How Could You Increase The Speed Of Ontape/onbar Backups ?

1.	How Could You Increase The Speed Of Ontape/onbar Backups ?
Answer» On a platform with FAST cpus, write low performance and compresable data, the ontape output may be piped and compressed before getting on disk (less IO write OPERATIONS). With onbar, greater backup SPEEDS can be achived by: Increase the number of onbar threads -&GT; BAR_MAX_BACKUP Increase the buffers used by onbar (if memory is available) ? BAR_NB_XPORT_COUNT Use a fast storage for the storage pool (We use onbar + IBM Tivolli Storage Manager) Consider taking incremental backups

Answer»

On a platform with FAST cpus, write low performance and compresable data, the ontape output may be piped and compressed before getting on disk (less IO write OPERATIONS).
With onbar, greater backup SPEEDS can be achived by:
Increase the number of onbar threads -&GT; BAR_MAX_BACKUP
Increase the buffers used by onbar (if memory is available) ? BAR_NB_XPORT_COUNT
Use a fast storage for the storage pool (We use onbar + IBM Tivolli Storage Manager)
Consider taking incremental backups

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