Using
RHN DB Control
55
8.4. Using RHN DB Control
RHN Satellite Server with Embedded Database requires a utility for managing that database. Red Hat
provides just such a tool:
RHN DB Control
. This command line utility allows you to do everything from
make, verify, and restore backups to obtain database status and restart it when necessary. You
must
be the oracle user to invoke
RHN DB Control
. To begin, switch to the oracle user:
su - oracle
Next, issue the following command:
db-control
option
8.4.1. DB Control Options
RHN DB Control
offers many command line options. To use them, as oracle insert the option and the
appropriate value, if needed, after the
db-control
command.
Option
Description
help
Lists these
db-control
options with additional
details.
backup
DIRNAME
Backs up the database to the directory specified.
examine
DIRNAME
Examines the contents of a backup directory. Returns
the timestamp of backup creation and reports on its
contents.
extend
Increase the RHN Oracle tablespace
report
Reports on current usage of database space.
restore
DIRNAME
Restores the database from backup kept in DIRNAME.
Database must be stopped for this command to run
successfully.
start
Starts the database instance. This can also be
accomplished by issuing the
service rhn-
database start
command as root.
status
Shows the current status of the database, either
"running" or "offline".
stop
Stops the database instance. This can also be
accomplished by issuing the
service rhn-
database stop
command as root.
tablesizes
Show space report for each table
verify
DIRNAME
Verifies the contents of the backup kept in DIRNAME.
This command checks the md5sums of each of the
files kept in the backup.
Table 8.1. RHN DB Control Options
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