HyperV 2012 best practice question (storage of guests)

I was reading this post:
http://blogs.technet.com/b/askpfeplat/archive/2013/03/10/windows-server-2012-hyper-v-best-practices-in-easy-checklist-form.aspx
and I saw two things, one where it says fiber channel is not support and one where is says loopback is not support?
so my question is for a best practice, would local storage (say a local attached raid 10) be considered best practice? or a shared
san lun? and if a san, would virtual stuff like IBMs SVC be supported?

Using a SoFS with SMB3 as a Storage for Hyper-V and SQL Server/Clusters is Microsoft Nr.1 and you will see more and more push for that Design in every next Version.
The TOP Features for me in that Combo is, you get 100% of all Features on Day One when new Version comes out, within Microsoft SMB 3.x are some realy sexy Things in it and you can use all the Standard Ethernet Stuff yu have and know already for years. If
you Need super Speed you can do that with some RDMA Cards, still Ethernet :-) and if you do a Live Migration between any Combo of Clusters and Single Nodes you never Need to move the Data and Config Files :-) they always stay on
\\SoFS\VMs :-)
All Information you need are on http://smb3.info , Jose, my Mr. SoFS collects and blogs about all Features and Step-by-Step Guides to test and prove that even on one sinlge Notebook, very very cool.
As a Backend fot the SoFs you have many choices, from the new Wave of JBODs togehter with Storage Spaces up to the old Style SAN Boxes with or without Special Features. Allways check the Windows Server Catalog for supported Confgs, specially on the JBOD
Side, make sure you get one with R2 Support und also with SES Support (SCSI Enclosure Services ). Jose also Blogs about that Topics very well.
https://blogs.technet.com/b/storageserver/archive/2013/10/19/storage-spaces-jbods-and-failover-clustering-a-recipe-for-cost-effective-highly-available-storage.aspx
http://www.windowsservercatalog.com/results.aspx?&chtext=&cstext=&csttext=&chbtext=&bCatID=1642&cpID=0&avc=10&ava=0&avq=0&OR=1&PGS=25&ready=0
Hyper-V Cluster up to 64 Nodes and SoFS up to 8 Nodes depending on your Scaling Needs and having Storage splitted over separat DataCenters should be a good start :-)
Just let me know of you need some Advice after doing a Design Session.
Udo

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SAP Adapter Best Practice Question for Deployment to Clustered Environment

I have a best practices question on the iway Adapters around deployment into a clustered environment.
According to the documentation, you are supposed to run the installer on both nodes in the cluster but configure on just the first node. See below:
Install Oracle Application Adapters 11g Release 1 (11.1.1.3.0) on both machines.
Configure a J2CA configuration as a database repository on the first machine.
Perform the required changes to the ra.xml and weblogic-ra.xml files before deployment.
This makes sense to me because once you deploy the adapter rar in the next step it the appropriate rar will get staged and deployed on both nodes in the cluster.
What is the best practice for the 3rdParty adapter directory on the second node? The installer lays it down with the adapter rar and all. Since we only configure the adapter on node 1, the directory on node 2 will remain with the default installation files/values not the configured ones. Is it best practice to copy node 1's 3rdParty directory to node 2 once configured? If we leave node 2 with the default files/values, I suspect this will lead to confusion to someone later on who is troubleshooting because it will appear it was never configured correctly.
What do folks typically do in this situation? Obviously everything works to leave it as is, but it seems strange to have the two nodes differ.

What is the version of operating system. If you are any OS version lower than Windows 2012 then you need to add one more voter for quorum.
Balmukund Lakhani
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Best Practices Question: How to send error message to SSHR web page.

Best Practices Question: How to send error message to SSHR web page from custom PL\SQL procedure called by SSHR workflow.
For the Manager Self-Service application we’ve copied various workflows which were modified to meet business needs. Part of this exercise was creating custom PL\SQL Package Procedures that would gather details on the WF using them on custom notification sent by the WF.
What I’m looking for is if/when the PL\SQL procedure errors, how does one send an failure message back and display it on the SS Page?
Writing information into a log or table at the database level works for trouble-shooting, but we’re looking for something that will provide the end-user with an intelligent message that the workflow has failed.
Thanks ahead of time for your responses.
Rich

We have implemented the same kind of requirement long back.
We have defined our PL/SQL procedures with two OUT parameters
1) Result Type (S:Success, E:Error)
2) Result Message
In the PL/SQL procedure we always use below construct when we want to raise any message
hr_utility.set_message(APPL_NO, 'FND_MESSAGE_NAME');
hr_utility.raise_error;
In Exception block we write below( in successful case we just set the p_result_flag := 'S';)
EXCEPTION
WHEN APP_EXCEPTION.APPLICATION_EXCEPTION THEN
p_result_flag := 'E';
p_result_message := hr_utility.get_message;
WHEN OTHERS THEN
p_result_flag := 'E';
p_result_message := hr_utility.get_message;
fnd_message.set_name('PER','FFU10_GENERAL_ORACLE_ERROR');
fnd_message.set_token('2',substr(sqlerrm,1,200));
fnd_msg_pub.add;
p_result_message := fnd_msg_pub.get_detail;
After executing the PL/SQL in java
We have written some thing similar to
orclStmt.execute();
OAExceptionUtils.checkErrors (txn);
String resultFlag = orclStmt.getString(provide the resultflag bind no);
if ("E".equalsIgnoreCase(resultFlag)){
String resultMessage = orclStmt.getString(provide the resultMessage bind no);
orclStmt.close();
throw new OAException(resultMessage, OAException.ERROR);
It safely shows the message to the user with all the data in the page.
We have been using this construct for a long time for all our projects. They are all working as expected.
Regards,
Peddi.

SQL Server 2008 / 2012 - Best practices document

Hello Everyone
Can anybody share SQL Server 2008 / 2012 - Best practices.
Regards
Prashanth
SharePoint Administrator

Take a look here:
http://channel9.msdn.com/Series/Tuning-SQL-Server-2012-for-SharePoint-2013/Tuning-SQL-Server-2012-for-SharePoint-2013-01-Key-SQL-Server-and-SharePoint-Server-Integration-Conce (4 part video series)
https://technet.microsoft.com/en-us/library/hh292622.aspx
Trevor Seward
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This post is my own opinion and does not necessarily reflect the opinion or view of Microsoft, its employees, or other MVPs.

Best practice question -- copy container, assemble it, build execution plan

So, this is a design / best practice question:
I usually copy containers as instructed by docs
I then set the source system parameters
I then generate needed parameters / assemble the copied container for ALL subject areas present in the container
I then build an execution plan JUST FOR THE 4 SUBJECT AREAS and build the execution plan and set whatever is needed before running it.
QUESTION - When i copy the container, should i delete all not needed subject areas out of it or is it best to do this when building the execution plan? I am basically trying to simplify the container for my own sake and have the container just have few subject areas rather than wait till i build the execution plan and then focus on few subject areas.
Your thoughts / clarifications are appreciated.
Regards,

Hi,
I would suggest that you leave the subject areas and then just don't include them in the execution plan. Otherwise you have the possibility of running into the situation where you need to include another subject area in the future and you will have to go through the hassle of recreating it in your SSC.
Regards,
Matt

SAP Adapter Best Practice Question for Migration of Channels

I have a best practice question on the SAP adapter when migrating an OSB project from one environment (DEV) to another (QA).
If my project includes an adapter channel that (e.g., Inbound SAP Proxy listening on a channel), how do I migrate that project to another environment if the channel in the target environment is different.
I tried using the search and replace mechanism in the sbconsole, but it doesn't find the channel name in the jca and wsdl files.
What is the recommended way to migrate from one environment to the other when the channel name changes?

I have a best practice question on the SAP adapter when migrating an OSB project from one environment (DEV) to another (QA).
If my project includes an adapter channel that (e.g., Inbound SAP Proxy listening on a channel), how do I migrate that project to another environment if the channel in the target environment is different.
I tried using the search and replace mechanism in the sbconsole, but it doesn't find the channel name in the jca and wsdl files.
What is the recommended way to migrate from one environment to the other when the channel name changes?

Storage Server 2012 best practices? Newbie to larger storage systems.

I have many years managing and planning smaller Windows server environments, however, my non-profit has recently purchased
two StoreEasy 1630 servers and we would like to set them up using best practices for networking and Windows storage technologies. The main goal is to build an infrastructure so we can provide SMB/CIFS services across our campus network to our 500+ end user
workstations, taking into account redundancy, backup and room for growth. The following describes our environment and vision. Any thoughts / guidance / white papers / directions would be appreciated.
Networking
The server closets all have Cisco 1000T switching equipment. What type of networking is desired/required? Do we
need switch-hardware based LACP or will the Windows 2012 nic-teaming options be sufficient across the 4 1000T ports on the Storeasy?
NAS Enclosures
There are 2 StoreEasy 1630 Windows Storage servers. One in Brooklyn and the other in Manhattan.
Hard Disk Configuration
Each of the StoreEasy servers has 14 3TB drives for a total RAW storage capacity of 42TB. By default the StoreEasy
servers were configured with 2 RAID 6 arrays with 1 hot standby disk in the first bay. One RAID 6 array is made up of disks 2-8 and is presenting two logical drives to the storage server. There is a 99.99GB OS partition and a 13872.32GB NTFS D: drive.The second
RAID 6 Array resides on Disks 9-14 and is partitioned as one 11177.83 NTFS drive.
Storage Pooling
In our deployment we would like to build in room for growth by implementing storage pooling that can be later
increased in size when we add additional disk enclosures to the rack. Do we want to create VHDX files on top of the logical NTFS drives? When physical disk enclosures, with disks, are added to the rack and present a logical drive to the OS, would we just create
additional VHDX files on the expansion enclosures and add them to the storage pool? If we do use VHDX virtual disks, what size virtual hard disks should we make? Is there a max capacity? 64TB? Please let us know what the best approach for storage pooling will
be for our environment.
Windows Sharing
We were thinking that we would create a single Share granting all users within the AD FullOrganization User group
read/write permission. Then within this share we were thinking of using NTFS permissioning to create subfolders with different permissions for each departmental group and subgroup. Is this the correct approach or do you suggest a different approach?
DFS
In order to provide high availability and redundancy we would like to use DFS replication on shared folders to
mirror storage01, located in our Brooklyn server closet and storage02, located in our Manhattan server closet. Presently there is a 10TB DFS replication limit in Windows 2012. Is this replicaiton limit per share, or total of all files under DFS. We have been
informed that HP will provide an upgrade to 2012 R2 Storage Server when it becomes available. In the meanwhile, how should we designing our storage and replication strategy around the limits?
Backup Strategy
I read that Windows Server backup can only backup disks up to 2TB in size. We were thinking that we would like
our 2 current StoreEasy servers to backup to each other (to an unreplicated portion of the disk space) nightly until we can purchase a third system for backup. What is the best approach for backup? Should we use Windows Server Backup to be capturing the data
volumes?
Should we use a third party backup software?

Hi,
Sorry for the delay in reply.
I'll try to reply each of your questions. However for the first one, you may have a try to post to Network forum for further information, or contact your device provider (HP) to see if there is any recommendation.
For Storage Pooling:
From your description you would like to create VHDX on RAID6 disks for increasment. It is fine and as you said it is 64TB limited. See:
Hyper-V Virtual Hard Disk Format Overview
http://technet.microsoft.com/en-us/library/hh831446.aspx
Another possiable solution is using Storage Space - new function in Windows Server 2012. See:
Storage Spaces Overview
http://technet.microsoft.com/en-us/library/hh831739.aspx
It could add hard disks to a storage pool and creating virtual disks from the pool. You can add disks later to this pool and creating new virtual disks if needed.
For Windows Sharing
Generally we will have different sharing folders later. Creating all shares in a root folder sounds good but actually we may not able to accomplish. So it actually depends on actual environment.
For DFS replication limitation
I assume the 10TB limitation comes from this link:
http://blogs.technet.com/b/csstwplatform/archive/2009/10/20/what-is-dfs-maximum-size-limit.aspx
I contacted DFSR department about the limitation. Actually DFS-R could replicate more data which do not have an exact limitation. As you can see the article is created in 2009.
For Backup
As you said there is a backup limitation (2GB - single backup). So if it cannot meet your requirement you will need to find a third party solution.
Backup limitation
http://technet.microsoft.com/en-us/library/cc772523.aspx
If you have any feedback on our support, please send to [email protected]

Best Practice Question

I have 3 Areas for my DWH
The first area is Staging then validation and core
Staging is just do load date from the source systems
validation is to validate data (every city has to have a countrie ....)
core is my DWH shema.
The First step in ETL is to load the data from core to validation, let's say my GEO_DIM Dimension goes to Countries, Cities and Regions in core. Additionaly I build a CRC SUM when I downlaod from Core to Validation and store the CRC Checksum in a Staging table.
The second step is to load target from the source systems to staging, but only those date that are non equal to the previous downloadet CRC schecksum, so only changed or new data going to staging.
The third step is do load that new/changed data from staging to core and proof some dependences. It's just validation.
My Question is, what is the best practic to bring three tables (Countries, cities and region) to one Dimension
thanks and regards
Andreas

Andreas,
I guess the correct is depends... Without kidding, are you planning to use a flat star table for this dimension? If that is the case you would be joining the sources together and loading this into the table.
Now this sounds way to simple, so I guess there is something more to the question...
Jean-Pierre

Informatica and Essbase Best Practice questions

We now have the Informatica adapter for Essbase installed and working. We have been able to get Informatica to upload data successfully. Now I have a few questions that I have not been able to find answers to in any documentation or forums for Informatica or Essbase. I have submitted these same questions to the Informatica Support but thought I would also post the questions here to see if many folks are using Informatica against Essbase.
We are using:
Informatica 8.6.1 (Linux)
Essbase 11.1.1.3 (Windows 2003)
1) I can see in Informtica that when we load data to Essbase (Target) it gives me the option to run a calc script AFTER it loads the data. However, if I need to run a Calc script BEFORE the load to Essbase (Target) what is the best practice? The work around I have found was to add the same session twice and for the 1st instance select the option to 'ONLY RUN THE CALC SCRIPT' on the mapping tab. The problem with this is the log shows that it will still run the query against the Source tables. This will impact run times and double to querying against the Source database. What is the Best Practice and proper way to build the workflow to Run a Calc Script BEFORE the load?
2)Since you do not see the list of Calc Scripts for Essbase in Informatica (you have to manually type the Calc name), If I want to run the 'Default' calc for Essbase what is the syntax to run the 'Default' Calc Script? Tried 'Default' but didn't seem to work.
3)I have other tasks in Essbase I want to do before actually having Informatica load the data. I would like to run the MAXL commands via a Command task. What is the Best Practice for doing this and the syntax to run MAXL commands in a Command Task in Informatica? I previously had Shell scripts built on the Informatica server that would be kicked off within Informatica, but we are trying to move away from shell scripts and instead have the scripting codes IN the workflows/sessions to make it easier to review the code and follow the logic, rather than having to find the scripts and open each of them.
Any assistance you have with the two products working together I would GREATLY appreciate it!
Robert

AS i know addUser(User user){ ... } is much more useful for several reasons:
1.Its object oriented
2.its easy to write , because if Object has many parameters its very painful to write method with comma seperated parameters

Best Practice Question on Heartbeat Network

After running 3.0.3 a few weeks in production, we are wondering if we set up our Heartbeat /Servers correctly.
We have 2 servers in our Production Server pool. Our LAN, a 192.168.x.x network, has the Virtual IP of the Cluster (heartbeat), the 2 main IP addresses of the servers, and a NIC assigned to each guest. All of this has been configured on the same network. Over the weekend, I wanted to separate the Heartbeat onto a new network, but when trying to add to the pool I received:
Cannot add server: ovsx.mydomain.com, to pool: mypool. Server Mgt IP address: 192.168.x.x, is not on same subnet as pool VIP: 192.168.y.y
Currently, I only have one router that translate our WAN to our LAN of 192.168.x.x. I thought the heartbeat would strictly be internal and would not need to be routed anywhere and just set up as a separate VLAN and this is why I created 192.168.y.y. I know that the servers can have multiple IP addresses, and I have 3 networks added to my OVM servers. 192.168.x.x, 192.168.y.y and 192.168.z.z. y and z are not pingable from anything but the servers themselves or one of the guests that I have assigned that network to. I can not ping them directly from our office network, even through the VPN which only gives us access to 192.168.x.x.
I guess I can change my Sever Mgt IP away from 192.168.x.x to 192.168.y.y, but can I do that without reinstalling the VM server? How have others structured there networks especially relating to the heartbeat?
Is there any documentation/guides that would describe how to set up the networks properly relating to the heartbeat?
Thanks for any help!!

Hello user,
In order to change your environment, what you could do is go to the Hardware tab -> Network. Within here you can create new networks and also change via the Edit this Network pencil icon what networks should manage what roles (i.e. Virtual Machine, Cluster Heartbeat, etc). In my past experience, I've had issues changing the cluster heartbeat once it has been set. If you have issues changing it, via the OVM Manager, one thing you could do is change it manually via the /etc/ocfs2/cluster.conf file. Also, if it successfully lets you change it via the OVM Manager, verify it within the cluster.conf to ensure it actually did your change. This is where that is being set. However, doing it manually can be tricky because OVM has a tendency to like to revert it's changes back to its original state say after a reboot. Of course I'm not even sure if they support you manually making that change. Ideally, when setting up an OVM environment, best practice would be to separate your networks as much as possible i.e. (Public network, private network, management network, clusterhb network, and live migration network if you do a lot of live migrating, otherwise you can probably place it with say the management network).
Hope that helps,
Roger

Best practice question for Bounded task flows

We are new to Jdeveloper/ADF and I was wondering if we should always try to use a bounded task flow for our applications... is this considered the best way to develop an app? even the small single page ones?
Thanks in advance.

Hi,
let me turn teh question around: How many tools do you have at home beside of a hammer ? In other words, its the problem you need to solve (and use cases are problems) that should determine the use of bounded task flows and its granularity. Note that for each use case the bounded task flow makes a good candidate for delivering it. Doesn't mean that every single page needs to go into its own task flow. For general bounded best practices have a look here
http://www.oracle.com/technetwork/developer-tools/jdev/adf-task-flow-design-132904.pdf
Frank

Bean best practice question

Simple questions (hopefully), I know how to code this but just want some advice on the best way to do the following:
1. User enters data into HTML form and submits
2. Some Java at the backend grabs these details and emails them off somewhere
I am thinking of doing the following, but whats the best way?
1. HTML form submits and data is sent directly to a JavaBean (FormBean.java)
2. FormBean.java contains standard getters/setters but also contains a method called sendMail(), is this bad practice? Do I need a second Bean sendMail.java? Or is this completely the wrong way to do things i.e. should I do this entirely in a servlet with only 1 bean to grab the data (FormBean) and then access from servlet?
Just a bit confused on whats best practice for this stuff?
Thanks!

2. FormBean.java contains standard getters/setters but also contains a method called sendMail(), is this bad practice? Do I need a second Bean sendMail.java? A better approach is this way
a) Have all the form data in the form bean
b) Write sendMail in a all together different class, as action.
c) Send the form bean as a parameter to sendMail for processing and sending an email
This way your sendMail() will become a kind of a service. Tomorrow you might have some other data, which you will have to send it in an email. In that case, you just reuse sendMail() method. Otherwise, if you have sendMail() in form bean itself, then if there are many form beans, then you would have to write sendMail() in every form bean, which is a bad practice. One principle of OOAD is to separate the functionality, which is redundant in your classes and make it as a separate module. If there are changes to the sendMail() functionality then, by having it in one module, you only have to change it at one place.
Or is this completely the wrong way to do things i.e. should I do this entirely in a servlet with only 1 bean to grab the data (FormBean) and then access from servlet?You can have a servlet which acts like a controller, which receives the request parameters, constructs the form bean and invokes appropriate Action (in your case sendMail()). This is same as an MVC framework. Instead of you re-inventing the wheel to create a servlet controller, form bean, action etc. You could use one of the several MVC frameworks available in the market, such as Struts or Spring MVC.

Group by best practice question

Consider this example:
TABLE: SALES_DATA
firm_id|sales_amt|d_date|d_data
415|45|20090615|Lincoln Financial
415|30|20090531|Lincoln AG
416|10|20081005|AM General
416|20|20080115|AM General Inc.
I want the output to be grouped by firm_id with the sum of sales_amt and the d_data
that corresponds to the latest d_date (i.e. max(d_date))
Proposed query:
select firm_id, sum(sales_amt) total_sales, substr(max(d_data), instr(max(d_data), '~') + 1) firm_name from (
select firm_id, sales_amt, d_date || '~' || d_data from sales_data
group by firm_id
output is as expected:
firm_id|total_sales|firm_name
415|75|Lincoln Financial
416|30|AM General
I know this works but my QUESTION is: is there a better way to do this and is the above approach to concatenate columns when you want to aggregate multiple columns against any best practices.
Thanks very much!

Here's a way that uses analytics (I just like them):
SQL> select * from sales_data;
             FIRM_ID            SALES_AMT D_DATE               D_DATA
                 415                   45 15-JUN-2009 00:00:00 Lincoln Financial
                 415                   30 31-MAY-2009 00:00:00 Lincoln AG
                 416                   10 05-OCT-2008 00:00:00 AM General
                 416                   20 15-JAN-2008 00:00:00 AM General Inc.
SQL> select firm_id, sum_amt, d_data
2 from
3 (
4     select firm_id, d_data
5           ,sum(sales_amt) over (partition by firm_id) sum_amt
6           ,row_number() over (partition by firm_id order by d_date desc) rn
7     from   sales_data
8 )
9 where rn = 1
10 ;
             FIRM_ID              SUM_AMT D_DATA
                 415                   75 Lincoln Financial
                 416                   30 AM General

BEST PRACTICE QUESTION: XI or direct R/3 RFC?

We are creating an interface from R/3 to an externally facing (internally built) website.
Question: What is the best practice defining whether or not we should pivot thru XI? This is a single interface that will not be reused; there would be no mapping within XI; and the call must be real-time and syncronous.
Thanks much for your knowledge/assistance.

Hi,
the best practice is :
don't use XI for sync interfaces
but if the flow from RFC to this website will be very ocasional
and you don't want to play with receving RFC data on the website
then you can use it just to help yourself with an adapter
Regards,
Michal Krawczyk

Best Practices: Question about Passing DataSet to Crystal through C#

I have used the tutorial provided by Business Objects and have successfully passed a dataset from C# code to Crystal Reports.
I have a few questions about "best pratices" though.
It appears that when passing the dataset to crystal then you no longer have the ability to put SQL Expressions in the report anymore otherwise errors will occur.
So, I'm trying to come up with a way to have a custom field in the SELECT statement and have it show up on the report as a field. So, in the below example I created a custom SQL field called TIMES7 in the query.
"Select CLM_ID, CLM, PAID_111X, *(PAID111X * 7) As TIMES7*_ From WIKI.MULCRICKET WHERE CLM_ID < 5"
If I create a formula field in Crystal and set it's value to {MULCRICKET .TIMES7} then it works like a hybrid SQL Expression at run-time.
This does work but has issues because the database field doesn't really exist in the design environment which causes error when the formula is saved. But it does work at run-time.
I was wondering if their was a best practice for this?

So why are you using a formula that doesn't work? If it errors in the designer it's telling you it's not supported.
Drop the formula into a filed and hide it if you don't want it displayed, this way it gets into the record selection formula.
"Best Practices" is don't use formulae that won't verify in the Designer. "If it doesn't work in the designer it won't work in code"
If you need to add an "unknown" field at run time then use RAS to insert the field.

HyperV 2012 best practice question (storage of guests)

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