Administrative files to back up
Although ON-Bar backs up some critical administrative files, you must also include critical files in normal operating-system backups of important configuration files.
Files that ON-Bar backs up
When you back up a storage space, ON-Bar also
backs up the following critical files:
- The onconfig file
- UNIX™: The sqlhosts file
- The ON-Bar emergency boot file: ixbar.servernum
- The server boot file: oncfg_servername.servernum
Look
at the bar_act.log file to determine whether
critical files are successfully backed up. The return code for the onbar
-b command indicates only whether storage spaces are successfully
backed up. The
following lines from the bar_act.log file show
that the ON-Bar emergency
boot file, ixbar.0, is backed up:
Begin backup of critical file '/opt/informix-11.70.fc7/etc/ixbar.0'.
Completed backup of critical file '/opt/informix-11.70.fc7/etc/ixbar.0'
Files that you must manually back up
In
addition to the critical files, you must also manually back up the
following administrative files:
- The sm_versions file
- Storage-manager configuration and data files
- Simple-large-object data in blobspaces that are stored on disks
- Externally stored data such as external tables that a DataBlade® maintains
- The keystore and stash files for encrypting storage spaces, as specified by the DISK_ENCRYPTION configuration parameter
Tip: Even
though ON-Bar includes
the critical files with the files it backs up, it is a good practice
to also include the critical files in your system archive. Having
the critical files included in both the HCL Informix® and
system archives gives you more options if you need them.
Files that ON-Bar re-creates
Although ON-Bar does
not back up the following items, ON-Bar automatically
re-creates them during a restore. You do not need to make backup copies
of these files:
- The dbspace pages that are allocated to the database server but that are not yet allocated to a tblspace extent
- Mirror chunks, if the corresponding primary chunks are accessible
- Temporary dbspaces
ON-Bar does not back up or restore the data in temporary dbspaces. Upon restore, the database server re-creates empty temporary dbspaces.