object verification
session
A process that verifies the data integrity of specified backup
objects or object versions and the ability of selected Data
Protector network components to deliver them to a specified
host. Object verification sessions can be run interactively, or as
specified in automated post-backup, or scheduled specifications.
offline backup A backup during which an application database cannot be
used by the application.
• For simple backup methods (non ZDB), the database is
generally put into a quiescent state that allows use by the
backup system, but not the application, for the whole backup
period (several minutes or hours). For instance, for backup
to tape, until streaming of data to the tape is finished.
• For ZDB methods, the database is also put into the quiescent
state, but for the period of the data replication process only
(several seconds). Normal database operation can then be
resumed for the rest of the backup process.
See also zero downtime backup (ZDB) and online backup.
offline recovery Offline recovery is performed if the Cell Manager is not
accessible, for example, due to network problems. Only
standalone and SCSI library devices can be used for offline
recovery. Recovery of the Cell Manager is always offline.
offline redo log See archived redo log.
ON-Bar (Informix Server specific term) A backup and restore system for
Informix Server. ON-Bar enables you to create a copy of your
Informix Server data and later restore the data. The ON-Bar
backup and restore system involves the following components:
• the onbar command
• Data Protector as the backup solution
• the XBSA interface
• ON-Bar catalog tables, which are used to back up dbobjects
and track instances of dbobjects through multiple backups.
ONCONFIG (Informix Server specific term) An environment variable that
specifies the name of the active ONCONFIG configuration file.
If the ONCONFIG environment variable is not present, Informix
Server uses the configuration values from the onconfig file in
the directory INFORMIXDIR\etc (on Windows) or
INFORMIXDIR/etc/ (on UNIX).
Disaster recovery guide 185
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