Best Practice for ip helper-address

I have 2 dhcp servers on same subnet 192.168.1.0
I'm trying to setup my SVI
Gateway 192.168.6.1
How should the ip helper-address be setup?
ip helper-address 192.168.1.0
or
ip helper-address 192.168.1.1 <- dhcp 1
ip helper-address 192.168.1.2 <- dhcp 2
2 Dhcp servers setup each to handle half the scope of a given subnet.

Sparky
Generally I believe that the best practice for this is to use two helper address statements. This will send two unicaast packets, one to each server. The other alternative is to send a directed broadcast (which would actually be ip helper-address 192.168.1.255). To do this you would also have to be sure that ip directed-broadcast was enabled on the router interface connecting to the 192.168.1.0 subnet. Many people reguard ip directed-broadcast as a security vulnerability and do not want it enabled. If your environment is comfortable with enabling this function then both alternatives would work. The advantage of the directed broadcast is that it transmits one packet rather than transmitting two packets. If it were me I would use two helper address statements.
HTH
Rick

Similar Messages

  • Best practice for copying help...

    I am creating a webhelp project to be accessed from an internal homegrown intranet app(by clicking on a help button within the app it fires up the help screens in a new window).... I published the help out to a network share however now in testing opening this from my app it takes a long time to fire up the new window...
    Is there a best practice for this type of scenario?? Do I need a way to copy the help project down locally for each user? If so what is the best technique being that they are accessing the help in a webapp not a winapp?
    Thanks!

    Hi there
    Typically you leave WebHelp on a server and access it from wherever. That's the beauty of it.
    You might begin by creating a simple shortcut or hyperlink from your desktop to open the help. Check the time it takes. If it opens really fast, you know there is an issue to be addressed with the way your application is opening it.
    Cheers... Rick
    Helpful and Handy Links
    RoboHelp Wish Form/Bug Reporting Form
    Begin learning RoboHelp HTML 7 or 8 within the day - $24.95!
    Adobe Certified RoboHelp HTML Training
    SorcerStone Blog
    RoboHelp eBooks

  • Best practice for application help for a custom screen?

    Hi,
    The system is Netweaver 7.0 SP 15 with e-recruiting .
    We have some custom SAP GUI transactions and have written Word documents with screen prints and explanations. I would like to make the procedure document accessible from the custom transaction or at least provide custom help text that includes a link to the full documents.
    Can anyone help me out with options and best practices for providing customized application help for custom SAP GUI transactions?
    Thanks,
    Margaret

    Hello Margaret,
    sorry I though you might be still in a design or proof of concept phase where the decision for the technology is still adjustable.
    If the implementation is already done things change of course. The standard in-system documentation is surely not fitting your needs as including screenshots won't work well.
    I would solve the task the following way:
    I'd make a web or pdf document out of the word document and put it on a web ressource - as you run e-recruiting you have probably the possibility for that.
    I would then just put a button into the transaction an open a web container to show the document.
    I am not sure if this solution really qualifies as "best practise" but SAP does the same if you call the Help for application in the help menue. This is implemented in function module SAPGUIHC_OPEN_HELP_CENTER. I'd just copy it, throw out what I do not need and hard code the url to call.
    Perhaps someone could offer a better solution but I think this works a t least without exxagerated costs.
    Kind Regards
    Roman

  • BI Best Practice for Chemical Industry

    Hello,
    I would like to know if anyone is aware of SAP BI  Best Practice for Chemicals.And if so can anyone please post a link aswell.
    Thanks

    Hi Naser,
    Below information will helps you in detail explanation regarding Chemical industry....
    SAP Best Practices packages support best business practices that quickly turn your SAP ERP application into a valuable tool used by the entire business. You can evaluate and implement specific business processes quickly u2013 without extensive Customization of your SAP software. As a result, you realize the benefits with less Effort and at a lower cost than ever before. This helps you improve operational efficiency while providing the flexibility you need to be successful in highly demanding markets. SAP Best Practices packages can benefit companies of all sizes, including global enterprises creating a corporate template for their subsidiaries.
    Extending beyond the boundaries of conventional corporate divisions and functions, the SAP Best Practices for Chemicals package is based on SAP ERP; the SAP Environment, Health & Safety (SAP EH&S) application; and the SAP Recipe Management application. The business processes supported by SAP Best Practices for Chemicals encompass a wide range of activities typically found in a chemical industry
    Practice:
    u2022 Sales and marketing
    u2013 Sales order processing
    u2013 Presales and contracts
    u2013 Sales and distribution (including returns, returnables, and rebates, with quality management)
    u2013 Inter- and intracompany processes
    u2013 Cross-company sales
    u2013 Third-party processing
    u2013 Samples processing
    u2013 Foreign trade
    u2013 Active-ingredient processing
    u2013 Totes handling
    u2013 Tank-trailer processing
    u2013 Vendor-managed inventory
    u2013 Consignment processing
    u2013 Outbound logistics
    u2022 Supply chain planning and execution Supply and demand planning
    u2022 Manufacturing planning and execution
    u2013 Manufacturing execution (including quality management)
    u2013 Subcontracting
    u2013 Blending
    u2013 Repackaging
    u2013 Relabeling
    u2013 Samples processing
    u2022 Quality management and compliance
    u2013 EH&S dangerous goods management
    u2013 EH&S product safety
    u2013 EH&S business compliance services
    u2013 EH&S industrial hygiene and safety
    u2013 EH&S waste management
    u2022 Research and development Transformation of general recipes
    u2022 Supplier collaboration
    u2013 Procurement of materials and services (Including quality management)
    u2013 Storage tank management
    u2013 E-commerce (Chemical Industry Data Exchange)
    u2022 Enterprise management and support
    u2013 Plant maintenance
    u2013 Investment management
    u2013 Integration of the SAP NetWeaver Portal component
    u2022 Profitability analysis
    More Details
    This section details the most common business scenarios u2013 those that benefit most from the application of best practices.
    Sales and Marketing
    SAP Best Practices for Chemicals supports the following sales and marketingu2013related business processes:
    Sales order processing u2013 In this scenario, SAP Best Practices for Chemicals supports order entry, delivery, and billing. Chemical industry functions include the following:
    u2022 Triggering an available-to-promise (ATP) inventory check on bulk orders after sales order entry and automatically creating a filling order (Note: an ATP check is triggered for packaged material.)
    u2022 Selecting batches according to customer requirements:
    u2022 Processing internal sales activities that involve different organizational units
    Third-party and additional internal processing u2013 In this area, the SAP Best Practices for Chemicals package provides an additional batch production step that can be applied to products previously produced by either continuous or batch processing. The following example is based on further internal processing of plastic granules:
    u2022 Purchase order creation, staging, execution, and completion
    u2022 In-process and post process control
    u2022 Batch assignment from bulk to finished materials
    u2022 Repackaging of bulk material
    SAP Best Practices for Chemicals features several tools that help you take advantage of chemical industry best practices. For example, it provides a fully documented and reusable prototype that you can turn into a productive solution quickly. It also provides a variety of tools, descriptions of business scenarios, and proven configuration of SAP software based on more than 35 years of working with the
    Chemical industry.
    SAP Functions in Detail u2013 SAP Best Practices for Chemicals
    The package can also be used to support external toll processing such as that required for additional treatment or repackaging.
    Tank-trailer processing u2013 In this scenario, SAP Best Practices for Chemicals helps handle the selling of bulk material, liquid or granular. It covers the process that automatically adjusts the differences between the original order quantities and the actual quantities filled in the truck. To determine the quantity actually filled, the tank trailer is weighed before and after loading. The delta weight u2013 or quantity filled u2013 is transmitted to the SAP software via an order confirmation. When the delivery for the sales order is created, the software automatically adjusts the order quantity with the confirmed filling quantity.The customer is invoiced for the precise quantity filled and delivered.
    Supply Chain Planning and Execution
    SAP Best Practices for Chemicals supports supply chain planning as well as supply chain execution processes:
    Supply and demand planning u2013 Via the SAP Best Practices for Chemicals package, SAP enables complete support for commercial and supply-chain processes in the chemical industry, including support for integrated sales and operations planning, planning strategies for bulk material, and a variety of filling processes with corresponding packaging units. The package maps the entire supply chain u2013 from sales planning to material requirements planning to transportation procurement.
    Supplier Collaboration
    In the procurement arena, best practices are most important in the following
    Scenario:
    Procurement of materials and services:
    In this scenario, SAP Best Practices for Chemicals describes a range of purchasing processes, including the following:
    u2022 Selection of delivery schedules by vendor
    u2022 Interplant stock transfer orders
    u2022 Quality inspections for raw materials, including sampling requests triggered
    by goods receipt
    Manufacturing Scenarios
    SAP Best Practices for Chemicals supports the following sales and
    Manufacturingu2013related business processes:
    Continuous production u2013 In a continuous production scenario, SAP Best Practices for Chemicals typifies the practice used by basic or commodity chemical producers. For example, in the continuous production of plastic granules, production order processing is based on run-schedule headers. This best-practice package also describes batch and quality management in continuous production. Other processes it supports include handling of byproducts,co-products, and the blending process.
    Batch production u2013 For batch production,
    SAP Best Practices for Chemicals typifies the best practice used by specialty
    chemical producers. The following example demonstrates batch production
    of paint, which includes the following business processes:
    u2022 Process order creation, execution, and completion
    u2022 In-process and post process control
    u2022 Paperless manufacturing using XMLbased Process integration sheets
    u2022 Alerts and events
    u2022 Batch derivation from bulk to finished materials
    Enterprise Management and Support
    SAP Best Practices for Chemicals also supports a range of scenarios in this
    area:
    Plant maintenance u2013 SAP Best Practices for Chemicals allows for management
    of your technical systems. Once the assets are set up in the system, it focuses on preventive and emergency maintenance. Tools and information support the setup of a production plant with assets and buildings.Revenue and cost controlling u2013 The package supports the functions that help you meet product-costing requirements in the industry. It describes how cost centers can be defined, attached
    to activity types, and then linked to logistics. It also supports costing and settlement of production orders for batch and continuous production. And it includes information and tools that help you analyze sales and actual costs in a margin contribution report.
    The SAP Best Practices for Chemicals package supports numerous integrated
    business processes typical of the chemical industry, including the following:
    u2022 Quality management u2013 Supports integration of quality management concepts across the entire supplychain (procurement, production, and sales), including batch recall and complaint handling
    u2022 Batch management u2013 Helps generate batches based on deliveries from vendors or because of company production or filling, with information and tools for total management of batch production and associated processes including batch  derivation, batch information cockpit, and a batchwhere- used list
    u2022 Warehouse management u2013 Enables you to identify locations where materials
    or batch lots are stored, recording details such as bin location and other storage information on dangerous goods to help capture all information needed to show compliance with legal requirements
    Regards
    Sudheer

  • Best practice for Global Address?

    Good Morning,
    I am new to Cisco firewalls and would like to know what is the best practice for creating an external ip address and port into my network and then redirecting that to a specific machine.  I am thinking of using a global ip address and then only allowing this type of traffic to talk to the specific destnation and on that specific port.  Is this the correct course of action?  Or os there a better or more effecient way of allowing this process using ADSM.
    Troy
    Message was edited by: Troy Currence

    Hi,
    Basically when you are attempting to allow traffic from the external public network to some of your servers/hosts you will either use Static NAT or Static PAT
    Static NAT is when you bind a single public IP address to be used by only one internal host. This is usually the preferred option if you can spare a single public IP address for your server, meaning you probably have a small public subnet from your ISP.
    Static PAT is when you only allocate certain ports on your public IP address and map them to a local port on the host. This is usually the option when you only have a single public IP address that is configured on your ASAs external interface. Or perhaps in a situation when you just want to conserver your public IP addresses even though you might have a few of them.
    In Static NAT case you configure the Static NAT and use the interface ACL to allow the services you require.
    In Static PAT you only create a translation for a specific port/service so only connections to that port are possible. Naturally you will also have to allow those services/ports in the interface ACL just like with Static NAT.
    Again if you can spare the public IP addresses then I would go with Static NAT or if you only have a single or few IP addresses you can consider Static PAT (Port Forward) also.
    I dont personally use ASDM for configurations but can help you with the required CLI format configurations. These can actually be done through ASDM also from the Tools -> Command Line Interface menus at the top.
    Hope this helps
    - Jouni

  • Best practices for ARM - please help!!!

    Hi all,
    Can you please help with any pointers / links to documents describing best practices for "who should be creating" the GRC request in below workflow of ARM in GRC 10.0??
    Create GRC request -> role approver -> risk manager -> security team
    options are : end user / Manager / Functional super users / security team.
    End user and manager not possible- we can not train so many people. Functional team is refusing since its a lot of work. Please help me with pointers to any best practices documents.
    Thanks!!!!

    In this case, I recommend proposing that the department managers create GRC Access Requests.  In order for the managers to comprehend the new process, you should create a separate "Role Catalog" that describes what abilities each role enables.  This Role Catalog needs to be taught to the department Managers, and they need to fully understand what tcodes and abilities are inside of each role.  From your workflow design, it looks like Role Owners should be brought into these workshops.
    You might consider a Role Catalog that the manager could filter on and make selections from.  For example, an AP manager could select "Accounts Payable" roles, and then choose from a smaller list of AP-related roles.  You could map business functions or tasks to specific technical roles.  The design flaw here, of course, is the way your technical roles have been designed.
    The point being, GRC AC 10 is not business-user friendly, so using an intuitive "Role Catalog" really helps the managers understand which technical roles they should be selecting in GRC ARs.  They can use this catalog to spit out a list of technical role names that they can then search for within the GRC Access Request.
    At all costs, avoid having end-users create ARs.  They usually select the wrong access, and the process then becomes very long and drawn out because the role owners or security stages need to mix and match the access after the fact.  You should choose a Requestor who has the highest chance of requesting the correct access.  This is usually the user's Manager, but you need to propose this solution in a way that won't scare off the manager - at the end of the day, they do NOT want to take on more work.
    If you are using SAP HR, then you can attempt HR Triggers for New User Access Requests, which automatically fill out and submit the GRC AR upon a specific HR action (New Hire, or Termination).  I do not recommend going down this path, however.  It is very confusing, time consuming, and difficult to integrate properly.
    Good luck!
    -Ken

  • Help Please!!  Best Practices for building an NDS Project...

    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!!

    Hello Peggy,
    this is my first post but I hope it helps you anyway.
    To learn the SAP "language" I additionally used the a SAP Presentation regarding the SAP JDI.
    https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/documents/a1-8-4/java development infrastructure real world use webinar.pdf
    I think this one is quite useful as an addon to the other links for information you already got. Your name also indicates that your mother-tongue language is German. If so, the german version of the book (Java-Programming with the SAP WAS) is already available for purchase and really useful. Then, you can also use the information provided by the University of Potsdam. They have an introduction about how to setup a track in the SLD and then how to setup SCs.
    http://epic.hpi.uni-potsdam.de/nwlab/SC+Track.html
    Hope this helps...

  • Best practice for creating a new email address to Exchange Server 2010 for share point Library

    Hi,
    Please advise if there is any best practice for the above issue?
    Thanks 
    srabon

    Hi Srabon,
    Hope these are what you want.
    Use a cmdlet to Create a User account and Mailbox in Exchange 2010
    http://technet.microsoft.com/en-us/magazine/ff381465.aspx
    Create a Mailbox for an Existing User
    http://technet.microsoft.com/en-us/library/aa998319(v=exchg.141).aspx
    Thanks
    Mavis
    Mavis Huang
    TechNet Community Support

  • Best practice for integrating a 3 point metro-e in to our network.

    Hello,
    We have just started to integrate a new 3 point metro-e wan connection to our main school office. We are moving from point to point T-1?s to 10 MB metro-e. At the main office we have a 50 MB going out to 3 other sites at 10 MB each. For two of the remote sites we have purchase new routers ? which should be straight up configurations. We are having an issue connecting the main office with the 3rd site.
    At the main office we have a Catalyst 4006 and at the 3rd site we are trying to connect to a catalyst 4503.
    I have attached configurations from both the main office and 3rd remote site as well as a basic diagram of how everything physically connects. These configurations are not working ? we feel that it is a gateway type problem ? but have reached no great solutions. We have tried posting to a different forum ? but so far unable to find the a solution that helps.
    The problem I am having is on the remote side. I can reach the remote catalyst from the main site, but I cannot reach the devices on the other side of the remote catalyst however the remote catalyst can see devices on it's side as well as devices at the main site.
    We have also tried trunking the ports on both sides and using encapsulation dot10q ? but when we do this the 3rd site is able to pick up a DHCP address from the main office ? and we do not feel that is correct. But it works ? is this not causing a large broad cast domain?
    If you have any questions or need further configuration data please let me know.
    The previous connection was a T1 connection through a 2620 but this is not compatible with metro-e so we are trying to connect directly through the catalysts.
    The other two connection points will be connecting through cisco routers that are compatible with metro-e so i don't think I'll have problems with those sites.
    Any and all help is greatly welcome ? as this is our 1st metro e project and want to make sure we are following best practices for this type of integration.
    Thank you in advance for your help.
    Jeff

    Jeff, form your config it seems you main site and remote site are not adjacent in eigrp.
    Try adding a network statement for the 171.0 link and form a neighbourship between main and remote site for the L3 routing to work.
    Upon this you should be able to reach the remote site hosts.
    HTH-Cheers,
    Swaroop

  • Best Practice for link to WebdynPro page in welcome page

    Hi Experts,
        I am new in SAP Portal. I need some guidance from you guys. I have a requirement to create welcome page which is JSP and has a link to a WebdynPro page. I have to put the url in JSP file. So i do not know what kind of URL i should put in the JSP. 
    The problem is if i put the url which i can see in the address bar like 'http://DevServer/WebDynPro/ApplcationA', when i transport it to another server ,for example Production,. The real url might be change to 'http://ProdServer/WebDynPro/ApplcationA'. It may cause the link in JSP can not be worked.
        I would like to ask you the best practice for this case. What url? What configuration?
    Thank you in advance,
    Noppong Jinbunluphol
    P.S. For the JSP, i create it in portal application dc.

    Dear Noppong,
    You can do it with multiple ways like :-
    1. Get the current host name and make complete URL with using host name for the webdynpro iview.
    request = (IPortalComponentRequest) this.getRequest();
    HttpServletRequest req = request.getServletRequest();
    StringBuffer strURL = req.getRequestURL();
    2. Create the KM Document or Link for webdynpro Iview OR Create the WPC Web Page for the webdynpro ivew
    Refer to [http://help.sap.com/saphelp_nw70/helpdata/en/06/4776399abf4b73945acb8fb4f41473/frameset.htm|http://help.sap.com/saphelp_nw70/helpdata/en/06/4776399abf4b73945acb8fb4f41473/frameset.htm]
    [http://help.sap.com/saphelp_nw70/helpdata/en/06/4776399abf4b73945acb8fb4f41473/frameset.htm|http://help.sap.com/saphelp_nw70/helpdata/en/06/4776399abf4b73945acb8fb4f41473/frameset.htm]
    [http://help.sap.com/saphelp_nw70ehp1/helpdata/en/ff/681a4138a147cbabc3c76bde4dcdbd/content.htm|http://help.sap.com/saphelp_nw70ehp1/helpdata/en/ff/681a4138a147cbabc3c76bde4dcdbd/content.htm]
    Hope it will helps
    Best Regards
    Arun Jaiswal

  • Best practice for Spark repeating background image in a SkinnableContainer?

    In my old Flex 3.5 code I would accomplish this by dropping an Image into a Canvas and hitting the Canvas with some css style stuff to get the repeat.  The Image tag had a source property that would take a web address so I could dynamically grab different images from the web based on some conditions.  Little bit more trouble with Flex 4.5 and Spark but I'm trying to get there.
    Here Adobe docs explain how to *embed* a background image:
    http://help.adobe.com/en_US/flex/using/WS422719A4-7849-4921-AF39-57FF567B483B.html#WS063B0 491-B7AB-4b00-A39F-E44310BCB0E0
    They use a BitmapFill object in the skin.
    <!-- background fill -->
        <s:Rect id="background" left="3" top="3" right="3" bottom="3" alpha=".25">
            <s:fill>
                <s:BitmapFill source="@Embed(source='../../assets/myImage.jpg')"/>
            </s:fill>
        </s:Rect>
    Problem is I need to do this without embedding the image.  In my old code I grabbed the image from web (set source property on Image tag to web address).  What's the best practice for achieving this with a skinnable container?  The BitmapFill object used above won't take a web address for a source.
    Thanks in advance.

    Use BitmapImage with a fillMode of repeat:
    <s:BitmapImage source="http://www.google.com/intl/en_com/images/srpr/logo2w.png" width="100%" height="100%" scaleMode="stretch" fillMode="repeat" />

  • Best Practice for Multiple iTunes and One Account?

    My wife and I share our account for our iPhone Applications and Songs in iTunes.
    Can someone point me to a topic that covers a best practice for multiple iTunes syncing?
    I travel a lot and keep my iPhone synced to my Macbook Pro while she uses the workstation at home to sync to. We keep the addresses and contacts and calendars synced through MobileMe, however, I'm trying to find the best way of pushing applications and songs I've bought over to the other PC so they're still around while I'm traveling for her to sync with.
    Thoughts?

    Hi Steve,
    Might be trying for solution for a long time, If i understood your question clear let me clarify you few points.
    You are trying to access the bex query which is designed with the exit's in the background based on the logic and trying to call the entire dimensions and key-figures in a single connection. Then you are trying to map those data in the charts.
    Steve, try to make more connections based upon the logic and split them. use the same query but split them by sales per customer group, sales per day, sales per week by making three different connections and try. You can merge the prompts from all connections.
    Hope this Helps!!!
    Sorry if i misunderstood your question.
    --SumanT

  • Best Practice for Automotive

    Dear All:
    Who has the package of best practice for Automotive? Specially for product traceability and external procurement! Please share with me, thanks in advance.
    Good day
    Tao

    Hi,
    I only find the best practice for automotive external process, you can refer to the following address:
    http://help.sap.com/content/bestpractices/industry/index.htm
    But not find it for product traceability, hope it's useful to you!

  • 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 Data Access

    Good morning!
    I was wondering if someone might give me some advice on some best practices for retrieving data from a SQL server in the cloud via a desktop application?
    I'm curious if I embed into my desktop application the server address (IP, or Domain or whatever) and allow the users to provide their own usernames and passwords when using the application, if there was anything "wrong" with that? Where-in my
    application collects the username and password from the user, connects to a server with that username and password, retrieves the data and uses it in-app.
    I'm petrified of security issues and I would hate to start using a SQL database with this setup only to find out that anyone could download x, y or z and connect to the database and see everything.
    Assuming I secure all of the users with limited permissions, is there anything wrong with exposing a SQL server to the web for my application to use? If so, what and what would be a reasonable alternative?
    I really appreciate any help and feedback!

    There are two options, none of them very palatable:
    1) One is to create a domain, and add the VM and your local box to it.
    2) Stick to a workgroup, but have the same user name and password on both machines.
    In practice, a better option is to create an SQL login that is member of sysadmin - or who have rights to impersonate an account that is member of sysadmin. And for that matter, you could use the built-in sa account - but you rename it to something else.
    The other day I was looking at the error log from a server that apparently had been exposed on the net. The log was full with failed login attempts for sa, with occasional attempts for names like usera and so on. The server is in Sweden - the IP address
    for the login attempts were in China.
    Just so know what you can expect.
    Erland Sommarskog, SQL Server MVP, [email protected]

Maybe you are looking for