Hot online catalog backup jobs

Problem

DOCUMENTATION: In NetBackup 6.5, a hot online catalog backup normally consists of one parent job and three child jobs.

Solution

When an online catalog backup is run, it normally generates four jobs on NetBackup 6.5: a parent job, a child job for copying database files to a staging directory, a child job for NetBackup relational database tables, and a child job for catalog images and configuration data.

Here is an example of how a catalog backup might look in the Activity Monitor (Figure 1):

 

In this example:

• JOBID 1 is the parent job.
• JOBID 2 is a child job that makes a temporary copy of database files to a staging directory (/usr/openv/db/staging for UNIX and Linux, \NetBackupDB\staging for Windows)
• JOBID 3 is a child job for NetBackup relational database(s)

Configuration files (server.conf, database.conf, vxdbms.conf)

Database files:

NBDB.db

NBDB.log

EMM_DATA.db

EMM_INDEX.db

If BMR has been installed:

BMRDB.db

BMRDB.log

BMR_DATA.db

BMR_INDEX.db

• JOBID 4 is a child job for image catalog backup.

Note: Transaction logs are truncated after a successful full or incremental backup.
If the transaction logs are manually changed or deleted, there could be a hole in the recovery.