Compaq 108164-003 - ProLiant - 800 White Paper page 4

ECG025.0997
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HITE APER
(cont.)
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. . Environment
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Server Software Configuration
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Service Pack
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Compaq Support Software Diskette
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Client Configuration
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NetBench 5.0 Test Configuration
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. . Work Space
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Ramp Up Time
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Ramp Down Time
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Test Duration
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Delay Time
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Think Time
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I S K E L AT E D
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Before beginning our discussion on disk subsystem performance, Table 2 lists the general
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terms used in the industry to describe the performance characteristics of disk
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performance. These general terms describe characteristics that can impact system
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performance, so it is important to understand the meaning of each term and how it could
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affect your system.
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Terms
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Seek Time
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Average Seek Time
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4
Table 1: (cont.)
Disk Subsystem Testing Environment
Equipment Used
Microsoft Windows NT Server version 4.0
2
1.20A
Compaq Deskpro 575
Netelligent 10/100 TX PCI UTP Controller
and MS-DOS
Disk Mix
15 MB
10 seconds
10 seconds
120 seconds
0 seconds
0 seconds
P C
E R F O R M AN C E
Table 2:
Disk Performance Measurement Terms
Description
The time it takes for the disk head to move across the disk to find a
particular track on a disk.
The average length of time required for the disk head to move to the
track that holds the data you want. This average length of time will
generally be the time it takes to seek half way across the disk.
H AR AC T E R I S T I C S