Compaq 1850R - ProLiant - 128 MB RAM Kurzanleitung

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August 1998

ECG1080898

Prepared by Internet Solutions

Business Unit

Compaq Computer Corporation

Contents

Compaq ProLiant 1850R ............ 3

Key Features............................. 3

APPENDIX A: TEST

DISCLOSURE............................... 7

Performance Data

Disclosure.................................. 8

Descriptive Terms ..................... 9

APPENDIX B: RELATED

DOCUMENTS............................. 11

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Abstract: In a demonstration of Microsoft Exchange Server 5.5

scalability, the ProLiant 1850R with dual Intel Pentium®II 400MHz

processors was tested with user loads of 8000 simultaneous MAPI e-

mail users. The new ProLiant 1850R has been designed for all

businesses that require a high performance, space-efficient rack-

mount solution.

Compaq enables a confident deployment and management of

Microsoft Exchange Server on their products by conducting

extensive integration engineering and capacity planning at Compaq’s

Microsoft Competency Center located in Redmond, Washington.

Microsoft Exchange Server has been the focal point for extensive

development and testing by both Microsoft and Compaq. Throughout

this activity, Compaq and Microsoft have worked to optimize

Microsoft Exchange Server performance on Compaq server products

to provide an optimal balance between performance, availability,

manageability, and cost. Compaq also provides the experience

necessary for the successful deployments of messaging and

collaborative applications.

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ECG1080898

Notice

The information in this publication is subject to change without notice and is provided “AS IS” WITHOUT

WARRANTY OF ANY KIND. THE ENTIRE RISK ARISING OUT OF THE USE OF THIS

INFORMATION REMAINS WITH RECIPIENT. IN NO EVENT SHALL COMPAQ BE LIABLE FOR

ANY DIRECT, CONSEQUENTIAL, INCIDENTAL, SPECIAL, PUNITIVE OR OTHER DAMAGES

WHATSOEVER (INCLUDING WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS

PROFITS, BUSINESS INTERRUPTION OR LOSS OF BUSINESS INFORMATION), EVEN IF

COMPAQ HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

The limited warranties for Compaq products are exclusively set forth in the documentation accompanying

such products. Nothing herein should be construed as constituting a further or additional warranty.

This publication does not constitute an endorsement of the product or products that were tested. The

configuration or configurations tested or described may or may not be the only available solution. This test

is not a determination or product quality or correctness, nor does it enable compliance with any federal

state or local requirements.

Product names mentioned herein may be trademarks and/or registered trademarks of their respective

companies.

Compaq, Contura, Deskpro, Fastart, Compaq Insight Manager, LTE, PageMarq, Systempro, Systempro/LT,

ProLiant, TwinTray, ROMPaq, LicensePaq, QVision, SLT, ProLinea, SmartStart, NetFlex, DirectPlus,

QuickFind, RemotePaq, BackPaq, TechPaq, SpeedPaq, QuickBack, PaqFax, Presario, SilentCool,

CompaqCare (design), Aero, SmartStation, MiniStation, and PaqRap, registered United States Patent and

Trademark Office.

Netelligent, Armada, Cruiser, Concerto, QuickChoice, ProSignia, Systempro/XL, Net1, LTE Elite,

Vocalyst, PageMate, SoftPaq, FirstPaq, SolutionPaq, EasyPoint, EZ Help, MaxLight, MultiLock,

QuickBlank, QuickLock, UltraView, Innovate logo, Wonder Tools logo in black/white and color, and

Compaq PC Card Solution logo are trademarks and/or service marks of Compaq Computer Corporation.

Microsoft, Windows, Windows NT, Windows NT Server and Workstation, Microsoft SQL Server for

Windows NT are trademarks and/or registered trademarks of Microsoft Corporation.

NetWare and Novell are registered trademarks and intraNetWare, NDS, and Novell Directory Services are

trademarks of Novell, Inc.

Pentium is a registered trademark of Intel Corporation.

Microsoft Exchange Server 5.5 on the Compaq ProLiant 1850R

Performance Brief prepared by Internet Solutions Business Unit

First Edition (August 1998)

Document Number ECG1080898

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Compaq ProLiant 1850R

The new ProLiant 1850R features up to two 400MHz Intel Pentium®II processors with 512KB

L2 cache, 100MHz GTL Bus and the latest technology in network and disk controllers. This

server has been designed for all businesses requiring an affordable space-efficient rack-mount

solution for communications, Internet/intranet, gateway, or file and print applications.

Key Features

•Intel Pentium®II processor 400 MHz (dual processor capability)

•512-KB second level ECC cache standard

•100 MHz GTL Bus Design

•64-MB 100 MHz registered ECC SDRAM memory standard, expandable to 1 GB

•Three PCI and one shared PCI/ISA slots (four total slots)

•Compaq Netelligent 10/100 TX PCI UTP Controller (embedded) on the PCI local bus

•Integrated Dual Channel Wide-Ultra SCSI-3 Controller

•Supports three 1 inch Hot-Plug Drives or two 1.6-inch Hot-Plug Drives and Four Removable

Media Bays (two open)

•I2O Ready

•Server ‘98 Certified and ACPI compliant

•Preinstalled CD-ROM Drive 24x IDE

•Compaq Insight Manager, SmartStart, Integrated Remote Console (IRC) and Automatic

Server Recovery-2 (ASR-2)

•Protected by Compaq Services, including a three-year on-site limited warranty and extended

Pre-Failure Warranty which covers Intel Pentium II processors, memory and disk drives.

Performance Results

The benchmark was conducted using Microsoft’s Load Simulator tool. For each test, the Load

Simulator Medium MAPI canonical profile was chosen. The Medium MAPI profile reflects the

task workload of a typical corporate e-mail user, including common daily mail tasks such as send,

browse, read, and forward, as well as calendaring tasks and distribution list usage. The Response

Time score represents a 95th-percentile score of the measured test run. The score is expressed in

milliseconds (ms). A Response Time score of 1000 ms or less is considered an acceptable

response time for e-mail users utilizing Exchange Server’s MAPI protocol. The ProLiant 1850R

Response Time score of 227 ms is well below the 1000 ms acceptable threshold for e-mail users

utilizing Exchange Server’s MAPI protocol. Microsoft has certified these benchmark results

based on the Microsoft Exchange Server 5.5 UPS (Users Per Server) Policy Guidelines V1.0.

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Table 1. Performance Highlights (ProLiant 1850R, 6/400, 2 CPU, 1024 MB RAM)

User Load 8,000

Response Time (milliseconds) 227

Messages Submitted (8-hour period) 113,402

Messages Delivered (8-hour period) 144,141

Messages Recipients Delivered (8-hour period) 628,433

Messages Sent (8-hour period) 30,740

Note: Test results based on Microsoft Exchange Server 5.5 UPS Policy Guidelines V1.0. The test results disclosure

can be found in Appendix A.

Table 2. Compaq ProLiant 1850R Tested configuration

(2) Intel Pentium II 400-MHz – 512K Level-2 writeback cache per processor

1024 MB RAM

(2) SMART-2/DH Array Controller

OS/ Pagefile/ Exchange DS/MTA Files/ Exchange Log Files: (2) 9.1-GB Drives – RAID1

Exchange Information Store Files: (8) 9.1-GB Drives – RAID0

Compaq Netelligent 10/100 TX Embedded UTP NIC

Microsoft Windows Enterprise Server NT 4.0 with Service Pack 3

Microsoft Exchange Server v5.5 – Enterprise Edition (Tuning: Perfwiz defaults)

Note: RAID0 does not provide fault tolerance. Compaq does not recommend this configuration

for production Exchange servers. For deployment specific information, contact a Compaq or

Microsoft representative. More information can be found at:

http://www.microsoft.com/exchange/support/deployment/planning/deploy.asp?A=5&B=1

What the Benchmarks Don’t Tell You

It is important to understand that benchmarks such as these are designed to give Microsoft

Exchange Server implementation planners baseline references for understanding the capabilities

of hardware platforms from a single vendor such as Compaq or other competing hardware

vendors. When interpreting these benchmarks, however, two things should be kept in mind.

First, consider whether benchmarks are performed on what can be referred to as customer-

deployable configurations. A hardware vendor may publish a result that is based on a platform or

configuration that should not be deployed in a real-world Exchange Server deployment. For

example, many vendors have published results using disk subsystems configured with RAID0

disk arrays. While RAID0 does provide the highest levels of disk subsystem performance, it fails

to provide any protection against data loss. In addition, most vendors, including Compaq,

conduct benchmarks for Microsoft Exchange Server that are single-server in nature. In the real-

world of messaging, customer sites are usually multi-server and multi-site. Single-server, single-

site lab benchmarks do not account for the communication demands from other servers on the

network.

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Second, keep in mind that benchmarks do not account for issues such as backup and disaster

recovery or information store maintenance sizing. Whatever the issue, care must be taken when

interpreting benchmarks to ensure that they represent useful information for your Exchange

Server deployment and are based on valid simulation methodologies.

While it is significant that the ProLiant 1850R server can successfully scale to 8,000 medium

MAPI e-mail users in a single site and single server benchmark exercise, Compaq does not

recommend deploying 8,000 users on this configuration. Compaq recommends careful

evaluation of all issues involved in real-world Exchange Server deployments such as

management, administration, and disaster recovery.

Load Simulator

The main tool used in generating the workload for this scalability demonstration was the

Microsoft Exchange Server Load Simulation utility called Load Simulator. Load Simulator is a

tool for simulating a client user load on an Exchange Server. Its purpose is to enable a single

Windows NT machine called a LoadSim client to simulate multiple Microsoft Exchange client

users.

The operation of Load Simulator users is governed by a Load Simulator profile. This profile

controls factors such as how long a Load Simulator "day" is, how many e-mail messages to send

in a day’s time, how many times to open and read e-mail, whether to use distribution lists,

whether to use public folders, etc.

Load Simulator creates a highly accurate simulation of reality. It mimics the full Microsoft

Exchange Client in many respects. First, it uses .MSG files, the same format used by the

Exchange Client. This guarantees that messages generated by Load Simulator have the same

properties as those sent by real users of the Exchange Client. Second, Load Simulator uses the

same MAPI remote procedure call (RPC) semantics as those used by the Client. Third, Load

Simulator registers MAPI change notifications in the same manner as they are registered by the

Client. Finally, Load Simulator even emulates the Microsoft Exchange Client list box cache,

which the Client uses for folder and message panes in the viewer when a user browses and selects

messages on the server.

Several steps are necessary to perform a successful simulation. The Load Simulator setup and

initialization process comes first. Load Simulator creates the test topology by generating the user

directory entries. Next, the test store is initialized and populated with the test messages and

folder items. The tests are typically run for up to 8 hours depending upon the user load simulated

and amount of time required in reaching a steady state for measurement purposes. During a test

run, users log on to the Exchange Server and begin processing various messaging tasks. Task

response time data is logged to the LSPERF.LOG file and client messages and error logging is

stored in the LOADSIM.OUT file. To produce test scores, the LSLOG utility is used to parse the

LSPERF.LOG file and calculate the response time score. By default, 95th- and 50th-percentile

response time scores are calculated. Ninety-fifth-percentile response time scores for the

MAPI/RPC protocol should be less than 1,000 ms, according to Microsoft. Also, the Exchange

Server IS Send Queue and the MTA Work Queue (other message and delivery queues should also

be considered, depending on the protocol) must consistently return to near zero during the steady-

state period for which test measurements are taken. Queues that continue to grow and fail to

return to near zero indicate that the server is not sustaining the required workload. There should

be no errors logged by the LoadSim clients during the test. When these conditions are met, a

successful test run has been completed. For more information on LoadSim Medium canonical

profiles, please refer to the LoadSim documentation at:

http://www.microsoft.com/exchange/library/loadsim55x86.exe.

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Balancing Scalability and Availability

While server performance and capacity are key criteria in selecting a messaging deployment

platform, one must also consider price and performance. Several competing hardware vendors

offer platforms capable of supporting heavy user loads. They also provide these systems at a

price significantly higher than Compaq's price. Compaq delivers leading performance on

industry-standard platforms with the lowest total cost of ownership.

For many corporations, messaging and collaboration have recently become mission critical.

Unscheduled downtime for any server can result in a significant loss of productivity. To limit

exposure to downtime, Microsoft Exchange Server 5.5 and Compaq ProLiant Clusters provide

high availability through Microsoft Cluster Server (MSCS). When MSCS is deployed on

Compaq ProLiant Clusters, enterprise-messaging customers can achieve scalability without

sacrificing the reliability that is required in an enterprise environment.

Another critical concern is backup and disaster recovery. Compaq provides industry-leading tape

array and library hardware solutions integrated with applications such as Computer Associates’

Cheyenne ArcServe. These solutions will help meet the requirements of enterprise customers

deploying messaging and collaboration applications.

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ECG1080898

APPENDIX A: TEST DISCLOSURE

Table 3. LoadSim Clients and Configuration

LoadSim Clients Configuration

Network type (10Base T, Token Ring, etc.) 100 Base-TX

Number and type of clients (≤40) 2x5/133, 128 MB RAM (≤250 users each) or

better (indicates minimum configuration)

Number and type of hubs/concentrators (full duplex,

switching, etc.) Compaq Netelligent 5708 Switch and Netelligent 2624

Hub

Number of clients/segment 20

Client CPU type and speed in percentages 2P/133-MHz Pentium processors or better

Client network controller broken down by

percentages Compaq Netelligent 10/100

Client network software name and version (drivers,

protocols, redirector) Microsoft Windows NT Workstation 4.0 with SP3

TCP/IP

Size of any client network cache None

Network controller software Compaq Netelligent 10/100 driver

LoadSim version 5.5 (Build 2187)

Note: Response time measurements were taken from a LoadSim Control Client simulating 100

users configured with 96 MB RAM and a Pentium/166 CPU. The client is located on an isolated

network segment connected to a 100-Mb/s switch.

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Performance Data Disclosure

8,000 Users (Measured during test run at steady state)

Table 4. Summary

Supported Benchmark Load 8,000 Users

Weighted 95th Percentile Score 227 milliseconds

Benchmark Profile LoadSim Medium User

Protocol Exchange MAPI

Length of Steady State 4 hours

Length of Test 8 hours

Table 5. Transaction Load (hourly)

Messages Submitted 14,175.372

Messages Recipients Delivered 78,554.132

Messages Sent 3,842.479

Table 6. Transaction Load (per second)

Message Opens/Sec 28.509

Folder Opens/Sec 7.365

RPC Read Bytes/Sec 25,035

RPC Write Bytes/Sec 165,958

Table 7. Transaction Queues

IS Send Queue Average Length 2.768

MTA Work Queue Average Length 0.717

Table 8. Processor Utilization

System Processor Utilization (%) 70.11

System Processor Queue Length 2.808

System Context Switches/Sec 2,345

Process % CPU Time – Store 110.51

Process % CPU Time – DS 9.83

Process % CPU Time – MTA 6.93

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Table 9. Memory Utilization

Available Bytes 4.91 MB

Pages/Sec 0.026

Process Working Set Bytes – Store 966MB

Process Virtual Bytes – Store 1.40 GB

Logical Drive Utilization

IS Database Disk Reads/Sec 210.787

IS Database Disk Writes/Sec 119.756

IS Database Average Disk Queue Length 4.711

IS Log Disk Reads/Sec 0.009

IS Log Disk Writes/Sec 88.815

IS Log Average Disk Queue Length 0.037

Descriptive Terms

Messages Submitted

Submit calls made by clients. This equates to total message sends by users.

Messages Sent

Messages that the Store sends to the MTA (not messages sent by clients). Normally all messages

submitted by the clients are sent to the MTA, except in the case where all recipients are local

mailboxes. In that case, since all the deliveries can be performed locally, no message is sent to the

MTA.

Message Recipients Delivered

Separate mailboxes that messages have been delivered to. Think of this as the number of Reads

that are ‘caused’ by sending a message (one per recipient).

Message Opens/Sec

Messages accessed for reading per second

Folder Opens/Sec

Folders opened for browsing per second

RPC Read Bytes/Sec

RPC Bytes read from clients (i.e., submit calls)

RPC Write Bytes/Sec

RPC Bytes written to clients (i.e., message opens)

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ECG1080898

IS Send Queue Average Length

Send Queue Size is the number of messages in the private information store's send queue.

MTA Work Queue Average Length

Work Queue Length is the number of outstanding messages in the Work Queue, which indicates

the number of messages not yet processed to completion by the MTA.

Note: Performance results were measured using Microsoft NT Performance Monitor.

Measurements were obtained by measuring averages for the period of steady-state activity (i.e.,

after 8,000 users were successfully logged on). Tests measure the messaging throughput of a

single-server, single-site topology. For deployment-specific information, contact a Microsoft or

Compaq representative. More information can be found at:

http://www.microsoft.com/exchange/support/deployment/planning/deploy.asp?A=5&B=1

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