backup Oracle 11g on linux OEL 7

[ceta60]

how can i backup oracle database under a linux host ?
Environment : Virtualized
Hypervisor : VMware esx 6i .
linux: Oracle Enterprise Linux 7 (x64)
Oracle Database RDBMS : 11.2.0.3.0
Application E-business Suite: 12.2.4

when i try to make a backup job and provide the credential for application aware "Oracle".
the backup completes only for the VM operating system, but it doesn't perform any backup of the database, i try to use the veeam explorer to find database objects but non.

anyone can help ?

[PTide]

Hi,

Do you see any messages or warnings realted to application processing in the backup session log?

Thanks

[ceta60]

Hi PTide
I get error
" oracle error has occurred ora12547: tns:lost contact"

Is there thing i should configure on the veeam server. (Example : install oracle home. Edit tnsora. Edit hosts file....etc)
Is there anything to be done on db server?.

Thanks in advance

[PTide]

Hi,

It seems that, the connection to the listener service on the Oracle server drops, for some reason.
Are you able to tnsping the database? If yes, then try to connect to the database manually via sqlplus from the Windows server using SYSDBA account. If that works, then you'll need to either check "Troubleshooting ORA-12547 TNS: Lost Contact" (DOC 555565.1) (which must be available via oracle support portal), or contact Oracle support directly - there are many reasons why listener may behave badly. There is also an option to seek for help in Oracle community.

Thanks