Archive for April, 2009

Why you all want to use DFS – Part 2 Replicating data with DFS-R

When we talk about replicating data between two or more servers, one think to keep in mind is the replication technology. From Windows Server 2003 R2 and later, RDC is used as replication technology. RDC has the ability to do delta replication, only replicate the changes to a file, and that is a great advantage, when we replicate data over WAN lines, with a small bandwidth. Still the whole file has to be replicated once.. when it’s created. But Microsoft has a solution for the too….

When you have a Windows Server Enterprise as one of the replication partners, cross file RDC will be available! So what is cross file RDC? That’s hard to explain, but I’ll try. Let’s say we have two servers, serverA and serverB. The servers replicate files between them and one is running Enterprise edition, the other one standard edition.

A user copies an old PowerPoint document to a new document at serverA, and edit it. The user changes a few thing and add a few slides and then exits and saves the document. Now the document will be replicated to serverB, but since serverB already knows the original document, serverB will only ask for the changes to the already known document, and the create the new document.
Keep in mind that Cross-file replication will be used if you have only one Windows Enterprise Edition in your replication technology.

When replication files between servers we often talk about two methods, data publishing and data collection.

Data Collection is used for collecting data into a central datacenter for backup and redundancy reasons. So if a server fails at the Branch Office, the user is redirected to the replicated data at the central datacenter. When and if the Branch server comes online again, the Branch User is redirected back to the Branch Server. See below.




Data Publishing is used to publish data to servers and for backup and redundancy reasons. The data are present at the local Branch Servers to secure a good user experience, for both local Branch Users and users travelling between Branch Offices. So, if a user changes files in Branch1 and the travels to Branch2. Then the changed files are replicated to all Branch Servers the thereby securing a good user experience because the user don’t have to open files over the WAN link. It’s all controlled by DFS.

Using DFS to provide the same entrance to data for all users, will result in better productivity! AND in Windows Server 2008 Access Based Enumeration (ABE) is a build in feature, hiding the folders that users do not have access to and thereby delivers a greater overview.

Three things to remember:
1. If you want to replicate files, using DFSR, to a central file cluster (Microsoft failover Clustering), that’s NOT possible before we get Windows Server 2008 R2!

2. When you publish data to two or more servers, conflicts may occur, if users changes the same file at different servers (replicas). DFSR will handle the conflict (see later part) but the user who saves the file last, will always win and the one who saves first, lose. This issue must be solved in future versions of Windows Server.

3. Windows Server 2008 R2 and Windows 7 introduces BranchCache and that brings more opportunities (More about that at a later time)

Next part will cover creating a DFS replication

Categories: Windows Server

MMS 2009 Day 1 and 2

It’s time for an update from Las Vegas!
I arrived at Las Vegas sunday morning after a terrible flight to Chicago/Las Vegas, no further comments needed 😉

After a relaxing sunday, monday morning, it was time to register at MMS and get on going with some instructor led labs (ILL) about Powershell (for absolute beginners…) and Windows 7 deployment. After the ILL and sessions Microsoft Denmark was host for a drink or two ;-). This Microsoft Denmark meeting is held every day after the sessions.

Today, the morning started with running 5 km in Las Vegas, with Brian Lauge from Microsoft Denmark…quite hard, it’s so dry!
After the keynote I attended the one and only “State of the union”, certainly a must when attending MMS and I was not disappointed. We saw the next version of Configuration Manager and got some very good information.
Then I attended an awesome session about how Microsoft IT uses OSD for deploying Windows 7, one of the best sessions I have ever seen at a Microsoft conference! After a session about driver handling, I finished the day with a Hyper-V v2.0 session…IT ROCKS, look out Vmware, it’s so cool.
Tonight I will spend with our Microsoft Partner Account Manager, Lars Aabye, he usually finds a good place to eat.

That’s all for now!

Categories: MMS

It’s time! – for Microsoft Management Summit 2009 in Las Vegas

Saturday I’m travelling to US to attend MMS 2009 and I’m looking forward to attend this year as it has been 2 years since last time (San Diego, 2007). My primary focus this week will be, Windows Client and Server deployment, but I’ll also try to fir in some sessions about Hyper-V v2.0 and Windows Server 2008 R2 generally.
The week will for sure inspire me as always! Now my only concern is, if I’ll get some time left over to blog about MMS…..let wait and see…

Categories: MMS

Windows 7 RC at May 5, 2009

The following info is available at our Microsoft Partner Site.

We are pleased to announce that Windows 7 Release Candidate (RC) is available. Windows 7 RC is the prerelease version of Windows 7. Since this is not the final release, your PC will gather and send information to Microsoft engineers to help them check the fixes and changes made based on testing of Windows 7 Beta.
Test-drive Windows 7 RC today to see for yourself—and to show your colleagues and customers—how Windows 7 delivers improved management, security, reliability, and performance.
Download Windows 7 RC
Partners: If you have a subscription to MSDN or TechNet, you can download Windows 7 RC now. Otherwise, you can download Windows 7 RC starting May 5, 2009.

NOTE: Can’t find the info anymore ;-(

Categories: Windows Client

Infrastructure days by EG A/S

I have spend some time lately, trying to create a nice agenda for my company’s Infrastructure days in May. All Danish companies are allowed access for free. Right now I cannot reveal the entire program but these products will be covered for sure:

Windows 7
Windows Server 2008 R2
System Center Configuration Manager
System Center Operation Manager
Exchange Server 2007
Office Communication Server R2
Office Sharepoint Server 2007
Public Key Infrastructure (PKI)

A colleague and I will present the keynote about Windows 7 and Windows Server 2008 R2, before we continue with the breakout sessions. Most sessionspeakers will be from EG A/S. Later I will post the whole program.

Categories: Uncategorized