Compaq ProLiant 1000 Performance of Microsoft Exchange Server 4.0 on Compaq Pr - Page 18

Effect of Number of Spindles

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444A/0696 WHITE PAPER (cont.) 1...8 • There is consistency in the relative performance of both the 1P and 2P data. • Four CPU data is omitted because it provides no additional benefit in this scenario. Disk Subsystem Effect of Number of Spindles The basic idea with a disk subsystem is to make disk I/O as fast as possible. One good way to do this is to have several spindles (disks) spinning at the same time connected to a Compaq SMART Array Controller. For related information see the Compaq white paper, 'SMART-2 Array Controller Technology' or the Compaq technote, 'Configuring Compaq RAID Controllers for Database Servers'. This concept applies to Microsoft Exchange Server. Table 8 describes the hardware used in this test. Figure 8 depicts the benefit of adding disks to the array set to increase response time. PENTIUM PRO/166 EXCHANGE SERVER HARDWARE CONFIGURATION Machine Class Compaq ProLiant 5000 Processor Subsystem 1 Pentium Pro/166, 512 Kbyte L2 cache System Memory 128 Mbytes Disk Subsystem Integrated Fast Wide SCSI-2 controller Pagefile and executables volum:e1x2GB Fast Wide SCSI-2 drive PCI SMART-2 Controller Log volume: 2x2GB Fast SCSI-2 drives on port 0, RAID 1 (Array Accelerator enabled) IS volume: 7x2GB Fast SCSI-2 drives on port 1, RAID 5 (Array Accelerator enabled) Network Interface Compaq NetFlex/3 PCI (10BaseT) Operating System Windows NT Server v3.51 + SP4 Table 8. Pentium Pro /166 Exchange Server hardware configuration

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W
HITE
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APER
(cont.)
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444A/0696
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•
There is consistency in the relative performance of both the 1P and 2P data.
•
Four CPU data is omitted because it provides no additional benefit in this scenario.
Disk Subsystem
Effect of Number of Spindles
The basic idea with a disk subsystem is to make disk I/O as fast as possible. One good way to do
this is to have several spindles (disks) spinning at the same time connected to a Compaq SMART
Array Controller.
For related information see the Compaq white paper, ‘SMART-2 Array Controller Technology’
or the Compaq technote, ‘Configuring Compaq RAID Controllers for Database Servers’.
This concept applies to Microsoft Exchange Server. Table 8 describes the hardware used in this
test. Figure 8 depicts the benefit of adding disks to the array set to increase response time.
P
ENTIUM
P
RO
/166 E
XCHANGE
S
ERVER HARDWARE CONFIGURATION
Machine Class
Compaq ProLiant 5000
Processor Subsystem
1 Pentium Pro/166, 512 Kbyte L2 cache
System Memory
128 Mbytes
Disk Subsystem
Integrated Fast Wide SCSI-2 controller
Pagefile and executables volume
: 1x2GB Fast Wide
SCSI-2 drive
PCI SMART-2 Controller
Log volume
: 2x2GB Fast SCSI-2 drives on port 0, RAID
1 (Array Accelerator enabled)
IS volume
: 7x2GB Fast SCSI-2 drives on port 1, RAID 5
(Array Accelerator enabled)
Network Interface
Compaq NetFlex/3 PCI (10BaseT)
Operating System
Windows NT Server v3.51 + SP4
Table 8. Pentium Pro /166 Exchange Server hardware configuration