8 Re-imaging Oracle Database Appliance
Bare metal operating system re-imaging installs Oracle Database Appliance operating system software on the local (boot) drive.
Bare Metal is a non-virtualized Oracle Database Appliance configuration. Oracle Database Appliance ships from the factory with a bare metal configuration, default ISO image and Appliance Manager installed. Use the OS ISO Image to restore the OS to the "shipped from factory" state. Use only when necessary. Reimaging does not patch the firmware or update the component versions; it only re-images the local system disk from an operating system perspective. After imaging is completed, redeploy the End User image, then restore from backup, as needed.
- Uninstalling Oracle Database Appliance Components
Use the Oracle Database Appliance cleanup deploy utility,/opt/oracle/oak/onecmd/cleanup.pl
to uninstall Oracle Database Appliance components. - Restoring an Oracle Database Appliance Baremetal System
Re-image Oracle Database Appliance to perform a bare metal restore of Oracle Database Appliance. - Performing Secure Erase of Data on Storage Disks
With this release, you can securely erase data from storage devices. Running the secure erase tool deletes the data on the storage disk permanently.
Related Topics
Uninstalling Oracle Database Appliance Components
Use the Oracle Database Appliance cleanup deploy utility, /opt/oracle/oak/onecmd/cleanup.pl
to uninstall Oracle Database Appliance components.
About the Cleanup Utility
Use the cleanup deploy utility to do the following:
-
Uninstall Oracle Auto Service Request (Oracle ASR)
-
Uninstall Oracle Trace File Analyzer (TFA)
- Uninstall Oracle ORAchk Health Check Tool
-
Uninstall Oracle Grid Infrastructure and the Oracle stack
-
Reset or delete the Oracle Linux udev rules
-
Delete users and groups that were created when the appliance was created.
The script removes the firstnet config and the client access VLAN UNIX_DB, but does not delete any other VLANs. The script also resets any disabled CPU cores and enables all of the cores.
The cleanup utility runs in two modes: default and force mode. In the default mode, the commands used as part of cleanup do not use the force option. The Oracle ASM disk status is changed from MEMBER to FORMER, but ASM header on the disk is not erased. The default mode can be used only for cleaning up or re-provisioning of the same system.
Note:
For High-Availability systems, run the cleanup utility on both nodes sequentially. Ensure that the cleanup utility has completed on the first node, and then start the process on the second node.Running the Cleanup Utility for a Baremetal Deployment
# perl /opt/oracle/oak/onecmd/cleanup.pl [-griduser grid_user] [-dbuser db_user] [-groups comma separated list of groups][-erasedata] [f]
When the grid_user and db_user are the same (roleSeparation=false
), you must run the script for each user (-gridUser
and -dbUser
).
Table 8-1 Command Options for Cleanup Utility
Option | Description |
---|---|
grid_user |
Describes the Oracle Grid Infrastructure user name. The default user is grid .
|
db_user |
Describes the database user name. The default user is oracle Example with
|
groups |
Describes the comma-separated list of groups. The default groups are oinstall,dba,asmadmin,asmoper,asmdba .
|
erasedata |
Erases the data disks which are used by Oracle Database software. It is mandatory to run this option if intention of cleanup is to reuse or move these disks on other systems. Example of secure erase:
|
cleanDefNet |
Cleans up the default public network. |
checkHeader |
Checks for OAK/ASM header on disks after successfully running the cleanup script. Use this to validate if the OAK/ASM header was erased by the cleanup script or not.
Example of checking disk header:
|
f |
In the force mode, all commands use the force option. The ASM disk header is erased. The Example of default mode:
Example of force mode:
|
Running the Cleanup Script for a Virtualized Platform Deployment
You can use the cleanup deploy script tool to clean up ODA_BASE on Oracle Database Appliance Virtualized Platform.
- Before removing ODA_BASE, ensure that you run the
/opt/oracle/oak/onecmd/cleanupDeploy.pl
script.# /opt/oracle/oak/onecmd/cleanupDeploy.pl [-h] [-erasedata]
- Run the following command from dom0 on Node 0 to remove ODA_BASE and the
initial network configuration.
# /opt/oracle/oak/tools/cleanOdabase.py
Restoring an Oracle Database Appliance Baremetal System
Re-image Oracle Database Appliance to perform a bare metal restore of Oracle Database Appliance.
Bare metal restore uses Oracle Integrated Lights Out Manager (ILOM) to re-image the Oracle Database Appliance node. The ILOM must be configured before performing a bare metal restore or re-image. Generally, the ILOM is configured as part of readying for deploying Oracle Database Appliance.
Download the Oracle Database Appliance Bare Metal ISO image to your local machine before you launch the ILOM console.
Related Topics
Parent topic: Re-imaging Oracle Database Appliance
Performing Secure Erase of Data on Storage Disks
With this release, you can securely erase data from storage devices. Running the secure erase tool deletes the data on the storage disk permanently.
Note:
Running the secure erase tool removes data from storage disks permanently. If you have any data on the disk, then take a backup of your storage disk before running the secure erase tool.Example 8-1 Options for the Secure Erase Tool
Option | Description |
---|---|
-a , --all |
Erases all disks. For example:
|
--disk disk1,disk2
|
Erases specified disks. For example:
|
--dryrun |
Runs the tool in the test mode |
--type HDD|SSD|NVMe |
Erases the type of disk specified |
-v , --verbose |
Displays verbose output |
-h , --help |
Displays all CLI options for the tool |
Parent topic: Re-imaging Oracle Database Appliance