The Red Hat Summit is coming up fast (June 27–30, 2016, in San Francisco, CA). If you want to significantly boost your understanding of this company’s leading open source solutions, which power 90% of Fortune 500 companies, you won’t want to miss this key event. The Summit promises lots of hands-on training and insight on Red Hat’s technology roadmap. https://www.redhat.com/en/summit.

SAP is a Platinum sponsor because of our commitment to openness and our sustained participation in the open source community.  If you want to learn more about SAP's solutions and our latest innovations with Red Hat technology, you’ll have a number of opportunities at the show:

1. Walk the show floor and make sure to visit us at the SAP booth (#308). Meet with expert staff to learn more about SAP's in-memory data platform and cloud solutions, which leverage Red Hat’s open source technologies.

2. Sit in on 3 breakout sessions taking place over the course of the event: Demystifying SAP HANA and its Potential Impact on Your Business Tuesday, Jun 28, 3:30 PM - 4:30 PM Room 2004 Speaker: Venkata Giduthuri (SAP HANA GTM , SAP Labs, LLC_ Redefine Your Business by Building Unique Applications on SAP HANA with Red Hat Thursday, Jun 30, 3:30 PM - 4:30 PM Room 3005 Speaker: Jordan Cao (Director, SAP Global Product Marketing) Processing Data at the Edge of the Internet with SAP and Red Hat Thursday, Jun 30, 11:30 am Room 3002 Speaker: Sid Sipes (Senior Director, Portfolio Solutions Group SAP)

3. Don’t miss our Keynote Speaker: Topic: IoT Tuesday, June 28, 2:40 pm Keynote speaker: Naykai Nayyar (General Manager and Global Head of Internet of Things (IoT) and Innovation GTM, SAP)

4. Attend our joint session with Red Hat: IoT and big data with Red Hat JBoss Middleware and SAP HANA Wednesday, Jun 29, 4:45 PM - 5:45 PM Room 3002 Speakers: -Aleksandra Aleksic - Product Manager, SAP Labs -Ted Jones - Senior Software Engineer, Red Hat -Kimberly Palko - Product Manager, Red Hat

Please be sure to visit us on the show floor, sit in on one of our 3 breakout sessions, hear our keynote speaker, or attend our joint session with Red Hat to learn more about SAP's solutions and strategic technology partnership with Red Hat. Stay informed  @SAP #SAPHANA @SAPInMemory.

Welcome to our page for SAP on SUSE Linux where we hope you will find lots of useful information. If you require further help, please don't hesitate to contact the SAP Alliance team at SUSE

Through SUSE's close collaboration with SAP, customers worldwide benefit from tight integration of products and services as well as comprehensive operating system service and support options. As a result, Tens of thousands of SAP and SAP HANA customers running on SUSE Linux Enterprise Server for SAP Applications. It's the leading platform for SAP solutions on Linux and the recommended and supported OS of choice for SAP HANA. Don't take our word for it. Take a look at the results real companies are getting from SUSE Linux Enterprise Server for SAP Applications.

SUSE in the News

• New SUSE Connect Program Links Customers with Resources Supporting Their SAP Solutions, Improving IT Responsiveness to Business Demands
• SUSE Linux Enterprise Live Patching Rescues Businesses from Planned Downtime
• SUSE Boosts Business Flexibility by Expanding Availability of SUSE Linux Enterprise Server for SAP Applications in AWS Marketplace
• Newest SUSE Linux Enterprise Server for SAP® Applications Now Available

SUSE on Youtube

• See why SUSE has 95% HANA market share
• SUSE Linux Enterprise Live Patching
• SUSE videos including SAPPHIRE 2016
• SUSE music videos

SAP on suse.com

• SUSE Linux Enterprise Server for SAP Application product page
• SUSE Linux Enterprise Server for SAP HANA solution page
• SAP Solutions on SUSE
• SAP HANA on SUSE
• SAP on SUSE Communities

SUSE Blogs on SCN

• OpenSource with Linux, OpenStack, Hadoop, Ceph, Cloud for SAP by Friedrich Krey
• SAP HANA on Power with SUSE Linux Enterprise Server for SAP Applications by Friedrich Krey
• HANA: Design and Setup by Friedrich Krey
• Video: Better disaster recovery for SAP HANA by Sabine Soellheim
• Fail-Safe Operation of SAP HANA®:  SUSE Extends Its High-Availability Solution by Fabian Herschel
• SUSE Linux Enterprise Server for SAP Applications 12 SP1 by Hannes Kuehnemund
• SUSE Connects Partners to Customers by Joanne Harris
• SUSE Linux Enterprise Server for SAP Applications is now available, on demand, via Amazon Web Services (AWS) by Joanne Harris
• SAP HANA, running on SUSE Linux Enterprise, coming to Azure by Joanne Harris
• SUSE at SAPPHIRE NOW 2016 - Booth 655 by Joanne Harris
• Join SUSE at SAPPHIRE NOW and the ASUG Annual Conference in Orlando by Sabine Soellheim

Best Practice Guide

SUSE, SAP and other partners have created best practice guides covering different aspects of setting up and configuring SUSE Linux Enterprise Server for SAP Applications together with your mission-critical software solutions.

The best practice guides are technical documents designed to help system administrators and technical consultants to integrate highly available SAP business applications into an existing SUSE Linux Enterprise Server infrastructure.

See best practice guides

Customer Success Stories

• SAP achieved achieved 99.999% system availability on SUSE
• APA-IT simplified SAP software deployment and maintenance
• Ceylon Biscuits offers more than 98 percent availability for business-critical ERP system
• China Minsheng Banking slashed TCO of IT infrastructure by 80 percent
• The European Space Agency (ESA) slashed system maintenance costs by 40 percent in year one
• Emmelibri boosts processing capacity for business-critical SAP applications
• Dimension Data provides SAP application environments on SUSE OS in SAP-certified data centers
• Greenply accelerated business insight, cutting report run-times from hours to minutes
• Kiabi cut time-to-market for new services from weeks to hours
• MBV SI enabled clients to deploy new SAP HANA systems rapidly
• Lulu Group gained a high-performance platform for business analytics
• University Leiden gained a stable, cost-efficient and flexible platform for SAP
• NIIT achieved 100% availability and no unplanned downtime ensure high-quality client services
• Oxya delivered TCO savings of up to 80 percent
• Pacific Textiles provides a highly available platform for mission-critical ERP applications
• Rusan Pharma offers 40 percent lower costs compared to alternative platforms
• Standard Media offered lower costs compared to alternative platforms
• TVS Infotech utilizes SUSE Linux Enterprise Server for SAP Applications to boost performance and availability for its SAP services
• New South Wales Fire Brigades significantly reduced its infrastructure costs while improving the availability and performance of mission-critical services
• WT Wien Ticket GmbH achieved 100-percent uptime for ticketing application
• Vonpar reduced hardware costs by 75%, software costs by 20% and power costs by 12.5%
• Vienna Hospital Association reduced IT costs while securing reliability and high performance for SAP applications
• SHS Group - Speeding sales insight with 100 times faster reporting on SAP HANA
• CIR foods invests in SAP HANA with savings from migration of systems running SAP ERP to SUSE Linux Enterprise Server for SAP Applications
• Calzedonia Group saved 70% on hardware acquisition costs, 90% on hardware maintenance costs and achieved 99.99% uptime for business-critical SAP applications when it migrated to SUSE Linux Enterprise Server for SAP Applications
• Pakistani engineering and construction company Descon Engineering Limited wanted to maintain its leading position in the market.
• Geberit Improved SAP system performance by up to 60%.
• Evonik decided to move its SAP applications from IBM AIX to SUSE Linux Enterprise Server.
• Fabbrica Automatismi Apertura Cancelli (FAAC) wanted to find a more effective platform for its core SAP* ERP systems and  migrated from its legacy IBM i platform to SUSE Linux Enterprise Server
• SUMOL+COMPAL needed to implement a uniform IT infrastructure that it could deploy with minimum disruption
• Mahindra Retail  selected SUSE Linux Enterprise Server as the platform for its SAP ERP environment
• Fauji Fertilizer Bin Qasim Ltd required a cost-effective platform for its new SAP ERP applications
• National Foods Limited chooses SUSE Linux Enterprise Server to implement SAP ERP
• Britehouse enabled low-cost, high-performance platform for SAP applications
• Infonet Nederland B.V. significantly reduced its IT operational costs and administrative workload
• Wolters Kluwer Italia runs SAP on SUSE Linux Enterprise Server with XEN virtualization
• Orbis Oy improved flexibility and performance while significantly reducing its total cost of ownership
• The Burton Corporation required high availability of its mission-critical applications
• Café Coffee Day uses SLES Priority Support for SAP Applications to protect its ERP environment
• Baldor Electric using SUSE Linux Enterprise as streamlined, highly available platform for its mission-critical SAP applications, reducing downtime costs dramatically

White Papers

SAP HANA and SUSE Linux Enterprise

• Why SUSE Linux Enterprise Server selected for use with SAP HANA?
• SUSE Linux gives SAP HANA wings

Migrating SAP from UNIX to Linux

• Migrating SAP solutions to Linux? Three Steps to Success ENDEESFRIT
• Migrating from SPARC/Oracle Solaris to x86/SUSE® Linux Enterprise Server
• Migrating from Itanium/HP-UX to x86/SUSE®Linux Enterprise Server
• Migrating from POWER/AIX to x86/SUSE®Linux Enterprise Server
• Research Brief: Linux Continues to Gain Momentum in Enterprise Server Market
• Forrester Analyst Video on Unix to Linux migration
• 7 things to look for when choosing a Linux platform for SAP workloads
• Realize the Benefits of Migrating SAP Applications from UNIX to Linux: Discover how migrating your SAP applications from Itanium/HP-UX to IBM Flex System/SUSE Linux Enterprise Server can provide tremendous opportunity for reducing energy consumption, shrinking your data center footprint and lowering operational costs.
• The Trend from UNIX to Linux in SAP Data Centers: This white paper explains what's really going on with UNIX to Linux migration from REALTECH, an international full-service consulting company that specializes in SAP technology consulting.

Contacts:

Follow SAP on SUSE (@SUSE)

• Follow our discussions on Twitter #SLESforSAP  or  sles4sap
• Follow our experts on Twitter
  • Hannes Kuehnemund (@hakuehnemund);
  • NajiAlmahmoud (@NajiAlmahmoud),
  • Dirk Oppenkowski (@dirkoppenkowski),
  • Michael Tabron (@MichaelDTabron),
  • SabineSoell (@SabineAtSUSE)

Contact the SAP Alliance team at SUSE

Please refer to the following link for detailed information of HDS Compute Blade and Hitachi BladeSymphony Servers which are certified and supported to run SAP on Linux:

• http://www.hds.com/assets/pdf/hitachi-supported-servers-for-sap-on-linux.pdf

The following servers from Hitachi are supported for SAP on Red Hat Enterprise Linux and SUSE Linux Enterprise Server.

* Hitachi Compute Blade models marketed under the BladeSymphony name in Japan.

If you want to run SAP applications on a blade/server or Linux distribution which is not listed please contact your HDS account manager.

For Information on SAP solutions from Hitachi / HDS Linux please visit: https://www.hds.com/go/sap

Hi , I'm very new in sap and I've been asked to install net weaver on the last build of SLES computer, every time I run ./sapinst I get "cannot execute binary file". it is frustrating because I've been searching all over internet for a step by step guide but no luck so far.

can someome help me maybe ?

Hello,

We have a distributed SAP ERP installation with SCS and CI running on RHEL6 servers and SAP Oracle DB host running on RHEL5 server.

We want to update  SAP kernels on the system.

But we want to update upto 722_EXT version which is supported on RHEL6 only not on RHEL5. Does it matter for the DB host?

As we understand SAP kernel executables don't run on SAP DB host. Don't it?

Would there be any issues on DB host?

Thank you in advance.

We succesfully installed the testdrive in a VM and got most of it running after some issues.

Now we are facing the issue that the license file (NPL.txt) would not install.

When running the command, the following error occures. Any hints?

nplhost:npladm 53> saplikey pf=/usr/sap/NPL/SYS/profile/NPL_DVEBMGS42_nplhost –install

*** ERROR => CTrcOpen: fopen dev_likey

---------------------------------------------------

trc file: "dev_likey", trc level: 1, release: "720"

---------------------------------------------------

Wed Jun 27 00:15:47 2012

MtxInit: 0 0 0

Loading DB library '/usr/sap/NPL/SYS/exe/run/dbsdbslib.so' ...

Library '/usr/sap/NPL/SYS/exe/run/dbsdbslib.so' loaded

Version of '/usr/sap/NPL/SYS/exe/run/dbsdbslib.so' is "720.00", patchlevel (0.80)

DBSDBSLIB : version 720.00, patch 0.080 (Make PL 0.80)

MAXDB shared library (dbsdbslib) patchlevels (last 10)

  (0.080) New feature batch streaming (note 1340617)

  (0.073) Problem with invalid DBSL datatype 111 fixed (note 1530969)

  (0.072) New feature ignore duplicates (note 1340617)

  (0.072) Corrupted PERM memory block fixed (note 1529003)

  (0.065) Send wp type to the database (note 1340617)

  (0.062) Row counter limit set to 65535 (note 1340617)

  (0.054) ABAP: Return technical database PPMS information (note 1419552)

  (0.053) ABAP: Return technical database PPMS information (note 1419552)

  (0.047) Connection table corrected (note 1466271)

  (0.047) Make and release information for MaxDB DBSL (note 578324)

Loading SQLDBC client runtime ...

SQLDBC Module  : /sapdb/clients/NPL/lib/libSQLDBC77.so

SQLDBC SDK     : SQLDBC.H  7.8.2    BUILD 017-121-241-257

SQLDBC Runtime : libSQLDBC 7.8.1    BUILD 020-121-241-388

SQLDBC client runtime is MaxDB 7.8.1.020 CL 241388

SQLDBC supports new DECIMAL interface : 1

SQLDBC supports VARIABLE INPUT data   : 1

SQLDBC supports VARIABLE OUTPUT data  : 1

SQLDBC supports Multiple Streams      : 1

SQLDBC supports LOB LOCATOR KEEPALIVE : 1

SQLDBC supports LOB LOCATOR COPY      : 1

SQLDBC supports BULK SELECT with LOBS : 1

SQLDBC supports BATCH STREAM          : 0

INFO : SQLOPT= -I 0 -t 0 -S SAPR3

Try to connect (DEFAULT) on connection 0 ...

Wed Jun 27 00:15:48 2012

Attach to SAP DB : Kernel    7.8.01   Build 020-121-241-388

Database release is SAP DB 7.8.01.020

INFO : Database 'NPL' instance is running on 'NPLHOST'

DB supports UPSERT SQL syntax : 1

DB supports new EXPAND syntax : 1

DB supports LOB locators      : 1

DB uses MVCC support          : 0

DB max. input host variables  : 2000

DB max. statement length      : 65535

INFO : SAP DB Packet_Size = 131072

INFO : SAP DB Min_Reply_Size = 4096

INFO : SAP DB Comm_Size = 126976

INFO : DBSL buffer size = 126976

INFO : SAP DB MaxLocks = 300000

INFO : Connect to DB as 'SAPNPL'

Command info enabled

Now I'm connected to MaxDB

00: NPLHOST-NPL, since=20120627001547, ABAP= <unknown> (0)

Connection 0 opened (DBSL handle 0)

INFO : SAP RELEASE (DB) = 702

SAP License Key Administration  -  Copyright (C) 2003 - 2007 SAP AG

Wed Jun 27 00:15:49 2012

*** ERROR => 20 likey_admin_clt: Couldn't open file "dev_hwid" (Permission denied). [likeylat_w.c 508]

E 20 likey_admin_clt: Couldn't open file "dev_hwid" (Permission denied).

*** ERROR => 11 likey_admin_clt: Error getting the hardware key. You might find some information in file "dev_ms" on the message server. [likeylat_w.c 508]

E 11 likey_admin_clt: Error getting the hardware key. You might find some

  information in file "dev_ms" on the message server.

At SUSE we believe in delivering open-source solutions at intervals that balance your needs to keep up with innovation, without forcing updates on you that your organization isn’t ready for. You know that we introduced SUSE Linux Enterprise Server for SAP Applications 12 SP1 back in February, and have probably heard rumors about a Service Pack 2 on the horizon. If you’re at all curious about what else we have planned to make life easier for you with your SAP landscape, then you’ll be happy to know that we’ve scheduled a webinar on June 29^th titled “What you need to know about SUSE Linux Enterprise Server for SAP Applications”.

I’ll be co-presenting with the Hannes Kuehnemund (Product Manager) to give you a peek into our future plans. We’ll also make sure you’re aware of current features that make SUSE Linux Enterprise Server for SAP Applications far and away the preferred choice for SAP applications’; especially if you currently have or plan to have SAP HANA and S4/HANA environments. At SAPPHIRE Now! in Orlando we announced a couple of new options that just couldn’t wait for the next service pack, so we’ll talk about them was well.

So whether you’re completely new to SUSE Linux Enterprise Server for SAP Applications, want to learn what’s new or want to see what’s next, this webinar will have something of interest for you. By the way, Hannes and I love talking about this product, so we’ll be happy to answer any questions you have.

Be sure to register for the webinar by clicking the registration link or scanning the QR-code below.

Register now!

Hello all,

well I am new on linux and I install a NW 7.01 and ECC 6.00 for the first time. After a bunch of problems the swpm installed me a system.

I managed to log on and the first screen I see is the warning that the UUIDD service is not running.

Used to have problems with my sap, so I try to install the uuidd rpm packages

- uuidd-2.25.1-22.1.x86_64,

- util-linux-systemd-2.25.1-22.1.x86_64

- util-linux-2.25.1-22.1.x86_64)

on my linux via YAST.

The YAST told me that there is no fitting of the uuidd to my linux.

I try the ignore button serveral times, but the uuidd demon can´t be installed (so far).

If I search the YAST with uuid instead of uuidd I find a running :

A library to generate universally unique IDs (UUIDs).

May I ask:

1) uuid and uuidd is not the same - right?

  -> Can I use the uuid for sap purposes instead of uuidd?  If yes, how ?

2) How can I start the uuidd daemon manually?

I extract the rpm package to a local folder and fond some uuidd named files.

Try to run some via Konsole the best I got is:

error while loading shared libraries: libsystemd-daemon.so.0: cannot open shared object file: No such file or directory

-> That´s correct. I can't find libsystemd-daemon also.

3) I run the uuidd - cheker provided by SAP and get these results:

./check-libuuid.sh

[ check-libuuid.sh Revision : #22 $ Date : 2015/07/08 $ ]

ERROR: uuidd package: file /usr/sbin/uuidd is not owned by any package

ERROR: uuidd is available, but inactive.

-> jeah !! let´s activate! - But how do I ???

May someone provide me some help?

Thanks.

Hi Experts,

I want to install the SAp Library Help in SAP Linux Server

I tried the SR13 T-code did all the Configuration But i am getting following error

when i press F1 iam getting following error.

Please provide me Help

Best Regards

SROY

Hello,

I´m doing the installation of a SAP system in a Suse linux (SLES 11) with Oracle 11.2.0.3. I´m in the phase "Install database server software" at SWPM tool. For the database installation, I need to log in with ora<sid> user and run the ./RUNINSTALLER.

But for this I need the xclock. For this I need to set the DISPLAY variable, I did that to localhost:0.0, I try other values like <IP address>:0.0 ; <hostname>:0.0 and so on... but everytime I try to run the xclock command it show me an error:

sapsleora:oras1o 25> xclock
No protocol specified
Error: Can't open display: :0.0

For this reason I can´t start the oracle database installation with the ora<sid> user (./RUNINSTALLER)!

Can you help me please, can you tell me how to put the xclock / xyes working?

Kind regards,

samid raif

Dear All,

We are upgrading SAP ERP EHP7 to EHP8 by using latest SUM SP 17. My OS is SUSE LINUX 12 SP1 with oracle 1.2.0.3.0 and SAP kernel version 7.45 Unicode SP 200

At  Current Phase: PREP_INIT/DBCHK_INI, extraction step it is generating error at

SUM-Phase: PREP_INPUT/CONFCHK_IMP

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

ERROR: DB version 11.2.0.3.0 out of range (too low) Upgrade the database system at least to version 12.1.0.2

INFO: Please note that this check may be preliminary since the tool has not yet collected enough information about the target. So the requested version might eventually be higher.

Determined system information:

Type of operating system: Linux X86_64

Version of operating system: 2.19

Type of database: ORACLE

Version of database: 11.2.0.3.0

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

When I checked in SPAM it should be works on this version

Please Guide

Marek

Guest blog by Tania Stepan, SUSE (Twitter: @suse_dach)

Have you seen the match on Saturday between Germany and Italy like me? This was a real penalty soccer thriller. I could not sit still even knowing that my team, the German National Football Team, is well prepared. How did I know? Well first of course I trust in Manuel Neuer, the best goal-keeper in the world, the team itself and then I was remembering myself of an article I read some weeks ago before the European Championship started. The article was a about a relatively new software solution developed by SAP: SAP Sports One.

SAP Sports One is based on the SAP HANA Cloud Platform. A key advantage of the SAP HANA-based platform is that it facilitates the processing of vast amounts of football-related Big Data. Do you know that SUSE is the #1 platform for SAP HANA?! Over 90% of all SAP HANA implementations run on SUSE Linux Enterprise. But let’s come back to the fancy SAP Sports One solution.

One functionality included in it is the Penalty Insights Function.

This provides goalkeepers and goalkeeping coaches with insights into the tactical behavior related to penalty kicks. You can search the top five or more players most likely to take penalty kicks, the areas of the goal they usually aim at, specific shot characteristics such as the player’s run, and so on. How cool is that! Before you play against a team in the tournament you can check out everything about the players especially how they act in penalty kicks. I mean not everyone can do that only those teams who work together with SAP Sports One on that like my team the DFB is doing.

Knowing that I was sure that Manuel Neuer got the well prepared information from the goalkeeping coach Andreas Köpke and that they exactly knew how the Italian player will kick their penalties. Nevertheless information in penalty kicks is not everything, you need luck too. And this time we had both. Perfect information and luck and made it to the the semi-finals at the European Championships in France. Next match is France and even knowing that there is this cool solution based on SAP HANA Cloud platform available I hope we do not need to go until the penalties again but are successful within the regular time and go to the final.

Innovation. Flexibility. Growth. These are the mandates for today’s IT organizations to become real-time, live enterprises.

Joint the webcast and hear how QALAA HOLDINGS – a leading African investment company – is running a best practice on our innovative cloud platform: SAP HANA Enterprise Cloud (HEC).

Ahmed Abd El Sattar – QALAA HOLDINGS Group’s CIO – will talk over how to accomplish

• Lower TCO and increased flexibility.
• Increased available funds by moving from CAPEX to OPEX.
• Faster program implementation and time to market.

The SAP HANA Enterprise Cloud can help you innovate faster and become more agile by enabling you to develop, extend, and run next-generation applications on the latest technology. Reduce costs, time-to-impact and become more responsive by harnessing the real-time, in-memory computing power of SAP HANA in the cloud.

Find out how you can reimagine your business and assure your customer’s delight:

• SAP HANA Enterprise Cloud is a private managed cloud offering that allows you to run your mission-critical applications in a flexible and secure cloud environment.
• SAP HANA Cloud Platform is the platform-as-a-service you can rely on to innovate faster and be more agile by developing, extending, and running next generation applications in the cloud.

With these solutions, including our industry-leading integration tools, SAP ensures that your journey to the cloud will be an easy one, leading to immediate innovation and productivity. This is how you free up IT resources to focus on innovation priorities.

Make your world simple with SAP HANA in-memory cloud solutions. See how we can help your business today by attending the webinar, sponsored by SUSE. Please feel free to forward to relevant colleagues in Business or IT.

EMEA HEC Webinar Series.

Join us on July 12th. 09:50 – 11:00 CET.

You can register here

Did you know that HANA Enterprise Cloud is based on SUSE? More on SAP on SUSE can be found here

SCP is a command to transfer files securely between Linux Systems. In order to execute it in background I recommend this way:

Then press ctrl + z which will temporarily suspend the command, then enter the command to restart the command in background:

EXAMPLE

Execute the bg command

We can check that the process is running

Some times we haven't access with root user directly to a server and we need execute su - to scale up to root. When we do we lose X connection but we can perform the following steps to run applications XWindow:

1.- Connect to server and list enviroment variables and xauth

2.- Change to root user:

johnd@JohnD-Server1:~> sudo su -

3.- Set the variable and xauth

Enjoy it

Juan de la Cruz Arellano Royo

During ssh connection with scp the SSH client try to verify the identity of the host to which it is connecting by its SSH host key. This key is created during ssh connection.

Each OS user have a file containing known, trustworthy servers. The first time that a OS user connect via ssh with a remote server

At this time if we answer yes, the ssh client continues login and save the host key in the local file but if the remote host key changed we will have a error:

To solve this error we have 3 method:

1.- Delete the known_host file:

2.- Remove the affected host from known_host file. The offending line in the above example is line 3("Offending key in /home/johnd/.ssh/known_hosts:3") so we can use the following commando to remove it:

With this method ssh will promt again to confirm the host key fingerprint when login

3.- Use UserKnownHostsFile and StrictHostKeyCheckin ssh parameters to force use an empty known_hosts file

You can set the changes permanent for all users if you edit the /etc/ssh/ssh_config or set the changes for specific user if you modify the ~/.ssh/config file

If we want to bypass key check for a particular subnet for example 192.168.0.0/24 we can modify the ssh config file with this new lines in the top of the file:

Enjoy it

Juan de la Cruz Arellano Royo

Modern SAP systems running critical workloads need to meet the highest standards for availability for their SAP services. Achieving the ideal goal of zero downtime may be a physical impossibility for some organizations. Business continuity architectures based on SAP HANA System Replication rely on the system administrator to determine that a failure has occurred and initiate the failover to the secondary system.

When it comes to SAP HANA total cost of ownership (TCO), one of the main cost drivers is related to lowering management and operational costs by designing an efficient landscape and meeting aggressive Service Level Agreements (SLAs).

SAP HANA offers three levels of disaster recovery support:

• backups
• storage replication
• system replication

With the help of SAP HANA System Replication you are able to ensure high availability (HA) and disaster recovery (DR).

SAP HANA System Replication provides the possibility to copy and continuously synchronize an SAP HANA database to a secondary location in the same or another data center. While System Replication is running, the secondary system, which is configured identically to the primary, is on standby until a takeover takes place.

The secondary server can normally not be used for anything else. SUSE Linux Enterprise Server for SAP Applications enhances this feature by providing resource agents for detecting a failure and automating the SAP HANA takeover. SUSE has implemented the automation with the help of two resource agents: the SAPHanaSR resource agent, which performs the actual check of the SAP HANA database instances, and the SAPHanaTopology resource agent, which runs information about the status and configuration of system replications.

While SAP is adding support for additional SAP HANA System Replication scenarios based on company requests, SUSE matches those by adding failover detection and automation for those scenarios as well.

Download the whitepaper and set-up a performance-optimized Sap HANA Infrastructure.

More information on SAP on Linux can be found here: SAP on SUSE

Hello,

I am a basis admin with very little knowledge on OS administration. I am tasked to provide support for a newly installed SLES_SAP 12 SPS 1 sandbox system, on which we have installed a HANA system.

SAP note 2205917, the linux kernel should be at least at 3.12.51-60.20 while we are at 3.12.49-11.

Can anyone point me to a good documentation on how to patch SLES_SAP kernel?

Additional information if required:

> SUSEConnect -s

[{"identifier":"SLES_SAP","version":"12.1","arch":"x86_64","status":"Not Registered"}]

> zypper lr

# | Alias                 | Name                  | Enabled | GPG Check | Refresh

--+-----------------------+-----------------------+---------+-----------+--------

1 | SLE-12-SP1-SAP-12.1-0 | SLE-12-SP1-SAP-12.1-0 | Yes     | (r ) Yes  | No

> zypper  se -s 'kernel*'

Loading repository data...

Reading installed packages...

S | Name                 | Type       | Version         | Arch   | Repository

--+----------------------+------------+-----------------+--------+----------------------

i | kernel-default       | package    | 3.12.49-11.1    | x86_64 | SLE-12-SP1-SAP-12.1-0

  | kernel-default       | srcpackage | 3.12.49-11.1    | noarch | SLE-12-SP1-SAP-12.1-0

  | kernel-default-base  | package    | 3.12.49-11.1    | x86_64 | SLE-12-SP1-SAP-12.1-0

i | kernel-default-devel | package    | 3.12.49-11.1    | x86_64 | SLE-12-SP1-SAP-12.1-0

i | kernel-devel         | package    | 3.12.49-11.1    | noarch | SLE-12-SP1-SAP-12.1-0

i | kernel-firmware      | package    | 20140807git-9.1 | noarch | SLE-12-SP1-SAP-12.1-0

  | kernel-firmware      | srcpackage | 20140807git-9.1 | noarch | SLE-12-SP1-SAP-12.1-0

i | kernel-macros        | package    | 3.12.49-11.1    | noarch | SLE-12-SP1-SAP-12.1-0

i | kernel-source        | package    | 3.12.49-11.1    | noarch | SLE-12-SP1-SAP-12.1-0

  | kernel-source        | srcpackage | 3.12.49-11.1    | noarch | SLE-12-SP1-SAP-12.1-0

  | kernel-syms          | package    | 3.12.49-11.1    | x86_64 | SLE-12-SP1-SAP-12.1-0

  | kernel-syms          | srcpackage | 3.12.49-11.1    | noarch | SLE-12-SP1-SAP-12.1-0

  | kernel-xen           | package    | 3.12.49-11.1    | x86_64 | SLE-12-SP1-SAP-12.1-0

  | kernel-xen           | srcpackage | 3.12.49-11.1    | noarch | SLE-12-SP1-SAP-12.1-0

  | kernel-xen-base      | package    | 3.12.49-11.1    | x86_64 | SLE-12-SP1-SAP-12.1-0

  | kernel-xen-devel     | package    | 3.12.49-11.1    | x86_64 | SLE-12-SP1-SAP-12.1-0

  | kernelshark          | package    | 2.0.4-3.95      | x86_64 | SLE-12-SP1-SAP-12.1-0

regards

AD

Please refer to the following link for detailed information of HDS Compute Blade and Hitachi BladeSymphony Servers which are certified and supported to run SAP on Linux:

• http://www.hds.com/assets/pdf/hitachi-supported-servers-for-sap-on-linux.pdf

The following servers from Hitachi are supported for SAP on Red Hat Enterprise Linux and SUSE Linux Enterprise Server.

* Hitachi Compute Blade models marketed under the BladeSymphony name in Japan.

If you want to run SAP applications on a blade/server or Linux distribution which is not listed please contact your HDS account manager.

For Information on SAP solutions from Hitachi / HDS Linux please visit: https://www.hds.com/go/sap