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Checking the Windows NT Technical Environment of an R/3 SystemChecking the Windows NT Technical Environment of an R/3 SystemOverviewOverview

1996 SAP Technology, Inc. 971

Chapter 97:Chapter 97: Checking the Windows NT Technical Environment of an R/3Checking the Windows NT Technical Environment of an R/3SystemSystem

ContentsContentsOverviewOverview................................................................................................................................................................................................................................................................................................................................................................971971

Checking the Windows NT Version, Service Pack, Processor, Main Memory Size, and Processor TypeChecking the Windows NT Version, Service Pack, Processor, Main Memory Size, and Processor Type................................................................................971971

Checking the Host NameChecking the Host Name..................................................................................................................................................................................................................................................................................................................972972

Checking the Number of Processors in the Server Checking the Number of Processors in the Server..........................................................................................................................................................................................................................................976976

Checking the Hard Drive ConfigurationChecking the Hard Drive Configuration..................................................................................................................................................................................................................................................................... .....977977

Checking the Paging File SizeChecking the Paging File Size..................................................................................................................................................................................................................................................................................................978978

Checking the Windows NT CD-ROM DriveChecking the Windows NT CD-ROM Drive................................................................................................................................................................................................................................................................979979

Checking the Magnetic Tape DeviceChecking the Magnetic Tape Device..................................................................................................................................................................................................................................................................................979979

Checking the Registry of an Installed R/3 System With an Oracle DBChecking the Registry of an Installed R/3 System With an Oracle DB..............................................................................................................................................................................97109710Defining the Environment Parameters for SAP Remote ConnectionDefining the Environment Parameters for SAP Remote Connection....................................................................................................................................................................................97129712

Changing the SAP Administrators PasswordChanging the SAP Administrators Password....................................................................................................................................................................................................................................................97169716

OverviewOverview

In order to ensure that the R/3 System runs correctly and optimally, it is necessary to check the technicalenvironment of the operating system, database, and the R/3 System itself. This chapter describes how tocheck the Windows NT technical environment .

Checking the Windows NT Version, Service Pack, Processor, Main Memory Size, andChecking the Windows NT Version, Service Pack, Processor, Main Memory Size, andProcessor TypeProcessor Type

1. To view the Windows NT version,Service Packnumber, the size of themain memory, and the type ofprocessor of the R/3 server, in theProgram Manager , follow the menupath Help About Program Manager...

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Checking the Windows NT Technical Environment of an R/3 SystemChecking the Windows NT Technical Environment of an R/3 SystemChecking the Host NameChecking the Host Name

972 1996 SAP Technology, Inc.

In this example, the followinginformation is displayed:

2. Windows NT 3.51, Service Pack 4.

3. 261,556 KB(261,556/1024 MB =

approximately 256 MB).4. x86 Family 5(a Pentium processor).

5. Click OK .

Checking the Host NameChecking the Host Name

The host name must be unique and the same name must be used throughout the system. Follow the stepsbelow to view the host name and IP address of an installed R/3 NT Server:

1. In the Control Panel group, double-click on the Network icon.

2. In the Installed Network Softwarebox, select TCP/IP protocol.

3. Click Configure ...

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4. Record the IP Address found in theEnable Automatic DHCPConfiguration field (in this example:147.204.176.136).

5. Click DNS ...

6. Record the hostname found in theHost Name field (in this example: pnsfo36).

The hostname should be eightcharacters or less in length and typed

in lowercase.7. Click OK three times to exit the

Networkcontrol panel.

8. To check the HOSTS file, start byopening the File Manager from the Main program group.

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9. Select the directory path WINNT35 SYSTEM32 DRIVERS ETC.

10. Select the HOSTS file.

11. Follow the menu path File Run .

12. Enter sappad before the HOSTSfilename.

13. Click OK.

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14. Click on the Maximizearrow.

15. Scroll down to view the entries.

16. Ensure the TCP/IP address andhostname match those found in theNetwork Control Panelabove.

The entry 127.0.0.1 localhost is added by Windows NT automatically duringinstallation and must NOT be deleted. The R/3 system will run significantly slower if thisentry is deleted.

It is recommended to add an alias of the hostname by typing the host name in upper case(for example, PNSFO36).

It is advisable to have an additional comment line after the last item in the HOSTS file. If itis not already there, enter the additional comment (for example, # --Do not deletethis line--) .

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Checking the Windows NT Technical Environment of an R/3 SystemChecking the Windows NT Technical Environment of an R/3 SystemChecking the Number of Processors in the Server Checking the Number of Processors in the Server


17. Follow the menu path File Exit.

Checking the Number of Processors in the Server Checking the Number of Processors in the Server

1. In the Administrative Tools programgroup, double-click on the WindowsNT Diagnostics icon .

2. Click Hardware...

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Checking the Windows NT Technical Environment of an R/3 SystemChecking the Windows NT Technical Environment of an R/3 SystemChecking the Hard Drive ConfigurationChecking the Hard Drive Configuration


3. The last item of the list shows thatthis NT Server has 2 processors.

4. Click OK to exit.

Checking the Hard Drive ConfigurationChecking the Hard Drive Configuration1. In the Administrative Toolsprogram

group, double-click on the Disk Administrator .

2. The Windows NT Server in thisexample has the following harddrive configuration:

Disk 0 has approximately 2 GBwith 3 partitions: EISA Utilities = 7 MB Drive C: is a 1751 MB, NTFS

partition used for the WindowsNT Operating System.

Drive E: is a 249 MB, NTFSpartition used for the Oracleonline redo log.

Disk 1 has approximately 2 GBwith one partition: Drive F: is a 2006 MB, NTFS partition used for the Oracle off-line redo log, R/3 executables and

other SAP directories. Disk 2 has approximately 12 GB with one partition:

Drive G: is a 12036 MB, NTFS partition used for Oracle and other data.

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Checking the Windows NT Technical Environment of an R/3 SystemChecking the Windows NT Technical Environment of an R/3 SystemChecking the Paging File SizeChecking the Paging File Size


Checking the Paging File SizeChecking the Paging File Size

1. In the Control Panel group, double-click on the System icon.

2. Click on the Virtual Memory...button.

For R/3 version 3.0E , the minimumpaging file size should be threetimes the physical RAM (forexample, 3 x 256 MB = 768 MB) or1.25 GB (1,280 MB) whichever isgreater. Before adjusting the virtualmemory, ensure that you haveenough space on the target drive.Otherwise, you might considerdistributing the paging file overother drives which do not havehigh I/O activity. (Oracle Redo Log

and Data files may have high I/Oactivity.)

3. Based on the above calculation, setthe Initial Size of the paging file (forexample, 1280 MB).

4. Set the Maximum Sizeequal to the Minimum Size (for example, 1280

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Checking the Windows NT Technical Environment of an R/3 SystemChecking the Windows NT Technical Environment of an R/3 SystemChecking the Windows NT CD-ROM DriveChecking the Windows NT CD-ROM Drive


MB).

5. Click Set.

6. Click OK .

Checking the Windows NT CD-ROM DriveChecking the Windows NT CD-ROM Drive1. From the Main program group,

open the File Manager.

2. In order to ensure that the CD-ROM drive is working, place a CDin the drive and click on the CDdrive (drive d) icon.

3. Check to see that the CDs files arelisted.

Checking the Magnetic Tape DeviceChecking the Magnetic Tape Device

1. In the Administrative Tool programgroup, double-click on the Backupicon.

Ensure that your backup drive isattached to the NT server andturned on. Insert a tape into thedrive. Open the Drives and Tapeswindows if necessary.

2. In the Drives window, the NTbackup utility should list thecurrent active drives.

3. In the Tapes window, headerinformation from the inserted tapeshould be displayed.

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Checking the Windows NT Technical Environment of an R/3 SystemChecking the Windows NT Technical Environment of an R/3 SystemChecking the Registry of an Installed R/3 System With an Oracle DBChecking the Registry of an Installed R/3 System With an Oracle DB


Checking the Registry of an Installed R/3 System With an Oracle DBChecking the Registry of an Installed R/3 System With an Oracle DB

1. From the Main program group,start the MS-DOS CommandPrompt.

2. Enter regedt32 at the prompt.

There are four different registries.HKEY_LOCAL_MACHINE andHKEY_CURRENT_USER containR/3 and Database related registry

values.3. Follow the path Register Editor

Window HKEY_LOCAL_MACHINE on Local Machine to open this window.

4. The directory

HKEY_LOCAL_MACHINE

SOFTWARE ORACLEcontainsOracle-specific parameters.

5. The directoryHKEY_LOCAL_MACHINESOFTWARE SAP contains SAP-specific parameters.

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Checking the Windows NT Technical Environment of an R/3 SystemChecking the Windows NT Technical Environment of an R/3 SystemChecking the Registry of an Installed R/3 System With an Oracle DBChecking the Registry of an Installed R/3 System With an Oracle DB


6. The directoryHKEY_LOCAL_MACHINESYSTEM CurrentControlSet Services contains the database andR/3 services.

NT Services are similar to UNIXdaemons.

7. The Services directory (at the end ofthe path above) contains the Oracleservices OracleService,

OracleTCPListener , andOracleTNSListener .

8. In the same directory are the R/3related servicesSAP_, andSAPOsCol.

Follow the menu path Register Editor WindowHKEY_CURRENT_USERto openthis window.

9. The directoryHKEY_CURRENT_USERSOFTWARE SAP R3INST contains the R3INST parameters.

R3INST is the R/3 installer utility.

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Checking the Windows NT Technical Environment of an R/3 SystemChecking the Windows NT Technical Environment of an R/3 SystemDefining the Environment Parameters for SAP Remote ConnectionDefining the Environment Parameters for SAP Remote Connection


Defining the Environment Parameters for SAP Remote ConnectionDefining the Environment Parameters for SAP Remote Connection

In the Registry Editor , follow themenu path Window HKEY_LOCAL_MACHINE on Local

Machine to re-open this window.1. Select the directory path

HKEY _ LOCAL _ MACHINE SOFTWARE SAP ENVIRONMENT .

2. Follow the menu path Edit AddValue.

3. In the Value Name field, entersapserv4 .

Sapserv4 and sapserv3are SAPremote hosts

4. Click OK .

5. Enter the TCP/IP address204.79.199.2 in the String Editor .

6. Click OK . 204.79.199.2 is the TCP/IP address

of sapserv4. 147.204.64.1 is theTCP/IP address of sapserv3.

7. Notice that new entry, sapserv4, hasbeen added to the list.

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8. To leave the Registry Editor , followthe menu path Registry Exit.

You must reboot the NT Server inorder to activate the new or modifiedregistry! But before you reboot theserver, you must first shutdown theR/3 System and database (see Startingand Stopping the R/3 System).

9. To reboot the NT Server, in theProgram Manager , follow the menupath File Shutdown.

10. Select the Shutdown and Restartoption.

11. Click OK .

12. After the system has re-booted,from the Main program group,open the File Manager.

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To test the remote connection, wewill copy the file EXEC.EXE to :\WINNT35\SYSTEM32 asfollows:

13. Select the directory path\usr\sap\\SYS\exe\run .

14. Select the EXEC.EXE file.

15. Follow the menu path File Copy...

16. In the To field, enter the destinationpath :\WINNT35\SYSTEM32\*.* .

17. Click OK .

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18. In the File Manager , select thedirectory pathWINNT35\SYSTEM32\DRIVERS\ETC .

19. Select the HOSTS file.

20. Follow the path File Run...

21. Enter notepad before the HOSTSfilename.

22. Click OK .

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Checking the Windows NT Technical Environment of an R/3 SystemChecking the Windows NT Technical Environment of an R/3 SystemChanging the SAP Administrators PasswordChanging the SAP Administrators Password


23. Ensure that the TCP/IP addressesof sapserv4 and sapserv3are listed inthe HOSTS file.

You can ping the SAP servers toverify your connection as follows:

24. From the Main program group,start the MS-DOS CommandPrompt.

25. Enter ping sapserv4 . A replyshould be received from204.79.199.2.

26. Enter ping sapserv3 . A replyshould be received from147.204.64.1.

27. Enter exit to leave the CommandPrompt.

Changing the SAP Administrators PasswordChanging the SAP Administrators Password

1. In the Administrative Tools group,double-click on the User Manager for Domains icon.

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2. In the Username column, select thename ADM (forexample, DEVADM ).

3. Follow the menu path User Properties...

4. Enter the new password in thePassword field and then again in theConfirm Passwordfield.

5. Click OK .

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97 18 1996 SAP Technology Inc

F o r f u r t h e r d e t a il s r e f e r t o

R/3 System Administration Made Easy

Checking the Oracle Technical Environment of an R/3 System (Ch.98)

Checking the R/3 Technical Environment of an R/3 System (Ch. 99)Basis Courses

Technical Core CompetenceWindows NT/Oracle (BC 310)

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