Compaq 307560-001 Disk Subsystem Performance and Scalability - Page 22

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ECG025.0997 WHITE PAPER (cont.) ... Like Capacity Scaling (RAID 5 - 1 Controller) 14,000,000 12,000,000 10,000,000 7+1 x 2GB 3+1 x 4GB Server Throughput (Bytes/sec) 8,000,000 6,000,000 54% 4,000,000 2,000,000 0 4 8 16 20 24 28 32 36 40 44 48 52 56 57 Number of Clients Figure 11: Like Capacity Scaling in a RAID 5 Environment. The performance increase when using six 4GB drives and two 12GB drives revealed a 28% gain as shown in Figure 12. Thus concluding, by using more drives in an environment, system performance increases. 22

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W
HITE
P
APER
(cont.)
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ECG025.0997
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Like Capacity Scaling (RAID 5 - 1 Controller)
0
2,000,000
4,000,000
6,000,000
8,000,000
10,000,000
12,000,000
14,000,000
4
8
16
20
24
28
32
36
40
44
48
52
56
57
Number of Clients
Server Throughput (Bytes/sec)
7+1 x 2GB
3+1 x 4GB
54%
Figure 11: Like Capacity Scaling in a RAID 5 Environment.
The performance increase when using six 4GB drives and two 12GB drives revealed a
28% gain as shown in Figure 12.
Thus concluding, by using more drives in an
environment, system performance increases.