C.13 As/400E Model Sxx Servers; As/400E Custom Servers; C.15 As/400 Advanced Servers - IBM 170 Servers Manual

C.13 AS/400e Model Sxx Servers

For AS/400e servers the knee of the curve is about 1/3 the maximum interactive CPW value.
Table C.13.1 AS/400e Servers
Model Feature #
2118
S10
2119
2161
2163
S20
2165
2166
2257
2258
S30
2259
2260
2207
2208
S40
2256
2261
C.14 AS/400e Custom Servers
For custom servers the knee of the curve is about 6/7 maximum interactive CPW value.
Table C.14.1 AS/400e Custom Servers
Model Feature #
2177
S20
2178
2320
2321
S30
2322
2340
S40
2341

C.15 AS/400 Advanced Servers

For AS/400 Advanced Servers the knee of the curve is about 1/3 the maximum interactive CPW value.
For releases prior to V4R1 the model 150 was constrained due to the memory capacity. With the larger
capacity for V4R1, memory is no longer the limiting resource. In V4R1, the limit of 4 DASD devices is
the constraining resource. For workloads that do not perform as many disk operations or don't require as
much memory, the unconstrained CPW value may be more representative of the performance capabilities.
An unconstrained CPW rating means the processor is the first constrained resource.
IBM i 6.1 Performance Capabilities Reference - January/April/October 2008
©
Copyright IBM Corp. 2008
Max
CPUs
C/S CPW
1
45.4
1 73.1
1
113.8
1 210
2
464.3
4 759
1
319
2 583.3
4
998.6
8 1794
8
3660
12 4550
8 1794
12 2340
CPUs Max
4
759
4 759
4 998.6
8 1794
8 1794
8
3660
12 4550
Appendix C CPW, CIW and MCU for System i Platform
1/3 Max
Max
Inter CPW Interact CPW
5.4
16.2
24.4 8.1
10.3
31
35.8 11.9
16.7
49.7
56.9 19.0
17.2
51.5
64 21.3
21.3
64
64 21.3
40
120
120 40
64 21.3
64 21.3
6/7 Max
Max
94.9
110.7
221.4 189.8
215.1 184.4
386.4 331.2
579.6 496.8
900.0
1050.0
2050.0 1757.1
CPU % @ Max CPU %
Interact @ the Knee
35.7 11.9
33.4 11.1
27.2 9.1
17 5.7
10.7 3.6
7.5 2.5
16.1 5.4
11 3.7
6.4 2.1
3.6 1.2
3.2 1.1
2.6 0.8
3.6 1.2
2.7 0.9
CPU % @ CPU %
14.6 12.5
29.2 25.0
21.5 18.5
21.5 18.5
32.5 27.7
28.6 24.5
38.6 33.1
364