Verifying The Backup; Restoring The Database - Red Hat NETWORK SATELLITE 5.3.0 Installation Manual

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Verifying the Backup

off-site. To conduct a backup, shut down the database and related services first by issuing the

following command as root:

/usr/sbin/rhn-satellite stop

Then switch to the oracle user and issue this command to initiate the backup:

db-control backup DIRNAME

Backup files are stored in the directory specified. Note that this is a cold backup; the database must be

stopped before running this command. This process takes several minutes. The first backup is a good

indicator of how long subsequent backups will take.

Once the backup is complete, return to root user mode and restart the database and related services

with the following command:

/usr/sbin/rhn-satellite start

You should then copy that backup to another system using rsync or another file-transfer utility. Red

Hat strongly recommends scheduling the backup process automatically using cron jobs. For instance,

back up the system at 3 a.m. and then copy the backup to the separate repository (partition, disk, or

system) at 6 a.m.

8.4.3. Verifying the Backup

Backing up the Embedded Database is useful only if you can ensure the integrity of the resulting

backup. RHN DB Control provides two methods for reviewing backups, one brief, one more detailed.

To conduct a quick check of the backup's timestamp and determine any missing files, issue this

command as oracle:

db-control examine DIRNAME

To conduct a more thorough review, including checking the md5sum of each of the files in the backup,

issue this command as oracle:

db-control verify DIRNAME

RHN DB Control makes Embedded Database restoration a relatively simple process. As in the

creation of backups, you will need to shut down the database and related services first by issuing the

following commands in this order as root:

/usr/sbin/rhn-satellite stop

Then switch to the oracle user and issue this command, including the directory containing the backup,

to begin the restoration:

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