My planned testenvironment

To answer some question on the testsystems I use. I want to give you a short overview about my planned testenvironement and which systems are currently in place.

Currently in place
USB Backupdisks
Switche, Firewall and Router
Planned until end 2014
Synology Storage

Physical Environment (Storage, Switche & Hyper-V Hosts)


Virtual Network & Converged Networking

Testing a Synology RS2414+ Part# 1 – Story and System

As some of you know, I currently build up small homelab for the Windows Server User Group Berlin and my studies.

What I miss so far is a good and keen storage system. After some research and talking with friends and coworkers, I decided to check out Synology.

So I asked Synology if they could lent me a system with four or more disk and Windows Server 2012 and R2 cluster support.

After a few days I got a mail from Synology Product Manager Phillip Rankers, who offered me to lent me a Synology RS2414+. So that gives me the opportunity to test it a few weeks.

Synology is no classic enterprise Storage vendor like Dell, HP, NetApp or EMC but they offer great NAS Systems. To learn more about Synology click here.

At first I want to tell you something about the techspecs of the system.

CPU Model Intel Atom
CPU Frequency Dual Core 2.13 GHz
System Memory 2 GB DDR3
Memory Module Pre-installed 2 GB X 1
Total Memory Slots 2
Memory Expandable up to 4 GB (2 GB X 2)
Drive Bay(s) 12
Max. Drive Bays with Expansion Unit 24
Compatible Drive Type
  • 3.5″ SATA(III) / SATA(II) HDD
  • 2.5″ SATA(III) / SATA(II) HDD
  • 2.5″ SATA(III) / SATA(II) SSD
Max. Internal Capacity 72 TB
External Ports
USB 2.0 Port 2
USB 3.0 Port 2
Expansion Port 1
File System
Internal Drives EXT4
External Drives
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+
Size (Height X Width X Depth) 88 mm X 445 mm X 570 mm
Weight 12.2 kg <- I have this model
14.2 kg (for RP model) <- longer version
LAN Number (RJ45) Gigabit X 4
Link Aggregation
Wake on LAN/WAN
System Fan 80 mm X 80 mm X 4 pcs
Easy Replacement System Fan
Wireless Support (dongle)
Noise Level 40.5 dB(A)
42.2 dB(A) (for RP model)
Power Recovery
Scheduled Power On/Off
Power Supply Unit / Adapter 400W
2 X 400W (for RP model)
AC Input Power Voltage 100V to 240V AC
Power Frequency 50/60 HZ, Single Phase
Power Consumption 105W (Access)
43W (HDD Hibernation)
125W (Access, for RP model)
57W (HDD Hibernation, for RP model)
Redundant Power Supply (for RP model)
Warranty 3 Years

The price for that system without disks and expansion unit starts at around 1.500,00€. 

So on the first view, the system looks quit nice and is easy to understand. Synology staff shows an outstandig performance in customer handling and customer engagement.

I will keep you posted how my testing goes on.


Free ebook: Microsoft Azure Media Services Guidance

Source:  Microsoft

You can download the free ebook here.

This guide describes how to design and build a video-on-demand application that uses Media Services. It provides an end to end walkthrough of a Windows Store application that communicates with Media Services through a web service, and explains key design and implementation choices. In addition to the Windows Store application, the guide also includes client applications for Windows Phone, web, iOS, and Android devices.

Me named as one of “THE 10 MOST CREATIVE IT INFLUENCERS OF TODAY !” by @IBRemarketing

A few weeks ago I recieved a mail from IB Remarketing. That ask me to answer some questions. The questions where very exciting and so I answer.

Two days ago I got a tweet that I was named as #8 of 10 most creative IT influencers of today.

It is such an honore for me to be seen in the same row like Ravicanth Changanti and Adam Harris.

If you want to see the other or read more please click here.


Update 2 for Windows Azure Pack vailable

Download the update here.


Issues that are fixed in this update

Issue 1
The PowerShell cmdlets Get-MgmtSvcSubscriptionGet-MgmtSvcPlan and Get-MgmtSvcAddOn cannot retrieve a Subscription, a Plan, or AddOn through a specific Subscription, Plan, or AddOn ID, respectively.

Symptoms When you use these PowerShell cmdlets to retrieve any of these three objects, you notice that the command allows only the retrieval operation through the specific name of the objects, that you cannot retrieve base on a specific ID.
Resolution Now the parameter with a corresponding ID can be used to retrieve the corresponding object.

Issue 2
Usage Collector Service loses its configuration after Windows Azure Pack Update 1 is applied.

Symptoms When you deploy Update 1 over an existing deployment by having the Usage Collector Service configured and fully functional, you notice that the Usage Service stops working.
Resolution This issue does not occur in Update 2. The Usage Service configuration is preserved and no manual steps are required.

Issue 3
The Plan Creation Event provides NULL for the Plan Display Name to Services registered to receive this notification.

Symptoms For any Service that is registered to receive notifications, the Plan Display Name is passed as NULL when a Plan Creation event is generated.
Resolution In Update 2, the Display name value is passed instead of NULL.

Issue 4
The Web Application Gallery Service generates a large amount of temp files in its Temp folder.

Symptoms Every time that the WebAppGallery service restarts, it creates a new temp folder. The temp folder stores the cached feeds that contains the Metadata of the available gallery applications and their dependencies and the actual application packages. The service is scheduled to restart every 1,740 minutes. This causes the growing number of temp files over time.
Resolution In Update 2, the Display name value is passed instead of NULL.

Issue 5
Resizing dynamic memory virtual machines through machine profiles causes an error when the new maximum memory exceeds the original maximum memory. Also, changing between static to dynamic or vice versa in the machine profile results in an error.

Symptoms When a tenant user sets the value of the dynamic memory virtual machine to a value that is greater than the original maximum value, an error is generated and the operation fails.
Resolution This process is now possible in Update 2 and no errors are generated.

Issue 6
Active Directory was not enabled for Windows Azure Pack WebSites Resource Provider.

Symptoms Administrators had no way to configure WebSites Clouds to use Active Directory. Tenants have no way of enabling Active Directory Account Management and Authentication for their websites.
Resolution In Update 2, this functionality is available for Administrators to configure and for Tenants to use.

Issue 7
It is difficult to discover how to create Co-Administrators for an existing subscription.

Symptoms Tenant users typically go to “My Account” and “Subscription” drawer and pane, but do not see an option there to create Co-Administrator.
Resolution In this Update, a new link is added to the “My Account” drawer set of options.

Issue 8
Error messages in Administration Site that refer to un-configured services in a Plan do not specify the problems.

Symptoms When you try to update a Plan, such as when you make it public, an error is generated if any of the Resource Providers it contains are not configured. This message does not specify the problem or which Resource Providers are affected.
Resolution In Update 2, the messages are more informative, and the user can take corresponding actions.

Issue 9
Subscription Update Events are provided in the Pending Approval state instead of the Acknowledge state.

Symptoms Billing System receives the Subscription Update Event in the Pending Approval state.
Resolution In Update 2, the Billing System receives the Subscription Update Event in the correct state.

Issue 10
An obscured error is returned when a Tenant creates a database by using a security token whose corresponding password does not meet the SQL Server domain policies.

Symptoms The user receives an unrelated SQL error about a SELECT statement that contains an invalid column.
Resolution In Update 2, the tenant sees the correct error and can resolve it by changing the credential password.

How a Microsoft Failover Cluster works

During my daily work in the field I often have to explain how a Failover cluster in the Microsoft world is working. Currently I mostly discribe three kinds of clusters. First is the Clustertyp which is used for DHCP Failover Cluster, like discribed in a former blogpost. The other is a DAG or Database availability group, how it is used in Exchange and Failover Cluster how it works in Scale out Fileserver and Hyper-V Cluster.

Today I want to focus on the Fileserver and Hyper-V Failover Cluster and try to explain it.

At first, you need to know such a failover cluster must have an uneven number of cluster members.

Why do we need an uneven number of cluster member? The reason for is a thing named split brain.

Source wikipedia:

Split-brain is a term in computer jargon, based on an analogy with the medical Split-brain syndrome. It indicates data or availability inconsistencies originating from the maintenance of two separate data sets with overlap in scope, either because of servers in a network design, or a failure condition based on servers not communicating and synchronizing their data to each other. This last case is also commonly referred to as a network partition.

An uneven number of cluster members? But dies this mean I can only have 1,3,5, … etc. servers in my cluster?

Normally yes but hear comes the Magic. The uneven  member do not need to be a Server, it could also be a share or LUN. This share is named Cluster Shared Volume (CSV) or cluster witness. Every Server and the cluster witness have the same wight in the cluster.


Now one server catches the witness and becomes the “clustermaster” and has more votes in the cluster. He will give the direction for the other nodes.


What happens if one cluster when the cluster master files? Very easy, together with the cluster master, the cluster shared volume fails too. That means at the end we will have an uneven number of cluster nodes and there won’t be a split brain.



If a cluster member failes, the witness will be disconnected and deaktivated. That will also bring an uneven number of cluster nodes and we won’t run in split brain.



Now you will ask, I have more than two nodes. What will happen if the connection splits the cluster in two halfes? which means it would force the split brain issue again!


The cluster member will notice their numbers on both sides. Than the cluster will go and run on the uneven cluster half.




Free ebook: Microsoft System Center: Integrated Cloud Platform

Source:  Microsoft Press

You can download the free ebook here.


Microsoft System Center: Integrated Cloud Platform is targeted toward IT executives and architects interested in the big picture of how Microsoft’s cloud strategy is delivered using Windows and Microsoft System Center. We provide an all-encompassing approach to understanding and architecting Windows Server 2012 R2, System Center 2012 R2, and Windows Azure based solutions for infrastructure as a service. The combination of Windows, System Center, and Windows Azure is a cloud-integrated platform, delivering what Microsoft calls the “Cloud OS,” which is a common platform spanning private cloud, public cloud (Windows Azure), and service provider clouds. This platform enables a single virtualization, identity, data, management, and development platform across all three cloud types.

This book is organized by cloud type and we begin with a short overview of the Cloud OS strategy from Microsoft and a high-level hybrid cloud architecture that will be detailed throughout the book. Next we cover the design and deployment of private cloud solutions using Windows and System Center to deliver the software-defined datacenter where storage, network, compute, and management are all virtualized and delivered by the Microsoft platform. We cover some of the substantial cost savings that can be achieved using the Microsoft storage platform, the multi-tenancy enabled by our network virtualization platform, and the consolidation ratios that can be provided by Hyper-V’s scalability and high performance.

With a private cloud foundation in place, we next move to the public cloud and detail how to extend the private cloud datacenter (network, storage, compute, management) to Windows Azure while treating it as a seamless extension to your datacenter. Finally, the third cloud type, service provider clouds, are covered using the same approach—extending your datacenter to service providers. The end result is a robust hybrid cloud architecture where consumers of IT within an organization can choose the optimal location to host their virtual machines and services on any of the three cloud types based on which cloud makes the most sense for their workload.


This book summarizes the detailed architecture and design work captured in the Infrastructure as a Service (IaaS) reference architecture guides from Microsoft Services. The architectures represent years of lessons learned from our largest and most complex customer implementations.

Microsoft Most Valuable Professional (MVP) – Best Posts of the Week around Windows Server, Exchange, SystemCenter and more – #75

“The Elway Gazette”

Hi Community, here is my compilation of the most interesting technical blog posts written by members of the Microsoft MVP Community. The number of MVPs is growing well, I hope you enjoy their posts. @all MVPs If you’d like me to add your blog posts to my weekly compilation, please send me an email ( or reach out to me via Twitter (@FloKlaffenbach). Thanks!


Featured Posts of the Week!

What Is Hyper-V Dynamic Memory? by Aidan Finn

How Does Hyper-V Dynamic Memory Work? by Aidan Finn

The Hyper-V Amigos Showcast Episode 2: Unmap by Carsten Rachfahl and Didier van Hoye

 by Jaap Wesselius


PowerShell Remoting with Azure Windows VMs by Ravikanth Chaganti

How My New Azure VM Web Server Is Configured by Aidan Finn

testing the new Microsoft Azure Portal by Niklas Akerlund

Hybrid Cloud–Enable Distributed File System (DFS) in Microsoft Azure by Lai Yoong Seng

Azure Pack



 by Jaap Wesselius

 by Jaap Wesselius

 by Jaap Wesselius


End Of Life Coming To Old Microsoft Virtualization Products by Aidan Finn


What Is Hyper-V Dynamic Memory? by Aidan Finn

How Does Hyper-V Dynamic Memory Work? by Aidan Finn

KB2956569 – Degraded Integration Services Message For Linux Guests by Aidan Finn

Lync Server


Office 365



Automated PowerShell to keep your template vhd(x) IC updated by Niklas Akerlund

Desired State Configuration and the remoting myth by Ravikanth Chaganti

Pushing DSC configuration to an Azure VM by Ravikanth Chaganti

Is native Windows PowerShell support coming to Visual Studio? by Ravikanth Chaganti




System Center Core

Microsoft System Center 2012 R2 Integration Pack for #VMware #vSphere #sysctr by James van den Berg

System Center App Controller

System Center Avisor

System Center Configuration Manager

Why you shouldn’t use the Powershell pipe when using ConfigMgr by David O’Brien

How to Add the Company Logo to SCCM Reports by Hasitha Willarachchi

System Center Dataprotection Manager


System Center Operations Manager

System Center Orchestrator

System Center Service Manager


System Center Virtual Machine Manager

PowerShell Snip of the Week (SCVMM) by Rob McShinsky

System Center 2012 R2 VMM High Availability – Installation Update Rollup 1 in german by Daniel Neumann

SQL Server

Windows Server 2012 R2 with SQL Server 2014 Cluster installation in less than 15 minutes #winserv #Rocks #movie by Robert Smit

Microsoft #SQL Server 2014 Feature Pack #ITPRO by James van den Berg

Microsoft #SQL Server Backup to #MicrosoftAzureTool by James van den Berg

Windows Intune

Windows Client

UPDATE : Windows Assessment and Deployment Kit (Windows ADK) for Windows 8.1 Update #ADK #SCVMM by James van den Berg

Changes To Licensing For Enterprise App Sideloading in Windows 8.1 by Aidan Finn

Boot from VHDX for Windows 8.1 Update by Hans Vredevoort

What are the options available to migrate Windows XP to Windows 7 by Hasitha Willarachchi

How to Customize a boot image that uses Windows PE 3.1 by Hasitha Willarachchi

Windows Server

ADFS: Grundlagen und Architektur in German by Nils Kaczenski

What Does Windows Server 2012 R2 Update Offer? by Aidan Finn

Memory Leak on HP ProLiant Servers with NIC Teaming by Hans Vredevoort

The Hyper-V Amigos Showcast Episode 2: Unmap by Carsten Rachfahl and Didier van Hoye


Windows Management Framework 5.0 preview is here! by Ravikanth Chaganti

MVPs I follow

James van den Berg - MVP for System Center Cloud and DataCenter Management
Kristian Nese - MVP for System Center Cloud and Datacenter Management
Damian Flynn - MVP for System Center Cloud and Datacenter Management
Daniel Neumann - MVP for System Center Cloud and DataCenter Management
Marcelo Sinic - MVP for System Center Cloud and DataCenter Management
Stanislav Zhelyazkov - MVP for System Center Cloud and Datacenter Management
Ravikanth Chaganti - MVP for PowerShell
Jan Egil Ring - MVP for PowerShell
Jeffery Hicks - MVP for PowerShell
Keith Hill - MVP for PowerShell
David Moravec - MVP for PowerShell
Aleksandar Nikolic - MVP for PowerShell
 - MVP for PowerShell
Adam Driscoll - MVP for PowerShell
Jeff Wouters - MVP for PowerShell and the man who had his own Newsletter Category before ;)
Marcelo Vighi - MVP for Exchange
Johan Veldhuis - MVP for Exchange
Jaap Wesselius - MVP for Exchange
Lai Yoong Seng - MVP for Hyper-V
Rob McShinsky - MVP for Hyper-V
Hans Vredevoort - MVP for Hyper-V
Leandro Carvalho - MVP for Hyper-V
Didier van Hoye - MVP for Hyper-V
Romeo Mlinar - MVP for Hyper-V
Aidan Finn - MVP for Hyper-V
Carsten Rachfahl - MVP for Hyper-V
Thomas Maurer - MVP for Hyper-V
Alessandro Cardoso - MVP for Hyper-V
Steve Jain - MVP for Hyper-V
Benedict Berger - MVP for Hyper-V
Nils Kaczenski - MVP for Hyper-V
Alessandro Pilotti - MVP for Hyper-V
Susantha Silva - MVP for Hyper-V
Niklas Akerlund - MVP for Hyper-V
Robert Smit - MVP for Cluster
Ramazan Can  - MVP for Cluster
Michael Bender - MVP Windows Expert-IT Pro
Ulf B. Simon-Weidner - MVP for Windows Server - Directory Services
Meinolf Weber - MVP for Windows Server - Directory Services
John Policelli - MVP for Windows Server - Directory Services
Kerstin Rachfahl - MVP for Office 365
Martina Grom - MVP for Office 365
Nick Whittome - MVP Small and Medium Business
Matthias Wolf - MVP Group Policy
Robert Mühsig - MVP ASP.NET/IIS
Thorsten Hans - MVP Sharepoint
Andrew Connell - MVP Sharepoint
Toni Pohl - Client Development
Hasitha Willarachchi - Enterprise Client Management
David O'Brien - Enterprise Client Management
Chris Nackers - Enterprise Client Management
Marc van Eijk - Windows Azure