Sanity check - Best practice for network configuration

Basic configuration is this:
Physical server has two interfaces. Two different networks. Generically we reference them as Front End and Back End
Back End is dedicated to storage (nfs from netapp or Sun 74xx)
xenbr0 associated with eth0 (front end)
xenbr1 associated with eth1 (back end)
For each Virtual Machine, have been creating two interfaces; vif0 with xenbr0 and vif1 with xenbr1
The desire is to have all disk I/O use the vif1 -> xenbr1 -> eth1 path. So far it seems to be working that way.
Questioning the setup because we have seen this sort of error when shutting down a VM
nfs: server axqntap1 not responding, still trying
In case it matters, mount options inside the vm are: rw,bg,hard,intr,timeo=600,proto=tcp,vers=3,rsize=32768,wsize=32768
Any advice, ideas? Are we all wrong with the bridge config? Mount options?
Thank you - Randall

Shutdown applications within the guest.
Either power off from Oracle VM Manager or 'xm shutdown xxx' from the command line
It is possible one or more files could be open when the shutdown is initiated.
Have found at least one case of misconfigured IP which would have resulted in the disk access being via the 'Front End' interface rather than the Back End.
Thanks

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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.

Best practices for network design on WLC 2504 and 5508

Dear all:
I'm looking for some recommendations on WLC 2504 and 5508 about the the following:
Maximum amount of AP per port
The scenario when to use all ports in both WLC
Maximum number of clients(users) per port
Bandwidth comsumption of management vs data in order to assign one port for management
I've just found this:
Cisco 5508 controllers have eight Gigabit Ethernet distribution system ports, through which the controller can manage multiple access points. The 5508-12, 5508-25, 5508-50, 5508-100, and 5508-250 models allow a total of 12, 25, 50, 100, or 250 access points to join the controller. Cisco 5508 controllers have no restrictions on the number of access points per port. However, Cisco recommends using link aggregation (LAG) or configuring dynamic AP-manager interfaces on each Gigabit Ethernet port to automatically balance the load. If more than 100 access points are connected to the 5500 series controller, make sure that more than one gigabit Ethernet interface is connected to the upstream switch.
http://www.cisco.com/c/en/us/td/docs/wireless/controller/6-0/configuration/guide/Controller60CG/c60mint.html
Thanks for your help.

The 5508-12, 5508-25, 5508-50, 5508-100, and 5508-250 models allow a total of 12, 25, 50, 100, or 250 access points to join the controller.
This is an old document. 5508 can now support up to 500 APs if you run firmware 7.X. 2504 can support up to 75 APs if you run firmware 7.4.X.
I'm looking for some recommendations on WLC 2504 and 5508 about the the following:
Best practice and recommendation is to LAG all ports so you will be able to form a link redundancy. If one link goes down, you have other link to push traffic.

Best Practice for Networking in UCS required

Hi
We are planning to deploy UCS n our environment. The Fabric Interconnects A and B will need to connect to pair of Catalyst 4900 M switch. Whats is the best practice to connect? How should the 4900 switch be configured? Can I do port channel in UCS?
Appreciate your help.
Regards
Kumar

I highly recommend you review Brad Hedlund's videos regarding UCS networking here:
http://bradhedlund.com/2010/06/22/cisco-ucs-networking-best-practices/
You may want to focus on Part 10 in particular, as this talks about running UCS in end-host mode without vPC or VSS.
Regards,
Matt

SAP Best Practices for SSO Configuration

Hello There,
Are there any SAP Best Practices available for SSO Configuration. If so, Kindly help me with those..
And also any Third party tools available in the market for SSO Configuration..
Appriciate your Help on this.. Thanks in advance.
Regards,
Pranay S
Edited by: Pranay Subedari on Apr 29, 2011 9:12 AM

Hello,
Types on the SSO are classified with the systems involved in configuration (i.e.) SSO between ABAP Stack and Java stack or LDAP, OS
Refer the link for more details [Document Deleted]
Regards,
Anand
Message was edited by: Jason Lax

OSB: What is best practice for reading configuration information

I'm trying to establish the best way to utilise configuration information within OSB. At present I have a standard Java style properties file and Java callout to get certain information and I have also been experimenting with Dynamic Routing using an XML based Xquery resource.
The latter appears to me the best approach and is described on page 3-40 of the OSB User Guide but it appears to be configurable only from the OSB console and not as a resource from within Workshop. Ideally I'd like to configure an XML resource file that is loaded from disk at OSB startup and then be able to use that via an XQuery.
How have other people addressed the issue of getting access to parameter/control values at run time?

Can you please elaborate a little on what you mean by making it available "via a OSB Server URL" What I have done:
1) Created simple web application in domain directory.
Sample web.xml
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>Sample</display-name>
<welcome-file-list>
<welcome-file>properties.xml</welcome-file>
</welcome-file-list>
</web-app>
2) Deploy this web application in exploded format using weblogic console(http://localhost:7001/console) in the OSB domain instance.
3) properties.xml is available via http://localhost:7001/Sample
4) Use the above URL in your service callout.
and how this avoids File IO and how it is cached? I'm not sure what you mean here.If we are using Java callout , we have to create File and close the File handle every time. There is this over head in creating/reading file in java every time java callout is used. This over head can be avoided if the XML is available over http. I'm quite sure that weblogic server will cache this XML file by default (What use is webserver if it cannot cache static content?), as this is not dynamic content. Weblogic Server forums will be the right place to get conformation on how to configure caching with web application..
Thanks
Manoj
Edited by: mneelapu on Jul 1, 2009 8:46 AM

Is there any best practice for printer configuration for test environment?

My Oracle ebs test environment has a scheduled refresh period where it will be refreshed with production test data and configuration time to time for BA, Dev to work on their enhancement.
However, all the printer configurations are still pointing to production ones after refreshed, which means whenever there is a testing on-going, the doc / label / invoices will be printed to production printer.
May I know if there is a way to globally change all the printer setup for the test environment, so that nothing will be directly to production?... Please assist.
(currently, the only way is to change one by one and only if you are aware of it...)
In case your organization has any other strategy on this matter, pls share also... Thanks a lot.

user6775047 wrote:
My Oracle ebs test environment has a scheduled refresh period where it will be refreshed with production test data and configuration time to time for BA, Dev to work on their enhancement.
However, all the printer configurations are still pointing to production ones after refreshed, which means whenever there is a testing on-going, the doc / label / invoices will be printed to production printer.
May I know if there is a way to globally change all the printer setup for the test environment, so that nothing will be directly to production?... Please assist.
(currently, the only way is to change one by one and only if you are aware of it...)
In case your organization has any other strategy on this matter, pls share also... Thanks a lot.If you do not want to use same printers then you have to it to point to the (TEST/BA Printers) after you are done with Rapid Clone. Any new printers need to be added manually (just the same way you defined you PROD printers) -- Rapid Clone Documentation Resources For Release 11i and 12 [ID 799735.1]
If you want to edit the configuration, you could use FNDLOAD to download printers definition from the source instance, update the ldt file and use FNDLOAD to upload printers definitions.
Is It Possible To Download/Upload Printer Definitions Using Fndload [ID 432616.1]
Tips About FNDLOAD [ID 735338.1]
Thanks,
Hussein

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 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

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

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 setting up users on a small office network?

Hello,
I am setting up a small office and am wondering what the best practices/steps are to setup/manage the admin, user logins and sharing privileges for the below setup:
Users: 5 users on new iMacs (x3) and upgraded G4s (x2)
Video Editing Suite: Want to connect a new iMac and a Mac Pro, on an open login (multiple users)
All machines are to be able to connect to the network, peripherals and external hard drive. Also, I would like to setup drop boxes as well to easily share files between the computers (I was thinking of using the external harddrive for this).
Thank you,

Hi,
Thanks for your posting.
When you install AD DS in the hub or staging site, disconnect the installed domain controller, and then ship the computer to the remote site, you are disconnecting a viable domain controller from the replication topology.
For more and detail information, please refer to:
Best Practices for Adding Domain Controllers in Remote Sites
http://technet.microsoft.com/en-us/library/cc794962(v=ws.10).aspx
Regards.
Vivian Wang

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

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

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

Sanity check - Best practice for network configuration

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