The current problem with maximizing backup and restore throughput with onbar is that it is very difficult to tell what to tune. Am I disk I/O bound? Am I tape I/O bound? Where is my throughput bottleneck? What should my BAR_MAX_BACKUP parameter be set to? How do I know I have everything configured properly?
These Onbar Performance Tools have been developed to assist in answering those kind of questions.

• Onbar/Storage Manager Configuration
• How do I test my backups
• How do I test my restores
• Storage Manager compression conciderations
• Storage Manager interleaving conciderations
• Case Study

NULL XBSA Library

This library will intercept all data being sent to the storage manager and do nothing with it. It is like doing a backup to /dev/null. This will allow you to measure how fast Informix/Onbar can get the data to the Storage Manager with out any storage manager overhead.

Disk Reader

This utility will measure how fast the OS can actually get data from the disks/chunks.

Disk Writer

This utility will measure how fast the OS can actually write to the disks/chunks

XBSA Writer

This utility will measure how fast the storage manager get reveive data from onbar.

XBSA Reader

This utility we measure how fast the storage manager can send data to onbar.