Snapshots or Checkpoints - One and the Same.
First of all a snapshot is exactly the same as a checkpoint, if you use Hyper-V Manager you will see the term snapshot and if you use System Centre Virtual Machine Manager or SCVMM you will see checkpoint both processes are exactly the same the differences are merely in terminology.
The first and most important thing I would like to cover is that snapshots are not a backup/disaster recovery solution, they are simply a point in time capture of the data,hardware configuration and state of your virtual machine. snapshots are particulary useful for reverting back to a previous state quickly and easily, Microsoft only recommends the use of snapshops in a test/development environment. I only use snapshots for a virtual machine when applying updates to the guest operating system or an application within the OS, if the update is successful then the snapshot is immediately deleted and the VM shutdown so the merge process can take place. I do not recommend keeping snapshots of your Virtual Machines in a production environment.
Virtualization I am sure has been on everyone's agenda for a while now, but fully embracing the virtual world wasn't quite there yet for us. We were running VMware ESXi for little over 18 months when we decided to take a look at Microsoft's Hyper-V offering (mainly due to cost). So we installed the Hyper-V server role on a full fat install of Windows Server 2008 R2 pre SP1, so dynamic memory was merely a rumour at this point! first impressions were good and after looking at Cluster Shared Volumes and alot of further testing we decided to go ahead and move our proof of concept into production.
Planning Physical to Virtual Conversions - Capacity Planning has to start somewhere !
If you are planning to convert existing physical servers to Hyper-V's with VMM 2008 R2, there is a good tool from Microsoft, the MAP toolkit (Microsoft Assessment and Planning toolkit). The MAP toolkit is agentless and will help you gather the required information for you to plan your Hyper-V assault, providing information on candidates for virtualization and auto generating reports. Also with the Microsoft Integrated Virtualization ROI Tool you can calculate potential power cost savings with Hyper-V before deploying, some useful information to have in your arsenal!
P2V planning also gives you a good starting point to spec up your hardware and plan your SAN capacity.
So ive never really been in to the bloging thing! I quite frequently read through other blog sites and find some really interesting solutions to problems that others have experienced. As a first introduction I will try and explain a little about what I do and the technologies that I work with on a day to day basis.
Firstly a little about me, I work in the Education sector providing IT Support to a top performing Sixth Form College, and have been providing IT support to the people of the world for 10 years now. I would describe myself as a hardworking and commited person with sound technical knowledge of Microsoft technologies. My aim is to blog about projects I undertake 'the good the bad and the ugly'! Hopfully what I post will be of some use to someone somewhere and inturn inspire them to write about their day to day exploits as I have been inspired by others. I will also include other blogs I have found useful as there has been many and keep the circle going.
What will I actually be talking about! As my main project over the past 12 months has been Virtualization with Microsoft Hyper-V and Dell's Equallogic iSCSI SAN, the main of what I talk about will be centered around this but, I will also be posting about Forefront Threat Managment Gateway, Windows Server 2008 R2 (SP1) as now is, and anything else I think may be interesting to others, we will see how it goes.
Anyway until next time.