Parallel Virtual Tapes - IBM 170 Servers Manual

15.13 Parallel Virtual Tapes

NOTE: Virtual tape is reading and writing to the same DASD so the maximum throughput with our
concurrent and parallel measurements is different than our tape drive tests where we were reading from
DASD and writing to tape.
3500
3000
2500
2000
GB/HR
1500
1000
500
0
300
250
200
150
GB/HR
100
50
0
IBM i 6.1 Performance Capabilities Reference - January/April/October 2008
©
Copyright IBM Corp. 2008
Parallel Virtual Tape for Large File
570 16 way 128GB M emory
800 DASD units for Virtual Tape Drives
Save
Operation
Parallel Virtual Tape for User Mix
570 16 way 128GB Memory
800 DASD units for Virtual Tape Drives
Save
Operation
Chapter 15. Save/Restore Performance
Restore
1 Virtual Tape Device
2 Virtual Tape Devices
3 Virtual Tape Devices
4 Virtual Tape Devices
5 Virtual Tape Devices
Restore
1 Virtual Tape Device
2 Virtual Tape Devices
3 Virtual Tape Devices
4 Virtual Tape Devices
5 Virtual Tape Devices
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