Re: Onbar and large databases

Hi Jeffrey, Jeffrey E. Screws wrote: > > I have a system that I inherited that has a 200gigabyte Informix > database. I need to come up with a more reliable backup procedure. > Currently we use a Spectralogics 10000 tape jukebox, with its > accompanied software "Alexandria". The currect backup process does a > RPF (?? I think this is right) backup of the raw logical volumes (HP-UX > lvm). This requires a full recovery of the entire database if a single > disk fails. It also takes 15 hours with the database offline. > > I am fairly new to the Informix arena, but I had read a little about > Onbar. Is it true that Informix only recommends Onbar for databases of > 10gb or less? > > I need to improve the speed and reliability of the backup for this > database. Any suggestions or ideas would be greatly appreciated. OnBar offers more features than "ontape". You can backup and restore single dbspaces ( let's say a dbspace is a disk ) and you can do it in parallel mode. So there's no need to perform a whole system backup and this might speed up your backup and restore performance. Bye Stefan Weideneder