| DATABASE ADMINISTRATION |
REMOTE DBA
HOT-STANDBY
DISASTER RECOVERY
V4.3 DBO/BACKUP/ONLINE (DBMS only)
TECHNICAL
ARTICLES -> TROUBLESHOOTING
ARTICLES
Q: |
We are currently using
a very old version of DBMS and experiencing
a problem with our current online backup feature. Do you know
why?
|
A: |
Yes, a problem has
been discovered on the online backup feature of DBMS v4.3. In some
situations, the use of DBO/BACKUP/ONLINE (without
the /MULTITHREADED qualifier) may create an invalid backup file.
If a database is restored form this backup, it is possible that the resulting database
will contain some corruption. Note: this alert does not apply
if you are using the /MULTITHREADED backup feature. *Digital had a mandatory
update to resolve this problem on February 5, 1993. If you are using on
ONLINE backup features of version 4.3, then you must install this
update immediately. If you are running
v4.3, and you are not able to immediately apply this mandatory
update, then you should change your DBO/BACKUP routines to use the
/MULTITHREADED feature or remove the /ONLINE qualifier.
Failure to do so may result in an unusable database backup. Better
yet, consider upgrading to a more recent release (v4.3 was released
in June 1992).
*Note: Oracle purchased the Rdb family of products, including DBMS, from Digital in 1995. |