Selected subscriber and system data is automatically
backed up nightly to prevent the loss of crucial data in the
event of a disk drive failure. The user-recorded names can
also be backed up weekly. The weekly backups are enabled
or disabled on the System-Parameters Features screen.
Nightly and weekly backups can always be run manually via
the Save screens. The data is restored via the Backup
Avaya IP Office Telephone Systems
Although automated backups save message header information,
voice messages themselves are not backed up automatically
because typically this data changes constantly and
takes up a disproportionate amount of space on the backup
disk. Voice messages can, however, be backed up manually.
See the Save Voice feature for more information.
The system estimates the number of remaining backups possible
on the disk. In DEFINITY AUDIX system Release 4.0,
the system can record up to 2 weeks of nightly and weekly
backups on one 640 Megabye magneto-optical (MO) disk.
Releases earlier than 4.0 can record up to four weeks of
nightly and weekly backups on one 160 Megabyte tape.
Release 4.0’s MO disk drive will overwrite backups on the
MO disk one at a time when the MO disk is full. Releases earlier
than 4.0 will overwrite an entire tape once the tape is full,
unless the tape is replaced.
In releases earlier than 4.0, the system records a warning
message in the administration log if there is room for fewer
than four backups on the disk. In Release 4.0, the system will
record a similar warning when the system can store fewer
than 14 nightly backups and two weekly backups. The system
will still overwrite the nightly and weekly backups one at
a time, rather than overwriting the whole MO disk. When the
system starts this procedure, however, two weeks of nightly
and weekly backups will not be available.
Automatic backups are also useful
for hard disk upgrades.
The nightly and weekly backups
occur after the nightly audits,
which begin at 1:00 AM.
Some non-critical files, including
personal directories and mailing
lists, are not saved automatically
and must be reconstructed after a
Any problems with the backup
(such as those caused by a
defective MO disk) are recorded
on the error log.
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