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Usually, for each 16 MB written, the WAL file being written to is switched, and the WAL file for which writing has been completed
is saved to the "wal" directory under the backup directory.
Periodically executing the rcxmgrbackup command allows the contents of updates to the database that are recorded in saved WAL
files to be maintained for a certain period of time. For example, when the rcxmgrbackup command is executed every hour, the
contents of updates performed in the most recent one-hour period will be saved.
Refer to "Differential Backup" in "10.1.3 Online Backup of the Admin Server" for details.
Restoring the Admin Server
Database restoration restores by applying to the base backup the contents of updates to the database in WAL files that have been output
after the base backup was taken. The rcxmgrrestore command is used for restoration.
Refer to Section "10.1.4 Restoring the Admin Server" for details.
10.1.1 Mechanism of Backup and Restoration
This section describes the mechanism of backup and restoration, including environment requirements, points to note, and the restart position
after restoration, in a system in which this product is installed.
Backup and Restoration Environment Requirements
The following conditions must be satisfied in the environments to be backed up and restored:
- The operating systems match.
Note that this does not include operating system version differences.
- The host information (host name or IP address) matches.
- The character code systems match.
- The directory services match.
- The product installation folders match.
Points to Note at Backup and Restoration
This section describes the points to note when backup and restoration is being performed.
- Administrator privileges are required in order to execute the commands.
- If, and only if, resources backed up using online backup are to be restored, execute the command that disables a service application
for which an application process no longer exists (recoverAllService command).
- Perform backup and restore operations as described below for ServerView Operations Manager, which is mandatory software. Refer
to a ServerView Operations Manager manual for details.
- Backup Operations
Perform system backup in accordance with Management Server system backup operations.
When a registration or update of user information has occurred, perform backup again
- Restoration Operations
a. Perform restoration of the entire Management Server system.
b. Use the restoration procedure described in this document to perform restoration.
- If systems backed up using offline and online backup are to be restored, perform restoration in the following order:
1. Restoration of systems backed up using offline backup
2. Restoration of systems backed up using online backup
- When moving backup resources, move the folder specified in the backup destination as well as all folders and files under that folder.
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