Intel 7xx Servers User Manual

15.10 Number of Processors Affect Performance

With the Large Database File workload, it is possible to fully feed two backup devices with a single
processor, but with the User Mix workload it takes 1+ processors to fully feed a backup device. A
recommendation might be 1 and 1/3 processors for each backup device you want to feed with User Mix
data.

IBM i 6.1 Performance Capabilities Reference - January/April/October 2008

Chapter 15. Save/Restore Performance

253

100

150

200

GB/HR

Save Restore

Operation

.1 Processor to 2 Processors Backup Operations

(User Mix Workload) to Ultrium 3 Tape

520 2 way 16GB Memory 60 Dasd

.1 Processor

.2 Processor

.3 Processor

.5 Processor

1.0 Processor

2.0 Processors

420

430

440

450

460

470

480

490

500