| An LCR copy is used for disaster recovery because you can |
| switch to the LCR copy in a few seconds. If an LCR copy is used |
| for backup and if it is located on a different disk than the original |
| data, then the I/O load on a production database is minimal. |
| A replicated storage group is represented as a new instance of |
| Exchange writer called Exchange Replication Service and can |
| be backed up (using VSS) as a normal storage group. |
| See also cluster continuous replication and Exchange Replication |
| |
lock name | You can configure the same physical device several times with |
| different characteristics, by using different device names. The |
| lock name is a user specified string that is used for locking all |
| such device configurations to prevent collision if several such |
| devices (device names) are used concurrently. Use an identical |
| lock name for all device definitions which use the same physical |
| device. |
log_full shell script | (Informix Server UNIX specific term) A script provided by |
| that you can use to start backing up logical log files when |
| Informix Server issues a logfull event alarm. The Informix Server |
| ALARMPROGRAM configuration parameter defaults to the |
| INFORMIXDIR/etc/log_full.sh, where INFORMIXDIR |
| is the Informix Server home directory. If you do not want logical |
| logs to be backed up continuously, set the ALARMPROGRAM |
| configuration parameter to INFORMIXDIR/etc/no_log.sh. |
logging level | The logging level determines the amount of details on files and |
| directories written to the IDB during backup, object copying, or |
| object consolidation. You can always restore your data, |
| regardless of the logging level used during backup. Data |
| Protector provides four logging levels: Log All, Log Directories, |
| Log Files, and No Log. The different logging level settings |
| influence the IDB growth, backup speed, and the convenience |
| of browsing data for restore. |
This applies to online database backup. | |
| files in which modified data is first stored before being flushed |
| to disk. In the event of a failure, these |
| to roll forward all transactions that have been committed as well |
| as roll back any transactions that have not been committed. |
372Glossary