Intel AS/400 RISC Server User Manual
Page 195
14.1.4 571B, 5709, 573D, 5703, 2780 IOA Comparison Chart
In the following two charts we are modeling a System i 520 with a 573D IOA using RAID5,
comparing 3 70GB 15K RPM DASD to 4 70GB 15K RPM DASD. The 520 is capable of
holding up to 8 DASD but many of our smaller customers do not need the storage. The charts
try to point out that there may be performance considerations even when the space isn’t needed.
14.1.4.1
14.1.4.2
IBM i 6.1 Performance Capabilities Reference - January/April/October 2008
©
Copyright IBM Corp. 2008
Chapter 14 DASD Performance
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0
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200
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573D 3 RAID5 DASD
573D 4 RAID5 DASD
Workload Throughput
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0
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573D 3 RAID5 DASD
573D 4 RAID5 DASD
Ops/Sec
D
A
S
D
R
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ons
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