It is already known to us that onbar backs up some critical administrative files during storage space backup. These critical files are as follows:
- The onconfig file
- UNIX: The sqlhosts file
- The ON-Bar emergency boot file: ixbar.servernum
- The server boot file: oncfg_servername.servernum
There may be a situation when you need to restore one of these files, for example: replace disks, restore to a second computer system (imported restore) etc. However, previously there was no easy way to restore these files from onbar backup. You need to depend on the Informix Technical Support to perform this operation.
Starting with Inofrmix vesion 12.10.xC2, you can restore the critical files that you backed up with onbar utility. Onbar cold restore has an option now to restore these files or you can only restore these file without perform the storate space restore.
Use 'onbar -r -cf yes' to restore critical file during cold restore. Alternatively, you can use 'onbar -r -cf only' to extract critical files while Informix server is offline.