Speaking at Cloud & Datacenter Conference Germany

Hey everybody,

this week I got a mail from Carsten Rachfahl the inventor and host of the Cloud & Datacenter Conference Germany. The CDC is one of the biggest IT Conferences in Germany and Carsten offered me a Speaker slot at his conference 🙂

I’m so proud that I match Carsten’s high quality standards and will be able to share some knowledge about Microsoft Azure. The topic I’m speaking about isn’t completely clear yet but I think it will be Microsoft Azure ExpressRoute and Azure Networking. 🙂

 

 

Azure Hybrid Series Part 4 – Offsite Backup with Azure

Today my the next part of my hybrid series went online.

This time about Offsite Backup with Azure.

You can read the whole Blog (in German) on the Azure Community Germany Community.

Link: https://wazcommunity.wordpress.com/2016/04/02/azure-hybrid-infrastruktur-4-azure-als-offsite-backup-location/

How to configure StorSimple virtual Array – Microsoft Video Series

Hi everybody,

like you already know Microsoft announced a StorSimple virtual Array in December 2015.

This week Program Manager Sharath Suryanaarayan  published a Guide on YouTube about how to configure it. If you are interest in that product, you shouldn’t miss his videos.
Video #01: StorSimple Virtual Array Getting Started

Video #02: StorSimple Virtual Array Create

Video #03: StorSimple Virtual Array Configuration

Video #04: StorSimple Virtual Array Create Shares

Video #05: StorSimple Virtual Array DR

Using shared VHDx for guest clustering on a storage with no support for Microsoft Cluster & virtualization

Hi everybody,

last weekend my friend Udo Walberer and I had some struggles when setting up a guest cluster with shared VHDx as cluster volumes. We weren’t able to get it work.

We were able to connect the VHDx and to configure it as cluster volume but after a reboot the VMs weren’t starting and we get following failure:

svhdx

 

So after some research wie figured out that the storage which he was using had no support for Microsoft Clustering and Virtualisation as well as Persistent Reservation. After we tested on a supported storage all was fine.

So please before you try to use shared VHDx, check if you storage is supported for some options.

The two screenshots below show you two synology storages, first one without those support and second with support.

25-07-_2015_21-02-41

25-07-_2015_21-03-02

 

 

Why you should plan your storage structure when working with clusters Part#1 Single Storage / Single Cluster

Hi everybody,

today I want to talk a bit about “why you should think about your storage structure when planning a cluster”.

Now most of you think “hey why thinking, I ask the storage guy to create a new LUN fĂĽr me and thats it.”

Sorry guy’s theres the mistake. What if the storage guy provisions your new LUN on the same diskgroup like you others or on a full storage? What if the diskgroup or storage failes?

Within this post, you will get some of my personal best practices how to provison LUNs and cluster share volumes on Storages and diskgroups.

Let us start with an easy one.

 

What you should do is to create two disk groups. Yes you will lose some diskspace depending on the raid level but we are talking about redudancy and to minimize service outages. So a lose of diskspace shouldn’t be a problem.

Diskpool

Now you need to decide which RAID you want to use on your disk pool. Here it depends from storage to storage if you have SSD Disks as level 0 cache which most enterprises use, you can decide to use RAID 5 to enhance your capacity otherwise you should use RAID 10 to encrease your IO performance. NEVER use RAID 0!!!!

For the best storage capacity to perfomance relation for your storage, please talk to your storage vendor. He can tell you 🙂

Diskgroup

Now you decide you LUNs that will provisioned on the Storage. Here you should use a designe which is logical for you. For me it depends on the cluster service I run. I will show you one of the most common and understandable ones.

LUN

At least comes the Windows Server Cluster Magic. Dependig on the cluster service you are running, you should now deploy the services and rolles on the different cluster shared volumes.

I will try to show it with the example Scale Out Fileserver and Hyper-V.

 Microsoft Hyper-V  Microsoft Scale Out Fileserver
 hyper-V Place
 SoFS Place

So that’s all for today, I hope that blogs helps you out a bit.