Archive for the ‘infO’ Category

SAP on Red Hat Linux - RHEL-7.x

Thursday, August 11th, 2016

All runs well, but one of the expected change is - Stop living in the past.

Upgrading to the latest version of Operating System with out hindering the running applications and databases.
Here in my case, this is from RHEL-6.x to RHEL-7.x - The plan and actions are chalking out. That could be another travel blog from Santiago to Maipo.

Now, that I have to build the SAP Fiori landscape I have proposed having it on RHEL-7.
Word of caution from OS Team: Hey Vipin, this is the first system in our datacenter to go with RHEL-7.

There is always a first time. The latest SAP application server - NetWeaver-7.50 is also the first one on our landscape.


- This document is for a “NEW” installation of RHEL-7.x for SAP with Oracle-12c.
- The information here is not applicable for upgrading any lower version of RHEL to RHEL-7.x.


Install RHEL-7.x


1. Check the below Software group from Software Selection:

A. Infrastructure Server

- Large Systems Performance
- Network File System Client
- Performance Tools
- Compatibiliy Libraries

2. Additional Packages:

- uuidd
- compat-libcap1
- zip and unzip
- tcsh
- libaio-devel.x86_64
- glibc-devel.x86_64
- ksh
- gcc.x86_64
- gcc-c++.x86_64
- libstdc++-devel.x86_64
- compat-libstdc++-33.x86_64

3. Apply latest patches provided by Red Hat for all RHEL 7 packages installed on the system - yum it up!

4. Filesystem : XFS

5. Apart from the standard filesystems please create below: (SID is the SAP ID for this build, varies with different SAP install)

/oracle 2GB
/oracle/client 2GB
/oracle/stage/121_64 10GB
/oracle/SID 10GB
/oracle/SID/12102 15GB
/oracle/SID/origlogA 2GB
/oracle/SID/origlogB 2GB
/oracle/SID/mirrlogA 2GB
/oracle/SID/mirrlogB 2GB
/oracle/SID/oraarch 15GB
/oracle/SID/sapreorg 10GB
/oracle/SID/sapdata1 50GB
/oracle/SID/sapdata2 50GB
/oracle/SID/sapdata3 50GB
/oracle/SID/sapdata4 50GB
/usr/sap 10GB
/usr/sap/SID 40GB
/usr/sap/trans 20GB
/sapmnt 5GB
/sapmnt/SID 12GB
/saptmp 10GB




1. Create a file /etc/sysctl.d/sap.conf

#SAP Settings
kernel.sem=1250 256000 100 1024
net.ipv4.ip_local_port_range = 9000 65535

2. Create the file /etc/security/limits.d/99-sap.conf

#SAP Settings
@sapsys hard nofile 65536
@sapsys soft nofile 65536
@sapsys hard nproc 16384
@sapsys soft nproc 2047
@sapsys soft stack 10240
@dba hard nofile 65536
@dba soft nofile 65536
@dba hard nproc 16384
@dba soft nproc 2047
@dba soft stack 10240
@dba soft memlock unlimited
@dba hard memlock unlimited

3. SELinux to “Permissive”

4. Stop and disable Firewall until further firewall policy/rule in place.

SAP SD Benchmark on vSphere 5

Wednesday, August 3rd, 2011

The first SAP Sales and Distribution (SD) Standard Application Benchmark performed on July 19, 2011, by Fujitsu in Walldorf, Germany, was certified on August 02, 2011, with the following data:

Certification number: 2011027

Number of SAP SD benchmark users: 4,600
Average dialog response time: 0.99 seconds


Fully processed order line items per hour: 502,330
Dialog steps per hour: 1,507,000
SAPS: 25,120
Average database request time (dialog/update): 0.017 sec / 0.029 sec
CPU utilization of central server: 98%
Operating system, central server: SuSE Linux Enterprise Server 11 SP1 on VMware vSphere 5.0
RDBMS: MaxDB 7.8
SAP Business Suite software: SAP enhancement package 4 for SAP ERP 6.0


No. of servers : 1
Usage : Central server


Fujitsu PRIMERGY RX300 S6, 2 processors / 12 cores / 24 threads, Intel Xeon Processor X5690, 3.46 GHz, 64 KB L1 cache and 128 KB L2 cache per core, 12 MB L3 cache per processor, 96 GB main memory

Segmentation / CPU utilization in virtual machines : 1 virtual machine (VM) using 24 virtual CPUs
CPU utilization of VM1 (DB/Dia/Upd/Msg/Enq): 98%

End of Maintenance for Redhat Linux Distributions

Thursday, November 11th, 2010

Red Hat Enterprise Linux 6
General Availability : November 10, 2010
End of Production 1 : Q4 of 2014
End of Production 2 : Q4 2015
End of Production 3 : November 30, 2017 [End of Regular Life Cycle]
End of Extended Life Cycle : November 30, 2020

Red Hat Enterprise Linux 5
General Availability : March 15, 2007
End of Production 1 : Q4 2011
End of Production 2 : Q4 2012
End of Production 3 : March 31, 2014 [End of Regular Life Cycle]
End of Extended Life Cycle : March 31, 2017

MaxDB : SAP Re-Installation

Monday, August 9th, 2010

Clean up the following File Systems or DIRs
> /etc/opt/sdb
> /usr/spool/sql
> /sapdb/*

This Time Of The Year

Sunday, August 8th, 2010

This time of the year, I dealt with a combination of Redhat Linux 5.5, MaxDB[7.7 and 7.8] and obviously SAP on top running on VMWare ESX 4.1 with IBMs hardware plus NetBackup-6.5.4.

ERP 6.4 / NW7.01
PI 711
Redhat Cluster Suite [RHCS]

Busy time, but I will try to share my experience with those terrific combination.

Red Hat Enterprise Linux 6 Beta Released

Thursday, April 22nd, 2010

Red Hat Enterprise Linux 6 enters Beta-1 today!. The next generation of the Red Hat Enterprise Linux platform.
If you are interested in trying the Beta, download available.

Red Hat Enterprise Linux 6 blurs the lines between virtual, physical, and cloud computing to address shifts taking place in the modern IT environment.

The following are some of the many improvements and new features that are included in Red Hat Enterprise Linux 6 Beta:

Power management: tickless kernel and improvements through the application stack to reduce wakeups, power consumption measurement by Powertop, Power Management (ASPM, ALPM), and adaptive system tuning by Tuned, all enhance more efficient system power usage.

Next generation networking: comprehensive IPv6 support (NFS 4, CIFS, mobile support [RFC 3775], ISATAP support), FCoE, iSCSI, and a new and improved mac 802.11 wireless stack.

Reliability, availability, and serviceability (RAS): system-level enhancements from industry collaborations make the most of hardware RAS capabilities and NUMA architectures.

Fine-grained control and management: improved scheduler and better resource management in the kernel via Completely Fair Scheduler (CFS) and Control Groups (CG).

Scalable filesystems: ext4 file system provides support for larger file sizes and significantly reduces repair times over ext3. XFS® is a high-performance file system that supports extremely large files and is optimized for large data transfers.

Virtualization: KVM includes performance improvements and new features, sVirt protects the guest and host from unauthorized access, SR-IOV and NPIV deliver high-performance virtual use of physical devices, and libvirt leverages kernel resource management functionality.

Enterprise security enhancement: SELinux includes improved ease of use, application sandboxing, and significantly increased coverage of system services, while SSSD provides unified access to identity and authentication services as well as caching for off-line use.

Development and runtime support: SystemTap improvements, ABRT is a new framework for simple collection and reporting of bug information, and improvements are made to GCC (version 4.4.3), glibc (version 2.11.1), and GDB (version 7.0.1).

View the full release notes in detail.

SAP Troubled Kernel Patch

Sunday, January 31st, 2010

Next time when the system starts sneezing or coughing with the following symptoms:
The dialog work process may crash sporadically when you reprint from the graphic display of a spool request from transaction SP01. The same problem may also occur for the raw display of a spool request. When you forward or download a spool request, a dump ASSIGN_TYPE_ILLEGAL_CAST occurs in the function RSPO_SPOOLDATA_WRITE.

Check for the following Kernel Patch level for the respective release:

SAP KERNEL 7.00 32-BIT SP239
SAP KERNEL 7.10 32-BIT SP184
SAP KERNEL 7.00 64-BIT SP239
SAP KERNEL 7.10 64-BIT SP184
SAP KERNEL 7.01 64-BIT SP077
SAP KERNEL 7.11 64-BIT SP071

Please do not apply the following kernel patches which have been created between 23.12.2009 and 14.01.2010:
6.40 315
7.00 237, 238
7.01 75, 76
7.10 183
7.11 69, 70

    The following fixed kernels are available:

6.40 Check OSS
7.00 239
7.01 77
7.10 183
7.11 71

Also check the following notes:
Note 1422843 - Wrong deletion date in spool request
Note 1425811 - Dialog work process crashes for spool display


Friday, December 18th, 2009

I am going to look for and take as many as options…

Mozilla Service Week-Be The Difference

Tuesday, September 1st, 2009

If you believe the Internet should make life better. Join us the week of September 14-21, 2009, as we take action to make a difference in our communities, our world, our Web. Mozilla Service Week-Be The Difference!

The Web Can Make a Difference

We believe a group of committed, energized, service-minded people can accomplish almost anything. That’s why we’re harnessing the power of the Web and the passion of the Mozilla community to see how big a difference we can make in one week.

Spread Firefox Affiliate Button Spread Firefox Affiliate Button

What We Can Do

Tell a friend about Mozilla Service Week. And then tell a stranger. (Or that guy at work who’s a whiz with computers.) Send an email to friends and acquaintances telling them about Mozilla Service Week.

The more people you tell about Mozilla Service Week, the more opportunities we have to find people who want to pledge their support – or ask for our help. Help us recruit more volunteers! Download site badges and flyers to spread the word about Mozilla Service Week.

Get the word out by posting news, video or pictures on your blog, Twitter or Identi.Ca, and video and photo sites. Tag your posts with “mozservice09″ so they’re easy to find.

Now you know what to do in a better way… go on people… be the difference!

SAP Business Suite 7 Now Available

Wednesday, May 6th, 2009

To further support customers in reducing the total cost of ownership, SAP devised a synchronized release schedule for all core SAP Business Suite 7 applications—SAP ERP, CRM, SRM, SCM and PLM—designed to meet the specific business requirements of all industries.

Other key capabilities of the new SAP Business Suite include:

* Enhancement packages will help customers reduce cost and complexity by delivering future innovations in a minimally-disruptive fashion. Enhancement packages allow customers to select and deploy only the functionality they need without upgrading their solution—leaving long implementations, upgrades and disintegrated point solutions in the past.
* Value Scenarios focus on solving industry-specific business issues with end-to-end processes that span across lines of business and application boundaries. Value scenarios can be implemented in a step-wise fashion and deployed as customers need them. To further accelerate implementation, SAP Consulting offers implementation services to help speed the success of SAP Business Suite projects.
* Expanded industry-specific footprint addresses critical business requirements, across all industries, including enhanced supply chain and warehousing processes for trading, logistics and manufacturing industries; improved customer lifecycle management solutions for service and trading industries; investigative case management, tax and revenue management and other service processes for public sector organizations; and advanced metering infrastructure integration and deregulation compliance solutions for the utility industry.
* Harmonized user interfaces provide a more simplified and consistent user experience when implementing a process that spans across multiple applications
* Embedded analytics tools help customers take action on insights gained across demand, production, inventory, sales and supplier activities across their extended business networks
* Improved software lifecycle management through integration with the SAP NetWeaver® technology platform and the new SAP Business Suite can reduce landscape complexity by consolidating instances and transferring transactional data from retired systems to SAP Business Suite.
* 2,800 enterprise services enable the flexible, modular development of differentiating one’s own practices.
* Solution manager allows SAP administrators to implement content changes to SAP Business Suite applications, which reduces downtime, accelerates implementations and reduces the total cost of ownership of the IT landscape

The general availability of the new SAP Business Suite marks the arrival of a clear path forward for companies that struggle with the high cost and complexity created by disparate applications and middleware solutions,” said Jim Hagemann Snabe, member of the SAP Executive Board. “With the new SAP Business Suite, we continue to deliver on our promise to provide customers with market-leading services and solutions that deliver extraordinary value in today’s business environment.