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Sample Basis Questions 3 2008-08-22 08:29:22 1)The local memory of the work process consist of ( More than one answer can be correct)Roll bufferRoll areaPaging bufferPage area2)System messages can be sent using transactionSM04SM02SM12SM213)Which of the following are true about update WP?At least one V2 WP should be configured in a SAP system.If V1 WP are unavailable V2 WP can process V1 requests.If V2 WP are unavailable V1 WP will process th Read more:Basis
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Sample Basis Question 2 2008-08-22 08:28:47 1) In what sequence does the system read the system parameters the specified locations?a) Instance profile -> Default profile -> Kernelb) start.ini -> Kernel -> Default profile -> Instance profilec) Kernel -> Default profile -> Instance profiled) Kernel -> start.ini -> Default profile -> Instance profile2) Which are the possible Client Rolesa) Testb) Productionc) Demod) Integration3) Which o Read more:Basis
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Sample Basis Questions 1 2008-08-22 08:28:18 Here i am posting 10 sample basis questions 1. Which of the following are standard users in SAP systems? (More than one answers) a)sapb)ddicc)systemd)sap* 2. A background job contains one or more steps. A step can be (More than one answers)a) An ABAP Programb) An external Programc) A java programd) An external os command3. What are the status a background job can have? (More than one answ Read more:Basis
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Sample Basis Questions 1 Answers 2008-08-22 08:27:44 Here i am posting 10 sample basis questionsAnswers1. Which of the following are standard users in SAP systems? (More than one answers) a)sap b)ddicc)system d)sap* 2. A background job contains one or more steps. A step can be (More than one answers) a) An ABAP Program b) An external Programc) A java program d) An external os command 3. What are the status a background job can have? Read more:Basis
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Answers to sample questions2 2008-08-22 08:26:53 Answers1) In what sequence does the system read the system parameters the specified locations? a) Instance profile -> Default profile -> Kernel b) start.ini -> Kernel -> Default profile -> Instance profile c) Kernel -> Default profile -> Instance profile d) Kernel -> start.ini -> Default profile -> Instance profile2) Which are the possible Client Roles a) Test b) Production c) Demod) Read more:questions
Automatically logged off the frontend SAPGUI 2008-08-22 08:25:59 Automatically logged off the frontend SAPGUI You can set Parameter : rdisp/gui_auto_logout in transaction RZ11. If no entry is made for rdisp/gui_auto_logout (in seconds), the frontend is automatically logged off. If the parameter has the value 0, there will be no automatic logoff. To change the parameter value, First, display the parameter value with transaction RZ11. Once in the display screen, Read more:Automatically
Maximum No. Of SAP Session Per User 2008-08-22 08:25:37 Maximum No. Of SAP Session Per User You set this Parameter : rdisp/max_alt_modes in transaction RZ10. Add in the above parameter in the Instance Profile - Options Extended Maintenance. Restart the R/3 instance. The default maximum no. of sessions in 4.6x is set as 6 session per user. Most company will reduced the number of session per user but not increase it. Read more:Maximum
Disable SAP USERS to logon multiple times 2008-08-22 08:25:00 Disable SAP USERS to logon multiple times How to block a user id being logging in for more than twice? i.e. I must restrict the user to be logged in at a time not more than twice (Not sessions, Loggins only). Set the parameter in RZ10. login/multi_login_users = set to 1 to activate login/disable_multi_gui_login = you can put a list of users that should be allow to logon multiple ti Read more:Disable
Suppress Multi Login / Set Minimum Password Length 2008-08-22 08:24:22 Suppress MultiLogin
/ Set MinimumPasswordLength
Suppress SAP Multi Login Message You can suppress the multi login message by setting the parameter in the instance profile. It is necessary if your company allows a single users to have multiple login and there tends to be cases where users will choose Options 1 which terminates the rest with the same user IDs. This can result in loss of data as
Some Sap BASIS Ebooks 2008-08-22 08:23:20 Here are some sap useful ebookssome are from sapAGADM940ADM950above are must read books for auditorsBasics of SAPADM100
What is the difference Between External Commands And External Programs in SAP 2008-08-22 08:22:27 External commands are predefined commands for end users. They are operating-system independent and are protected by authorizations, so that normal end users can schedule only those commands that the system administrator permits them to.Like ls in unix or dir in windows. Refer to this post for information on how to run a external command External programs are unrestricted commands that are neither Read more:difference
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Checking Unused Working Memory Using Transaction ST06 (Windows NT) 2008-09-12 03:06:47 Using the paging mechanism lazy page out (removing the pages that are not in the address area of an active process), Windows
NT creates permanently free working memory (see Special Features under Windows NT). Therefore, Transaction
ST06 displays a very high value for Physical mem free in comparison to Physical mem avail (see the following graphic). Due to a faulty interpretation, the number of w Read more:Memory
Memory Pools on AS/400 for SAP Memory Management 2008-09-12 03:06:19 If with Transaction ST06 or on the CCMS Alert Monitor you notice a high paging rate in a memory pool, enlarge this pool. Machine Pool: This is always system pool 1. The paging rate should be less than 10 faults per second. Other pools: The paging rate should be ideally less than 200 faults per second. The following example can help you when assessing paging rates in your system: Faults Read more:Memory
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Checking Page Fault Rates for SAP r/3 2008-09-12 03:05:55 The following graphic displays the screen for transaction ST06. In the first screen, the current values for Pages in/s and Pages out/s are listed (in the following graphic under the heading Memory ).To display the selection screen for more detailed information, choose Detail analysis menu. To get a list of the Pages in and Pages out values in the past 24 hours, in the block Previous hour choose Read more:Fault
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UNIX Checking Page Fault Rates BASIS 2008-09-12 03:05:21 Prerequisites Unlike Windows NT, pages are swapped out to the working memory under UNIX if the space is needed, and then they are overwritten. This swapping out uses up valuable time and performance.Transaction ST06 displays a small Pages out value and a similar Pages in value in a performing system. The Pages out value is very important when assessing system performance. Procedure The foll Read more:Fault
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Windows NT Checking Page Fault Rates for SAP R/3 2008-09-12 03:04:55 Prerequisites If the operating system is not occupied with other functions, all the pages in the working memory that are not in the address area of an active work process are swapped out (lazy page out) of the operating system as a preventive measure. If space is then required, the pages already swapped out only have to be deleted. In a performing system, Transaction ST06 thereby displays a hig Read more:Windows
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AS/400 Checking Page Fault Rates 2008-09-12 03:04:35 Prerequisites If there is data already in main memory, it can be referred to independent of the memory pool in which it is stored. However, if the necessary data is not available in any memory pool, it is brought into the same memory pool as the job that refers to it. (This is described as page faults.) When data is transferred into a memory pool, other data is moved, if it is being changed, an Read more:Fault
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Monitoring the Status of SAP R/3 BASIS 2008-09-12 03:04:10 By using the following tools, you can monitor how the memory resources are used within the R/3 System:Transaction ST06 or the CCMS Alert Monitor: For monitoring the available swap space in the host system. Guidelines: If the available swap space is less than 200 MB, increase the swap space (virtual memory paging file under Windows NT).Examples: Checking Unused Working Memory using Transaction S Read more:Status
Checking Roll /Paging Area and Extended Memory using Transaction ST02 for SAP R/3 2008-09-12 03:03:36 You can use Transaction
ST02 to check if the buffers from the roll and paging areas are the same size as the paging files. By comparing the values under Max. use, you can check if the buffer size is large enough.You can determine from the row ExtendedMemory
that the R/3 Extended Memory is sufficiently large. The value Max. use is, in this example, noticeably smaller than the created memory area Read more:Paging
Overview of All Application Servers for SAP R/3 2008-09-12 03:02:32 Transaction RZ03 (CCMS Control Panel) gives you an overview of all the application servers in a distributed system. The system administrator can use this overview to decide which application server has to be analyzed more closely. To display the memory usage of the application servers, choose Edit ® Other views ® Memory management ® Absolute values.In the first four columns, the list displa Read more:Overview
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Profile Parameters of SAP R/3 Memory Management 2008-09-12 03:01:54 An overview of the memory management parameters will be shown in the following sections.A description of the parameter always follows the unit in which it is specified, the default value and a proposed value. The default value usually is based on a minimal value, therefore for very small R/3 installations (see Application Servers with Up to 15 Users), the proposed value is based on a midsize to Read more:Memory
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SAP Changing the Size of the Roll and Paging Buffers (only UNIX / NT) 2008-09-12 03:01:24 If the CCMS Alert Monitor or Transaction ST06 (see Monitoring the Status of the R/3 System) displays a high paging rate for the operating system, decrease the size of the roll and paging buffers (only Windows NT and UNIX). In the profile management of the CCMS, set the profile parameters rdisp/ROLL_SHM and rdisp/PG_SHM to 0. You must change the profiles used by the R/3 application servers on Read more:Paging
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SAP Preventing Swap Space Bottlenecks (only UNIX /NT) 2008-09-12 03:00:57 By using the following parameters, you can limit the maximum use of the process-specific memory. This in turn limits the maximum use of swap space by an R/3 application server. Consider the following parameters: Parameter Limits the amount of process-specific memory used... abap/heap_area_dia ...by any particular dialog work process abap/heap_area_nondia ... by any particul Read more:Space
Insufficient Swap Space Already at System Startup 2008-09-12 02:59:39 Symptom: Error messages in the trace files dev_disp, dev_w, where the texts ShmCreate, not enough core, PXA_NO_MEMORY, etc. appear.Help: Preventing Swap Space
Bottlenecks (only UNIX /NT) or decrease extended memory and/or increase main memory. Read more:System
, Startup
Swap Space Bottlenecks During SAP R/3 Operation 2008-09-12 02:58:49 Symptom: Various error messages that refer to memory bottlenecks (a swap space bottleneck), for example: System Panic; cmemreserve: reservation overrun; ENOMEM, Not enough core; ENOSPC, No space left on device; SIGDANGER (only under AIX). In the R/3 System, the R/3 system log message "no memory of class perm" is output. This problem can occur with R/3 processes and external processes as well. T Read more:Space
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SAP Background Jobs or Update Process Canceled due to Insufficient Swap Space 2008-09-12 02:58:18 Symptom Error messages in the trace files dev_w, where the texts malloc failed, rstg PERM, etc., appears, especially if the background jobs are active with large amounts of data. Corrective action Increase the swap space or decrease the R/3 Extended Memory.If necessary, increase the roll area.Check if the maximum process size (operating system parameter) is sufficient. See: Swap Space Read more:Update
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Background Processing Problems due to Segment Size Limitations, Especially in OS IBM AIX 2008-09-12 02:57:31 Symptom Under AIX, the heap memory may not exceed 256 MB. Extensive background processing jobs that exceed this limit may allocate R/3 Extended Memory; however, the Extended Memory may be used up. Corrective action Try to solve the problem using the following procedures. Note the sequence they are given in. If the problem cannot be corrected with one of these procedures, try the next proced Read more:IBM
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Memory Allocation Problems under OSF/1 from DEC 2008-09-12 02:57:07 Symptom Under the operating system OSF/1 from Digital Equipment Corporation, and under UNIX operating systems (64-bit), R/3 processes with the following error message are canceled: mprotect failed, rc = 12 error code ENOMEN (not enough core) Corrective action The cause of the problem may be that the value of the OSF/1 kernel parameter VPAGEMAX has not been increased. You must increase this Read more:Memory
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