Best practice for OID Net Naming Configuration in global company

I'd like some feedback on what approach to take in configuring Net Service Names in OID for a global company. We have multiple sites with multiple groups of DBA's. We're weighing pro's and con's of a single domain within OID for Net service names vs a separate domain for each distinct group of DBA's that manage service names.
To the best of my understanding, it is only possible to configure clients to look at a single domain in OID vs ldap.ora parameter default_admin_context. We have users who access databases across different DBA support areas, so we like the idea of a single domain so that any service name within the enterprise can be resolved by users without having service names entered at multiple levels in the directory.
However, it is also my understanding that to segregate security of administering service names, it is only possible to do so by having different domains within the directory (it is not possible or at least practical to have different levels of security defined in a single flat domain). I also have concerns about the manageability of service names if they are all listed in a single domain. The list could get rather unwieldy to sort through.
I would be very interested in opinion or feedback on what others are doing.
Thanks,

Similar Messages

Best Practice for Tranport request Naming

Hi,
We are using SolMan 4.0 during implementation of ECC 6.0.
We have placed the blueprint and we are in configuration phase.
We have a IMG project created in the DEV system and was assinged in Solution Manager project under System Landscape->IMG Projects.
Now that consultants are going to dev system and customizing they are creating their transport requests.
Is there any best practice for the naming convention or the transport requests..
By creating one IMG project for entire implementation is that going to create any problem..!!
Please sgugest.
Thanks & Regards
Mrutyunjay

As per MSFT best practices(Mentioned by Scott) keep it short as much as possible. You can use SP for SharePoint-SUBSite
also check this blog for best practices.
http://www.networkworld.com/community/blog/simple-naming-conventions-improve-end-user-experience-sharepoint-sites
also one more thing you should consider, never use the reserved words into the SharePoint URLs. you will able to create the site/lis/library/folder but when you browse get the 404 errors.
check this blog:
http://www.sharepointblog.cz/2012/04/reserved-words-in-sharepoint-url.html
http://techtrainingnotes.blogspot.com/2012/03/names-you-cant-use-for-sharepoint.html
Please remember to mark your question as answered &Vote helpful,if this solves/helps your problem. ****************************************************************************************** Thanks -WS MCITP(SharePoint 2010, 2013) Blog: http://wscheema.com/blog

Best Practice for monitoring database targets configured for Data Guard

We are in the process of migrating our DB targets to 12c Cloud Control.
In our current 10g environment the Primary Targets are monitored and administered by OEM GC A, and the Standby Targets are monitored by OEM GC B. Originally, I believe this was because of proximity and network speed, and over time it evolved to a Primary/Standby separation. One of the greatest challenges in this configuration is keeping OEM jobs in sync on both sides (in case of switchover/failover).
For our new OEM CC environment we are setting up CC A and CC B. However, I would like to determine if it would be smarter to monitor all DB targets (Primary and Standby) from the same CC console. In other words, monitor and administer DB Primary and Standby from the same OEM CC Console. I am trying to determine the best practice. I am not sure if administering a swichover from Cloud Control from Primary to Standby requires that both targets are monitored in the same environment or not.
I am interested in feedback. I am also interested in finding good reference materials (I have been looking at Oracle documentation and other documents online). Thanks for your input and thoughts. I am deliberately trying to keep this as concise as possible.

OMS is a tool it is not need to monitor your primary and standby what is what I meant by the comment.
The reason you need the same OMS to monitor both the primary and the standby is in the Data Guard administration screen it will show both targets. You also will have the option of doing switch-overs and fail-overs as well as convert the primary or standby. One of the options is also to move all the jobs that are scheduled with primary over to the standby during a switch-over or fail-over.
There is no document that states that you need to have all targets on one OMS but that is the best method for the reason of having OMS. OMS is a tool to have all targets in a central repository. If you start have different OMS server and OMS repository you will need to log into separate OMS to administrator the targets.

Best Practices for Accessing the Configuration data Modelled as XML File in

Hi,
I refer the couple of blof posts/Forum threads on How to model and access the Configuration data as XML inside OSB.
One of the easiest and way is to
Re: OSB: What is best practice for reading configuration information
Another could be
Uploading XML data as .xq file (Creating .xq file copy paste all the Configuration as XML )
I need expert answers for following.
1] I have .xsd file which is representing the Configuration data. Structure of XSD is
<FrameworkConfig>
<Config type="common" key="someKey">proprtyvalue</Config>
<FrameworkConfig>
2] As my project will move from one env to another the property-value will change according to the Environment...
For Dev:
<FrameworkConfig>
<Config type="common" key="someKey">proprtyvalue_Dev</Config>
<FrameworkConfig>
For Stage :
<FrameworkConfig>
<Config type="common" key="someKey">proprtyvalue_Stage</Config>
<FrameworkConfig>
3] Let say I create the following Folder structure to store the Configuration file specific for dev/stage/prod instance
OSB Project Folder
|
|---Dev
|
|--Dev_Config_file.xml
|
|---Stage
|
|--Stahe_Config_file.xml
|
|---Prod
|
|-Prod_Config_file.xml
4] I need a way to load these property file as xml element/variable inside OSb message flow.?? I can't use XPath function fn:doc("URL") coz I don't know exact path of XMl on deployed server.
5] Also I need to lookup/model the value which will specify the current server type(Dev/Stage/prod) on which OSB MF is running. Let say any construct which will act as a Global configuration and can be acccessible inside the OSb message flow. If I get the vaalue for the Global variable as Dev means I will load the xml config file under the Dev Directory @runtime containing key value pair for Dev environment.
6] This Re: OSB: What is best practice for reading configuration information
suggest the designing of the web application which will serve the xml file over the http protocol and getting the contents into variable (which in turn can be used in OSB message flow). Can we address this problem without creating the extra Project and adding the Dependencies? I read configuration file approach too..but the sample configuration file doesn't show entry of .xml file as resources
Hope I am clear...I really appreciate your comments and suggestion..
Sushil
Edited by: Sushil Deshpande on Jan 24, 2011 10:56 AM

If you can enforce some sort of naming convention for the transport endpoint for this proxy service across the environments, where the environment name is part of the endpoint you may able to retrieve it from $inbound in the message pipeline.
eg. http://osb_host/service/prod/service1 ==> Prod and http://osb_host/service/prod/service2 ==> stage , then i think $inbound/ctx:transport/ctx:uri can give you /service/prod/service1 or /service/stage/service1 and applying appropriate xpath functions you will be able to extract the environment name.
Chk this link for details on $inbound/ctx:transport : http://download.oracle.com/docs/cd/E13159_01/osb/docs10gr3/userguide/context.html#wp1080822

Best Practice for SSL in Apache/WL6.0SP1 configuration?

What is the best practice for eanbling SSL in an Apache/WL6.0SP1
configuration?
Is it:
Browser to Apache: HTTPS
Apache to WL: HTTP
or
Browser to Apache: HTTPS
Apache to WL: HTTPS
The first approach seems more efficient (assuming that Apache and WL are
both in a secure datacenter), but in that case, how does WL know that the
browser requested HTTPS to begin with?
Thanks
Alain

A getScheme should return HTTPS if the client is using HTTPS or HTTP if it
is using HTTP.
The option for the plug-in to use HTTP or HTTPS when connecting to Weblogic
is up to you but regardless the scheme of the client will be passed to
WebLogic.
Eric
"Alain" <[email protected]> wrote in message
news:[email protected]..
How should we have the plug-in tell wls the client is using https?
Should we have the plugin talk to wls in HTTP or HTTPS?
Thanks
Alain
"Jong Lee" <[email protected]> wrote in message
news:3b673bab$[email protected]..
The apache plugin tells wls the client is using https and also pass on
the
client
cert if any.
"Alain" <[email protected]> wrote:
What is the best practice for eanbling SSL in an Apache/WL6.0SP1
configuration?
Is it:
Browser to Apache: HTTPS
Apache to WL: HTTP
or
Browser to Apache: HTTPS
Apache to WL: HTTPS
The first approach seems more efficient (assuming that Apache and WL
are
both in a secure datacenter), but in that case, how does WL know that
the
browser requested HTTPS to begin with?
Thanks
Alain

Best practice for server configuration for iTunes U

Hello all, I'm completely new to iTunes U, never heard of this until now and we have zero documentation on how to set it up. I was given the task to look at best practice for setting up the server for iTunes U, and I need your help.
*My first question*: Can anyone explains to me how iTunes U works in general? My brief understanding is that you design/setup a welcome page for your school with sub categories like programs/courses, and within that you have things like lecture audio/video files and students can download/view them on iTunes. So where are these files hosted? Is it on your own server or is it on Apple's server? Where & how do you manage the content?
*2nd question:* We have two Xserve(s) sitting in our server room ready to roll, my question is what is the best method to configure them so it meets our need of "high availability in active/active mode, load balancing, and server scaling". Originally I was thinking about using a 3rd party load balancing device to meet these needs, but I was told there is no budget for it so this is not going to happen. I know there is IP Failover but one server has to sit in standby mode which is a waste. So the most likely scenario is to setup DNS round robin and put both xserves in active/active. My question now is (this maybe related to question 1), say that all the content data like audio/video files are stored by us, (We are going to link a portion of our SAN space to Xserve for storage), if we are going with DNS round robin and put the 2 servers in Active/Active mode, can both servers access a common shared network space? or is this not possible and each server must have its own storage space? And therefore I must use something like RSYNC to make sure contents on both servers are identical? Should I use XSAN or is RSYNC good enough?
Since I have no experience with iTunes U whatsoever, I hope you understand my questions, any advice and suggestion are most welcome, thanks!

Raja Kondar wrote:
wht is the Best Practice for having server pool i.e
1) having a single large serverpool consisting of "n" number of guest vm
2) having a multiple small serverpool consisting of less of number of guest vm I prefer option 1, as this gives me the greatest amount of resources available. I don't have to worry about resources in smaller pools. It also means there are more resources across the pool for HA purposes. Not sure if this is Official Best Practice, but it is a simpler configuration.
Keep in mind that a server pool should probably have up to 20 servers in it: OCFS2 starts to strain after that.

SAP HCM Implementation: Best Practice for configuring

Hi,
This is my first independent project of HCM implementation. I have just started the system configuration. Done with setting up the PA, PSA, EG and ESG. Assigned to CC. At this stage, I have a very basic question which is, what is the best practice for the next steps of configuration. What do I go to next, step up the OM in the SAP EasyAccess Menu? How should I go from here?
Would really appreciate some explanatory assistance.
Thanks in advance.
Papri
Edited by: papri_rc on Jul 8, 2011 6:40 AM

Its all depends on business requirement
at starting as i advised you review your BBP , make sure you configure everything
for your reference iam giving the following data for OM and PA config..
as part of OM
1.     depict client org structure using simple maintenance , with this you can create large structures in less time(while doing org structure be careful and refer BBP)
2.     maintain integration switches
3.     maintain plan version
4.     maintain number ranges
Configuration for PA
HR Enterprise /PersonnelStructure
u2022     Personnel Areas
u2022     Personnel Sub Areas
u2022     Employee Group
u2022     Employee Sub Group
u2022     Assignment of Personnel Area to Company Code
u2022     Assignment of Employee Sub Group to Employee Group
Basic Settings
1.     Maintain Number Range Intervals for Personnel Numbers
2.     Determine defaults for number ranges
Personal Data
1.     Create Forms of Address
2.     Create Marital Status
Family
1.     Defined Possible Family Members
Addresses
1.     Create Address Type
Communication
1.     Create Communication Types
Contractual and Corporate Agreements
1.     Define Contract Types
2.     Determine periods of notice
Employee Qualifications
1.     Create education establishment types
2.     Define Education Training
3.     Create educational Certificates
4.     Create branches of study
5.     Determine permissible certificates for education type
Infotype Menus
1.     User Group Dependency on Menus and Info groups
2.     Infotype Menu
3.     Determine choice of Infotype menus
4.     Infotype Menus
Actions
1.     User Group Dependency on Menus and Infogroups
2.     Info Group
3.     Personnel Action Types
4.     Create reasons for personnel actions
5.     Change Action Menu
*Developments(ABAPconsultant will do)     *Field Enhancements     (any field enhancements in infotypes)
Customer Infotypes     -Develop any customer infotypes if required for the business from 9000 series
Edited by: Piscian . on Jul 8, 2011 9:08 AM

What are the best practice for CQ5.5 configuration?

Hello,
What are the best practice for CQ5.5 configuration which handle for High availability.
Last time I had a issues on server when I was uploaded 2 GB of DAM and then after that the server is not able to start and always getting error regarding Tar Persistance.
So kindly request you to please let me know what are the best apache felix configuration.
Thanks in advance...
Regards,
Satish

Hi,
A DAM upload, regardless of the size of the assets, never should result in TarPM problems, unless you run into an OOM, which left the repository in an unclean state. So if you regularly do DAM uploads of that size, you should check the Garbage Collection logs and probably adjust the heapsize if necessary. You might want to limit the number of concurrent running workflows to keep the memory consumption a bit lower.
To your question: HA in a traditional sense you cannot achieve with a single box, even with optimized settings. In an author usecase you would need clustering.
Jörg

Best Practices for Configuration Manager

What all links/ documents are available that summarize the best practices for Configuration Manager?
Applications and Packages
Software Updates
Operating System Deployment
Hardware/Software Inventory

Hi,
I think this may help you
system center 2012 configuration manager best practices
SCCM 2012 task-sequence best practices
SCCM 2012 best practices for deploying application
Configuration Manager 2012 Implementation and Administration
Regards, Ibrahim Hamdy

Best Practices for Defining NDS Java Projects...

We are doing a Proof of Concept on using NDS to develop non-SAP Java applications. We are attempting to determine if we can replace our current Java development tools with NDS/WAS.
We are struggling with SAP's terminology and "plumbing" for setting up/defining Java projects. For example, what is and when do you define Tracks, Software Components, Development Components, etc. All of these terms are totally foreign to us and do not relate to our current Java environment (at least not that we can see). We are also struggling with how the DTR and activities tie in to those components.
If any one has defined best practices for setting up Java projects or has struggled with and overcome these same issues, please provide us with some guidance. This is a very frustrating and time-consuming issue for us.
Thank you!!

Hi Peggy,
In Component Model we divide software projects into small components.Components can use other components in well defined manner.
A development object is a part of a component that can be changed or developed in some way; it provides the component with a certain part of its functionality. A development object may be a Java class, a Web Dynpro view, a table definition, a JSP page, and so on. Development objects are always stored as sources in a repository.
A development component can be defined as a frame shared by a number of objects, which are part of the software.
Software components combine components (DCs) to larger units for delivery and deployment.
A track comprises configurations and runtime systems required for developing software component versions.It ensures stable states of deliverables used by subsequent tracks.
The Design Time Repository is for versioning source code management. Distributed development of software in teams. Transport and replication of sources.
You can also find lot of support in SDN for the above concepts with tutorials.
Refer this Link for a overview on Java development Infrastructure(JDI)
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/webas/java/java development infrastructure jdi overview.pdf
To understand further
Working with Net Weaver Development Infrastructure :
http://help.sap.com/saphelp_nw04/helpdata/en/03/f6bc3d42f46c33e10000000a11405a/content.htm
In the above link you can find all the concepts clearly explained.You can also find the required tutorials for development.
Regards,
Vijith

Networking "best practice" for setting up a farm

Hi all.
We would like to set an OracleVM farm, and I have a question about "best practice" for
configuring the network. Some background:
- The hardware I have is comprised of machines with 4 gig-eth NICs each.
- The storage will be coming primarily from a backend NAS appliance (Netapp, FWIW).
- We have already allocated a separate VLAN for management.
- We would like to have HA capable VMs using OCFS2 (on top of NFS.)
I'm trying to decide between 2 possible configurations. The first would keep physical separation
between the mgt/storage networks and the DomU networks. The second would just trunk
everything together across all 4 NICs, something like:
Config 1:
- eth0 - management/cluster-interconnect
- eth1 - storage
- eth2/eth3 => bond0 - 8021q trunked, bonded interfaces for DomUs
Config 2:
- eth0/1/2/3 => bond0
Do people have experience or recommendation about the best configuration?
I'm attracted to the first option (perhaps naively) because CI/storage would benefit
from dedicated bandwidth and this configuration might also be more secure.
Regards,
Robert.

user1070509 wrote:
Option #4 (802.3ad) looks promising, but I don't know if this can be made to work across
separate switches.It can, if your switches support cross-switch trunking. Essentially, 802.3ad (also known as LACP or EtherChannel on Cisco devices) requires your switch to be properly configured to allow trunking across the interfaces used for the bond. I know that the high-end Cisco and Juniper switches do support LACP across multiple switches. In the Cisco world, this is called MEC (Multichassis EtherChannel).
If you're using low-end commodity-grade gear, you'll probably need to use active/passive bonds if you want to span switches. Alternatively, you could use one of the balance algorithms for some bandwitch increase. You'd have to run your own testing to determine which algorithm is best suited for your workload.
The Linux Foundation's Net:Bonding article has some great information on bonding in general, particularly on the various bonding methods for high availability:
http://www.linuxfoundation.org/en/Net:Bonding

Best practices for dealing with Exceptions on storage members

We recently encountered an issue where one of our DistributedCaches was terminating itself and restarting due to an RuntimeException being thrown from our code (see below). As usual, the issue was in our own code and we have updated it to not throw a RuntimeException under any circumstances.
I would like to know if there are any best practices for Exception handling, other than catching Exceptions and logging them. Should we always trap Exceptions and ensure that they do not bubble back up to code that is running from the Coherence jar? Is there a way to configure Coherence so that our DistributedCaches do not terminate even when custom Filters and such throw RuntimeExceptions?
thanks, Aidan
Exception below:
2010-02-09 12:40:39.222/88477.977 Oracle Coherence GE 3.4.2/411 <Error> (thread=DistributedCache:StyleCache, member=48): An exception (java.lang.RuntimeException) occurred reading Message AggregateFilterRequest Type=31 for Service=DistributedCache{Name=StyleCache, State=(SERVICE_STARTED), LocalStorage=enabled, PartitionCount=1021, BackupCount=1, AssignedPartitions=201, BackupPartitions=204}
2010-02-09 12:40:39.222/88477.977 Oracle Coherence GE 3.4.2/411 <Error> (thread=DistributedCache:StyleCache, member=48): Terminating DistributedCache due to unhandled exception: java.lang.RuntimeException

Bob - Here is the full stacktrace:
2010-02-09 13:04:22.653/90182.274 Oracle Coherence GE 3.4.2/411 <Error> (thread=DistributedCache:StyleCache, member=47): An exception (java.lang.RuntimeException) occurred reading Message AggregateFilterRequest Type=31 for Service=DistributedCache{Name=StyleCache, State=(SERVICE_STARTED), LocalStorage=enabled, PartitionCount=1021, BackupCount=1, AssignedPartitions=205, BackupPartitions=204}
2010-02-09 13:04:22.653/90182.274 Oracle Coherence GE 3.4.2/411 <Error> (thread=DistributedCache:StyleCache, member=47): Terminating DistributedCache due to unhandled exception: java.lang.RuntimeException
2010-02-09 13:04:22.653/90182.274 Oracle Coherence GE 3.4.2/411 <Error> (thread=DistributedCache:StyleCache, member=47):
java.lang.RuntimeException: java.lang.ClassNotFoundException: com.edmunds.vehicle.Style$PublicationState
     at com.edmunds.common.coherence.EdmundsEqualsFilter.readExternal(EdmundsEqualsFilter.java:84)
     at com.tangosol.io.pof.PortableObjectSerializer.initialize(PortableObjectSerializer.java:153)
     at com.tangosol.io.pof.PortableObjectSerializer.deserialize(PortableObjectSerializer.java:128)
     at com.tangosol.io.pof.PofBufferReader.readAsObject(PofBufferReader.java:3284)
     at com.tangosol.io.pof.PofBufferReader.readAsObjectArray(PofBufferReader.java:3328)
     at com.tangosol.io.pof.PofBufferReader.readObjectArray(PofBufferReader.java:2168)
     at com.tangosol.util.filter.ArrayFilter.readExternal(ArrayFilter.java:243)
     at com.tangosol.io.pof.PortableObjectSerializer.initialize(PortableObjectSerializer.java:153)
     at com.tangosol.io.pof.PortableObjectSerializer.deserialize(PortableObjectSerializer.java:128)
     at com.tangosol.io.pof.PofBufferReader.readAsObject(PofBufferReader.java:3284)
     at com.tangosol.io.pof.PofBufferReader.readAsObjectArray(PofBufferReader.java:3328)
     at com.tangosol.io.pof.PofBufferReader.readObjectArray(PofBufferReader.java:2168)
     at com.tangosol.util.filter.ArrayFilter.readExternal(ArrayFilter.java:243)
     at com.tangosol.io.pof.PortableObjectSerializer.initialize(PortableObjectSerializer.java:153)
     at com.tangosol.io.pof.PortableObjectSerializer.deserialize(PortableObjectSerializer.java:128)
     at com.tangosol.io.pof.PofBufferReader.readAsObject(PofBufferReader.java:3284)
     at com.tangosol.io.pof.PofBufferReader.readObject(PofBufferReader.java:2599)
     at com.tangosol.io.pof.ConfigurablePofContext.deserialize(ConfigurablePofContext.java:348)
     at com.tangosol.coherence.component.util.daemon.queueProcessor.Service.readObject(Service.CDB:4)
     at com.tangosol.coherence.component.net.Message.readObject(Message.CDB:1)
     at com.tangosol.coherence.component.net.message.requestMessage.distributedCacheRequest.partialRequest.FilterRequest.read(FilterRequest.CDB:8)
     at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.DistributedCache$AggregateFilterRequest.read(DistributedCache.CDB:4)
     at com.tangosol.coherence.component.util.daemon.queueProcessor.service.Grid.onNotify(Grid.CDB:117)
     at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.DistributedCache.onNotify(DistributedCache.CDB:3)
     at com.tangosol.coherence.component.util.Daemon.run(Daemon.CDB:37)
     at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.ClassNotFoundException: com.edmunds.vehicle.Style$PublicationState
     at java.lang.Class.forName0(Native Method)
     at java.lang.Class.forName(Class.java:169)
     at com.edmunds.common.coherence.EdmundsEqualsFilter.readExternal(EdmundsEqualsFilter.java:82)
     ... 25 more
2010-02-09 13:04:23.122/90182.743 Oracle Coherence GE 3.4.2/411 <Info> (thread=Main Thread, member=47): Restarting Service: StyleCacheOur code was doing something simple like
catch(Exception e){
    throw new RuntimeException(e);
}Would using the ensureRuntimeException call do anything for us here?
Edited by: aidanol on Feb 12, 2010 11:41 AM

Best Practices for CS6 - Multi-instance (setup, deployment and LBQ)

Hi everyone,
We recently upgraded from CS5.5 to CS6 and migrated to a multi-instance server from a single-instance. Our current applications are .NET-based (C#, MVC) and are using SOAP to connect to the InDesign server. All in all it is working quite well.
Now that we have CS6 (multi-instance) we are looking at migrating our applications to use the LBQ features to help balance the workload on the INDS server(s). Where can I find some best practices for code deployment/configuration, etc for a .NET-based platform to talk to InDesign?
We will be using the LBQ to help with load management for sure.
Thanks for any thoughts and direction you can point me to.
~Allen

Please see if below metalink note guides you:-
Symmetrical Network Acceleration with Oracle E-Business Suite Release 12 [ID 967992.1]
Thanks,
JD

Best Practices for zVM/SLES10/zDB2 environment for dialog instances.

Hi, I am a zSeries system programmer who has just completed an IBM led Proof of Concept which demonstrated the viability of running SAP instances on SUSE SLES10 Linux booted in zVM guests and accessing zDB2 data via hipersockets. Before we build a Linux infrastructure using the 62 IFLs we just procured, we are wondering if any best practices for this environment have been developed as an OSS note or something else by SAP.    Below you will find an email which was sent and responded to by IBM and Novell on these topics...
"As you may know, Home Depot has embarked on an IBM led proof of concept using SUSE SLES10 running in zVM guests on IBM zSeries hardware to host SAP server instances. The Home Depot IT organization is currently in the midst of a large scale push to modernize our merchandising and people systems on SAP platforms. The zVM/SUSE/SAP POC is part of that effort, as is a parallel POC of an Intel Blade/Red Hat/SAP platform. For our production financial systems we now use a pSeries/AIX/SAP platform.
      So far in the zVM/SUSE/SAP POC, we have been able to create four zVM LPARS on IBM z9 hardware, create twelve zVM guests on those LPARS, boot SLES10 in those guests, install and run SAP instances in those guests using hipersockets for access to our DB2 SAP databases running on zOS, and direct user workloads to the SAP instances with good results. We have also successfully developed cloning scripts that have made it possible to create new SLES10 instances, configured and ready for SAP installs, in about 10 seconds using FLASHCOPY and IBM DASD.
      I am writing in the hope that you can direct us to technical resources at IBM/Novell/SAP who may be able to field a few questions that have arisen. In our discussions about optimization of the zVM/SUSE/SAP platform, we wondered if any wisdom about the appropriateness of and support for using zVM capabilities to virtualize SAP has ever been developed or any best practices drafted. Attached you will find an IBM Redbook and a PowerPoint presentation which describes the use of the zVM discontiguous shared segments and the zVM named saved system features for the sharing of reentrant code and other elements of Linux and its applications, thereby conserving storage and disk resources allocated to guest machines.   The specific question of the hour is, can any SAP code be handled similarly? Have specific SAP elements eligible for this treatment been identified?
      I've searched the SUSE Knowledgebase for articles on this topic to no avail. Any similar techniques that might help us reduce the total cost of ownership of a zVM/SUSE/SAP platform as we compare it to Intel Blade/Red Hat/SAP and pSeries/AIX/SAP platforms are of great interest as we approach the end of our POC. Can you help?
      Greg McKelvey is a Client I/T Architect at IBM. He found the attached IBM documents and could give a fuller account of our POC. Pat Downs, IBM zSeries IT Architect, has also worked to guide our POC. Akshay Rao, IBM Systems IT Specialist - Linux | Virtualization | SOA, is acting as project manager for the POC. Jim Hawkins is the Home Depot Architect directing the POC. I've CC:ed their email addresses. I am sure they would be pleased to hear from you if there are the likely questions about what the heck I am asking about here. And while writing, I thought of yet another question that I hoping somebody at SAP might weigh in on; are there any performance or operational benefits to using Linux LVM to apportion disk to filesystems vs. using zVM to create appropriately sized minidisks for filesystems without LVM getting involved?"
As you can see, implementation questions need to be resolved. We have heard from Novell that the SLES10 Kernel and other SUSE artifacts can reside in memory and be shared by multiple operating system images. Does SAP support this configuration? Also, has SAP identified SAP components which are eligible for similar treatment? We would like to make sure that any decisions we make about the SAP platforms we are building will be supportable. Any help you can provide will be greatly appreciated. I will supply the documents referenced above if they are not known to any answerer. Thanks, Al Brasher 770-433-8211 x11895 [email protected]

Hello AL ,
first, let me welcome you on board, I am sure you won't be disapointed with your choice to run SAP on ZOS.
as for your questions,
it wan't easy to find them in this long post , so i suggest you take the time to write a short summary that contains a very short list of questions.
as for answers.
here are a few usefull sources of information :
1. the sap on db2 for Z/os sdn page :
SAP on DB2 for z/OS
in it you can find 2 relevant docs :
a. best practices for ...
b. database administration for db2 udb for z/os .
this second publication is excellent , apart from db2 specific info , it contains information on all the components of the sap on db2 for z/os like zlinux,z/vm and so on ...
2. I can see that you are already familiar with the ibm redbooks , but it seems that you haven't taken the time to get the most out of that resource.
from you post it is clear that you have found one usefull publication , but I know there are several.
3. a few months ago I wrote a short post on a similar subject ,
I'm sure its not exactly what you are looking for at this moment , but its a good start , and with some patience you may be able to get some answers.
here's a link
http://blogs.ittoolbox.com/sap/db2/archives/index-of-free-documentation-on-sap-db2-administration-14245
good luck.
omer brandis.

Best practices for implementing OIM

We plan on putting OIM servers behind LB (hardware). When I develop OIM client I am required to specify OIM endpoint(s) via property java.naming.provider.url. In case of LB I'd specify a virtual host there. The question is what is the best practice for configuring LB - timeout, persistence, monitoring? I don think LB vendor is relevant, but just in case, I have a choice of F5 BigIP and Citrix Netscaler.
My understanding is that Java class tcUtilityFactory is supposed to be instantiated once (in a web client) and maintain the connection, but LB will close the connection after timeout is exceeded. So another question is if I want to use LB I have to take care of rebuilding connection when it is expired, or open/close connection every time tcUtilityFactory is needed. Any advice will be appreciated.
Thanks,
Alex

No i was not going to sync timeouts - just let it close connections after say, 5 min of inactivity. The reason is that performance data is horrible - from my desktop environment, initialization takes almost 9 sec, while reading data from OIM - only 150 milliseconds. I can't afford more than .5 sec on the whole OIM operation, as we are talking about customer experience.
Thanks,
Alex

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