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SAP Basis/Netweaver Tutorials, Monitoring, Administration(Certification) and FAQs


Thursday, 11 August 2011

Memory allocation sequence to non dialog work processes in SAP

This article answers the following queries:
  • What is the memory allocation sequence to non dialog work processes (background, update, enqueue and spool workprocesses in SAP?
  • What are the SAP parameters used to define initial roll area, extended memory, heap memory, roll area ?
  • What is the memory allocation sequence to non dialog work processes in Windows NT?

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Memory allocation sequence to dialog workprocesses is same in SAP for all the platforms.
However memory allocation sequence to non-dialog workprocesses is bit different based on Platform. In Windows NT, memory allocation sequence for non-dialog workprocesses is same as that of dialog workprocess memory allocation sequence in other platforms.

Memory allocation sequence to non dialog work processes in SAP as below (except in windows  NT) :
  1. Initially memory is assigned from the Roll memory. Roll memory is defined by SAP parameter  ztta/roll_area and it is assigned until it is completely used up.
If the roll  memory  is full  then
  1. Heap memory is allocated to the non-dialog workprocess.  Heap memory is available until one of the following occurs :

  • Either the limit of the heap memory for non-dialog workprocesses is reached (defined by the SAP parameter abap/heap_area_nondia) or the entire heap memory  of all workprocesses of an SAP application server reaches its limit which is defined by parameter abap/heap_area_total
  • Operating system limits of allocating memory
  • The swap space in the host system is completely used up. However this situation should not occur often which results in severe performance issues.Please check swap space requirements for various platforms and define swap space optimally to avoid this issue.
  • If all the above mentioned heap memory is completely used up then a non-dialog workprocess can use the SAP extended memory defined by SAP parameter em/initial_size_MB.

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Wednesday, 10 August 2011

SAP Basis sample CV - 3

Durga Prasad

Mob : xxxxxxxxxxxxx

 

__________________________________________________________

Profile

q  3+ years of experience as a SAP Basis Netweaver Consultant.
q  SAP experience includes SAP Installations, Upgrades and Maintenance with one full life cycle implementation.
q  Excellent expertise in major UNIX based OS particularly AIX and also good at handling Oracle database.
q  Good working knowledge on New Dimensional Products like Netweaver 2004s BW, APO, EP6, XI (Netweaver 04), Netweaver CE 7.11, NWDI and CRM.
q  Good working knowledge in Solution Manager 7.0
q  Good expertise in administering both ABAP and JAVA stack systems and also systems with 7.1 architecture.
q  Good client facing skills.
q  Extensive experience in analyzing and solving day-to-day Production issues with client facing skills.
q  Excellent communication skills, interpersonal skills, adaptive and self-learner.

Skill Set

 

q            ERP            : SAP ECC 5.0,SCM ICH(4.1) and APO(5.0), XI 3.0, BIW 7.00, Enterprise Portal 6.0 &   7.0, Solution Manager 7.0, CRM 5.2, SRM 5.0, Netweaver CE 7.1 and BI Accelerator, CPS by Redwood
q  RDBMS      : Oracle 9i & 10g
q  Languages  : C, C++, Java
q  O/S            :  IBM AIX 64 bit, Windows NT/2000 Server

Education

 

q  Completed 10th from xxxxx  School, xxx City  in year 19xx with 88%.
q  Completed Diploma in Electronics and Communication from XXX college, xxxx city in year 20xx with 86%.
q  Completed Bachelor’s in XXX Engineering from XXX college of Engineering, in year 20xx with 77%.

Professional Experience

From date  – Till date,          SAP Basis Consultant    XXX Technologies Pvt Limited, xxx City, India

Project            : /* Please provide project details */
Client : xxxx Client
Role     : SAP Basis Consultant

Responsibilities / Deliverables:

q  As a Team Member:
o   Transports to Production (troubleshooting issues related to transports)
o   Resolving problems/incidents in SAP systems.
o   Allocation of support tickets amongst the team.
o   Proactively identifying the issues in SAP Production Systems.
o   Provide SLA based delivery for all calls raised via Solution manager
o   Provide customer with facts and figures on the system performance
o   Attend weekly support review with customer and update them with analysis.
o   Responsible for all aspects of SAP Basis Administration, system installation, upgrades, database management. Some of the roles performed include
o   System Copy/refresh for BIW, XI, EP, CRM, CE and APO systems
o   Planning & Integration of Systems during the implementation phase.
o   Setting up of the Disaster Recovery Systems.
o   Disaster Recovery/Fallback Test's.
o   Kernel Upgrades and Support Pack and Add-on & Plugin's Implementation
o   Client Copies (Local, Remote and client transport) and Client deletions
o   CCMS configuration across Dev and QA environment.
o   Performing routine health check for SAP systems
o   Database Upgrades and patch applications.
o   Maintain system profiles and defining operation modes.
o   Alert configuration through solution manager
o   Administration of SAP R/3 database using BRTools.
o   Administration and Patch upgrade of Livecache server
o   Problem analysis for XI related issues.
o   Table re-org and other related maintenance activities.
o   Worked on Central Process scheduling by Redwood.
o   Implemented PreCalCulation server for BI.
o   Setting up Solution Monitoring in Solution Manager for 12 Production Servers.
o   Restore & Recovery of offline and online backups.
o   License request, object key, user key, monitoring OSS messages, SP download through Service Marketplace.
o   Administration of BIA servers (Business Intelligence Accelerator).
o   Installation and configuration of GRC tools like VIRSA, FOX Tool etc.
o   Spool device creation.
o   Implementing SMD and wily introscope.
o   Was the active member of the team which completed Solution Manager 7.0 and CE 7.1 upgrade to EHP1 successfully.
o   Implementing and configuring NWDI

q  Participated in performance analysis and performance tuning in all production Systems.
q  Participation in support process improvements.
q  Provide problem determination and resolution services for Security related issues.
o   Central User Administration
o   Expertise in User, Role and Profile administration
o   Authorization Objects administration.
o   GRC tools like Virsa, Firefighter, Fox tool etc.
q  Responsible for effective communication between the team and the customer. Provide day-to-day direction to the team and regular project status to customer.
q  Maintain customer focus and customer satisfaction throughout by gaining their respect, credibility and rapport.

Environment             : SAP ECC 5.0,SCM ICH (SCM 2005) and APO (5.0), LiveCache 5.0., PI 7.1, BIW 7.00, Enterprise Portal 7.0, Solution Manager 7.0, IBM AIX 64bit, Oracle 9i and 10g, GRC tools – Virsa Compliance Calibrator 4.0, SRM 5.0, FOX Tool and Firefighter. CRM 5.2 and Netweaver CE 7.1, KPRO, TREX, LiveCache.
   Team Size               : 18


From Date – To Date,             SAP Basis Consultant       XXX company Limited, XXX city, India


Project            : /*Please provide Project details */
Client : xxxxx client
Role     : SAP Basis Consultant

Responsibilities / Deliverables:
q  As a Team Member:
o   Installations of Dev & QA systems.
o   System Copy/refresh for R/3, BIW, XI, EP, CRM and APO systems.
o   Disaster Recovery/Fallback Test's
o   Applying OSS Notes
o   Printer Administration and STMS Configuration and management.
o   Kernel Upgrades and Support Pack implementation in Dev and QA systems.
o   Integration systems, maintenance of CHARM and support desk with Solution Manager.
o   Setting up CUA for the whole landscape

Environment             : SAP ECC 5.0, SCM ICH (4.1) and APO (5.0), XI 3.0, BIW 7.00, Enterprise Portal 6.0, Solution Manager 4.0, IBM AIX 64bit, Oracle 9i and 10g.
Team Size              : 12

Achievements

q  Received XXXX award for providing excellent SLA based SAP support to client
q  Received XXX award  for providing excellent project delivery and winning clients trust.

Date: xxxxxx
Place: xxxxxx                                                                                                            Durga prasad


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Memory allocation sequence to dialog work processes in SAP

This article answers the following queries:
  • What is the memory allocation sequence to dialog work processes in SAP?
  • When does a work process go to PRIV mode?
  • How to avoid or minimize work process going to PRIV mode ?
  • What are the SAP parameters used to define initial roll area, extended memory, heap memory, roll area ?
Memory allocation sequence to dialog work processes in SAP :
--------------------------------------------------------------------------------------

  1. Initially , a defined roll area is used. This roll area is defined by the SAP parameter ztta/roll_first.
Usually ztta/roll_first is set to 1 in SAP so that only technically necessary amount  is allocated to roll memory.
 If the memory from the initial roll area( i.e. ztta/roll_first) is not sufficient for the user context then
  1. Extended memory is used until  the extended memory is full or until the user quota is reached
Extended memory is defined by the SAP parameter em/initial_size_MB and the user quota for dialog workprocess is defined by the parameter ztta/roll_extension_dia.
If this memory is also not sufficient, then
  1. The rest of the roll area is used. This roll area is defined by SAP parameter ztta/roll_area.
Once this is also fully occupied then
  1. The system is forced to use local heap memory (Private memory). Then the work process goes into PRIV mode
Heap memory is available until one of the following occurs :
i)        Either the limit of the heap memory for dialog workprocesses is reached (abap/heap_area_dia) or the entire heap memory of all work processes(abap/heap_area_total)  for an application server reaches its limit.
ii)     Operating system limit for allocation of memory
iii)     The swap space in the host system is used up or the upper limit of the operating system address space is reached.

The memory allocation strategy for dialog work processes, aims to prevent work processes from allocating R/3 heap memory and thus entering PRIV mode.
When  a work process enters PRIV mode, it remains connected to the user until the user ends the transaction. Most of the time,  we should try to avoid the situation of work process going into PRIV mode for better performance of the SAP system. This can be done by optimally defining abap/heap_area_total parameter.






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SAP Basis sample CV - 2

               
Durga Prasad
Mobile: +91 XXXXXXX    Email: xdurgaprasad786@gmail.com

 

Summary

F  4 years experience in SAP Basis.
F  Developed good skill set in SAP Solution Manager (7 & EHP1) and SAP PI (7 & 7.1).
F  Installation of various sap products ranging from R/3 4.7 to PI7.1
F  Experience in implementation and build stage of projects
F  Providing production support for major projects
F  Experience in carrying out various roles as a lead as well as a team member
F  Multitasking ability to sketch the plan, prioritize the work and carry out tasks under aggressive timelines




Country Experience

F  India, UK, USA, Denmark  


Professional Experience

XXX Technologies Pvt Limited                                                                                                  

Projects Handled:

Project#1:
Client                                    :               /*Provide client details */
Duration                             :               ( Jan xx – Dec xx)              
Environment                      :               PI 7.1, EP 7.0, CRM 2007, BI 7.0, ECC 6.0 (ISU supply and metering)
OS                                          :               AIX 6.1
Database                             :               Oracle 10g
Team Size/Role                :               18/Basis Administration

Project Description          : Joined the project when the project was in build phase prior to go live. The activites involved resolving backlog. The landscape has around 90+ sap systems. Carrying out the database refreshes, client refreshes and delivering them on time. Currently in the post go live phase providing 24x7 production support.
                         
ü  Installation of Application servers and Web Dispatchers.
ü  CRM2007, SAP ISU and EP7.0 system refresh using import/export and database restore methods.
ü  Middleware configuration between CRM 2007 and ISU.
ü  Resolving CRM WebUI related problems in production systems. Resolving timeout error in CRM.
ü  Moving SLD from local to central SLD in PI as well as other Sap systems. Resolving SLD related problems.
ü  Configuration to publish web services in PI. Importing XI content in PI systems. CTS+ configuration for PI systems.
ü  Client administration activities like client deletion, client export/import, local client copy, User master export/import.
ü  Log configuration in VA to enable developers to view logs in separate log file. Tunning memory parameters related to ITS
ü  Application of OSS Notes. Opening OSS connections. Carrying out transports.
ü  Carrying out health checks of Sap Systems.ADS configuration.
ü  Configuration of SSO between EP and BI. Configuring SSL for CRM WebIC.
ü  Performing various SAP Market place activities like software downloads, connection maintenance, co ordination with SAP with various SAP message.
ü  Providing regular/24*7 on call incident support using IBM clear quest and Infra (production environment) tools.


Project#2:
Client                                    :               /*Pls provide client details */                        
Duration                              :              ( Jan xx – Dec xx)
Environment                      :               PI 7.1, CRM 2005, BI 7.0, ECC 6.0, Solution Manager EHP1
OS                                          :               Windows Server 2006
Database                             :               MS SQL
Team Size/Role                :               8/Basis, Solution Manager Administration

Project Description          :               Joined the project right from the beginning of implementation phase. The activities carried out in the project were not limited to sap basis but included handling the vast activities with Solution Manager. Worked as Sap Basis Lead for providing post go live support for 4 months. Several critical problems were resolved during go-live as well as post go live.

ü  System builds using homogeneous system copy procedure.
ü  Performing system, SAP and Data base restart including HA/Production systems.
ü  Performing local/remote client copies for regular refresh.
ü  SAP Kernel, Patch and Add-on implementation including ABAP and Java stack using SDM/JSPM.
ü  Configurations/activities using Visual Admin and Config Tool.
ü  Regular System/Batch Job Administration and Monitoring.
ü  Upgrading Solution Manager 7.0 to EHP1 (SP-19).
ü  Solution Monitoring Setup for ABAP and JAVA System including availability check & GRMG.
ü  Implementation of End to End root cause analysis with solution manager diagnostics and wily introscope.
ü  Implementation of SAP Early watch alerts and Installation of various agents used like CCMS/SMD.
ü  Understanding and working with Project and document management in SAP Solution Manager 7.0
ü  Maintenance of system landscape with SMSY and SLD configuration with bridge on PI 7.1.
ü  Implementation of Solution Manager Service desk in SolMan 7.0 including auto mailers, maintenance of support/service model, I base maintenance, SLA setup and integration with test management etc.
ü  Performing various SAP Market place activities like software downloads, connection maintenance, co ordination with SAP with various SAP message.
ü  Providing regular incident solution/support with in the SLA duration using SOLMAN service desk and Assist(Ticketing tool for production environment.

Project#3:
Client                                    :               /*Pls provide client details*/  
Duration                             :                ( Jan xx – Dec xx)
Environment                      :               R/3 4.6C, BI7.0, GTS, CRM 4.0, IPC 4.0, TREX 7.0
Operating System            :               Sun Solaris
Database                             :               Oracle 10g
Team Size/Role                :               3/ Solution Manager Implementation

Project Description          :               SAP Solution Manager Implementation with critical timelines and direct deployment on productive environment. Preparing implementation plan as well as coordination project Basis as well client team providing knowledge transfer and Demo of functionality.

ü  Upgrading Solution Manager 7.0 to EHP1 (SP-19), both ABAP and Java stack (using SDM/JSPM)
ü  Trouble shooting Errors during upgrade in SAP and database level.
ü  Performing BR Tools operations related to space and oracle database.
ü  Start/stop SAP and Database Instance in distributed environment with critical downtime windows.
ü  Implementation of SLD, EWA (including standalone portal), SMTP, SP Connect and Maintenance optimizer.
ü  Implementation of End to End root cause analysis with solution manager diagnostics and wily introscope in solution manger EHP1.
ü  Working with various E2E RCA functionalities like Change, Workload, Exception and Wily Introscope analysis.
         ü  Solution Monitoring Setup for ABAP and JAVA System including availability check & GRMG.
ü  Installation of CCMS/SMD agents, configuration of CEN, ALM, Threshold repository for various MTEs.
ü  Performing various SAP Market place activities like software downloads, connection maintenance, co ordination with SAP with various SAP message.


Project#4:
Client                                    :               /*Pls provide client details */        
Duration                              :               ( Jan xx – Dec xx)
Environment                      :               PI 7.0, SAP Solution Manager EHP1
Operating System            :               AIX 6.1
Database                             :               Oracle 10g
Team Size/Role                :               3/ Solution Manager Implementation

Project Description          :               Automation of Business critical PI monitoring with SAP Solution Manager considering all components of PI system.

ü  Understanding of value/operability of PI
ü  system amongst the landscape based prior experience on SAP PI.
ü  Automation of monitoring for different PI components like Integration, Adapter and Business process engine.
ü  Measurement/Automation of manual monitoring of PI system like ABAP Queues, transactional RFCs, XI messages in different engines (Integration/Adapter/Business process engines)
ü  Working together with SAP experts to fix faced issues.


Project#5:
Client                                    :               /*Pls provide client details */
Duration                              :              ( Jan xx – Dec xx)
Environment                      :               PI 7.1, CRM 2007, BI 7.0, ECC 6.0, Mobile
Operating System            :               AIX 6.1
Database                             :               Oracle 10g
Team Size/Role               :               /* Please explain your role in the project */


Project Description          :               Providing Basis solutions/support for successive Go Lives (3 Go Lives) to the client. Providing resolution of the issues within the SLA timelines.

ü  Performing planned activities like kernel, SAP/Oracle patch upgrade.
ü  Working with various transport related activities in STMS configuration for various SAP systems.
ü  Performing various operations related to BR tools.
ü  Working with NWDI operations.
ü  Regular monitoring of various SAP components like CRM, BW, ECC, PI.
ü  SAP user admin activities like creation, role assignment using CUA including CUA setup.
ü  Worked for different authorization related issue with different transaction codes ST01(system trace),SUIM,SU24 and providing different types dev keys/object registration etc.
ü  Providing regular incident solution/support with in the SLA duration using remedy.



Project#6:
Client                                    :               /*Pls provide client details */
Duration                                :               (Jan xx -  Dec xx)
Environment                      :               PI 7.0, CRM 2005, ECC 6.0
Operating System            :               AIX 6.1
Database                             :               Oracle 10g
Team Size/Role                :               2/ SAP Basis Administration

Role:      /* Please explain your role in the project */


ü  Working with various transport related activities in STMS including configuration for various SAP systems and moving transports to productive environment.
ü  Basic operation on User administration like creation, role assignment, password maintenance, authorization checks/assignments.
ü  Basic security role operations like creation/build/change of single/composite roles, generation, user assignments etc.
ü  Performing regular health checks/monitoring through out the landscape including XI monitoring/troubleshooting involving queues, XI messages and transaction RFCs.
ü  Working with different SAP Basis issues like OSS Notes, Client admin, spools, ABAP dumps system logs etc.
ü  Batch Job administration using SAP Central Process Scheduling tool
ü  Providing 24*7 regular/on call production incidents support with in the SLA time lines using Remedy.
ü  Preparing regular/weekly reports and trackers.
ü  Apart from SAP working with other tools involved in the project like RFTS and MQ adapters.


Project#7:
Client                                    :               /*Pls provide client details */       
Duration                              :               ( Jan xx – Dec xx)
Operating System            :               Windows 2003 server
Database                             :               Oracle 10g
Role:          /* Please explain your role in the project */

ü  Installation of multiple SAP components like R/3 4.7, ECC 6.0, CRM 2005 and SAP Solution Manager 7.0.
ü  Applied SAP Support Packs, Sap notes, kernel upgrade. Client Administration including client copy, client export, client import.
ü  Resolved tickets on the shared point: The categories of tickets consisted of  the following
à  User Management like different type of User Creations, deletion of user.
à  Created new roles, maintained profiles using PFCG, provided missing authorization to the users.
à  Analyzed and trouble shooting of ABAP Short dumps.  Created and maintained RFC connections
à  Start & Stop Sap Server using MMC. Table Space maintenance using BRTOOLS
à  Service marketplace related activities: Raising OSS message with sap and opening OSS connections.
à  Registered Developer User-id, objects and request license key. Created S-user id and provide appropriate authorizations to them.


Educational Qualifications

·         Bachelor of Information Technology from XXX college/University, Tamilnadu, India with 78%.
·         Sap Basis Training from XXX Institute



Personal Details

Date of Birth                                :               11 th Nov,  1982
        Mobile                                           :               + 91xxxxxxxxxx
        Email                                            :              
Father’s Name                           :               xxxxxxxxxxx
Passport Number                      :               Available On Request
Present Address                        :               X Nagar, H:no x-xx-xx,
                                                                        Y street ,
                                                                        Chennai, Pincode- xxxxxxx , Tamilnadu, India

Permanent Address                 :                X Nagar, H:no x-xx-xx,
                                                                      Y Street ,
                                                                        Chennai, Pincode- xxxxxxx , Tamilnadu,  India
                                                                   
                           



 

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