Compaq ProLiant 1000 I/O Performance Tuning of Compaq Servers - Page 23

Appendix - Performance Tuning Data

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I/O Performance Tuning of Compaq Servers 23 Appendix - Performance Tuning Data In this section of the paper we provide some data to illustrate and reinforce the recommendations made previously in this paper. The following graphs were collected using ZD's ServerBench 4.02, ZD's NetBench 5.01, and Intel's Iometer, rev 1998.10.08. Tests were run on a variety of Compaq servers, including ProLiant 1850R, ProLiant 6500, and ProLiant 5000. The results shown here are not intended as competitive benchmarks; rather the information shown here is to show relative performance gains afforded by performance tuning. Fibre Channel Bus When considering Fibre Channel Storage Arrays, you should expect to see performance equivalent to a comparably populated SCSI bus over short distances. At the same time, FC affords expandability and flexibility not available in any SCSI storage system. Fibre Channel vs. SMART-2DH performance Below are several graphical performance comparisons between Fibre Channel Storage Array and a SMART-2DH SCSI Array Controller. According to the data, across all applications Fibre Channel delivers performance on par with local SCSI storage. Simulated Application: OLTP (2 KB, 67% Read, 33% Write, 0% Sequential, 100% Random) 1000 900 800 700 600 500 400 300 200 100 0 RAID 0 RAID 1 RAID 5 RAID 5 No Cache RAID Level Fibre Channel Array SMART-2DH Figure 7. Relative performance of SCSI and Fibre Channel storage for online transaction processing. These results were obtained using Iometer version 1998.10.08, Copyright 1998 by Intel Corporation. Intel does not endorse any Iometer results. ECG044.0399

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I/O Performance Tuning of Compaq Servers
23
ECG044.0399
Appendix - Performance Tuning Data
In this section of the paper we provide some data to illustrate and reinforce the recommendations
made previously in this paper. The following graphs were collected using ZD's ServerBench 4.02,
ZD's NetBench 5.01, and Intel's Iometer, rev 1998.10.08. Tests were run on a variety of Compaq
servers, including ProLiant 1850R, ProLiant 6500, and ProLiant 5000. The results shown here are
not intended as competitive benchmarks; rather the information shown here is to show relative
performance gains afforded by performance tuning.
Fibre Channel Bus
When considering Fibre Channel Storage Arrays, you should expect to see performance
equivalent to a comparably populated SCSI bus over short distances. At the same time, FC
affords expandability and flexibility not available in any SCSI storage system.
Fibre Channel vs. SMART-2DH performance
Below are several graphical performance comparisons between Fibre Channel Storage Array and
a SMART-2DH SCSI Array Controller. According to the data, across all applications Fibre
Channel delivers performance on par with local SCSI storage.
Simulated Application:
OLTP
(2 KB, 67% Read, 33% Write, 0% Sequential, 100% Random)
0
100
200
300
400
500
600
700
800
900
1000
RAID 0
RAID 1
RAID 5
RAID 5 No
Cache
RAID Level
Fibre Channel Array
SMART-2DH
Figure 7.
Relative performance of SCSI and Fibre Channel storage for online transaction
processing. These results were obtained using Iometer version 1998.10.08, Copyright 1998
by Intel
Corporation. Intel does not endorse any Iometer results.