Monthly archives "April 2014"

System Center 2012 R2 – Rollup Update 2 released

http://support.microsoft.com/kb/2932881/en-us

For SCVMM, a bunch of bugs are getting fixed… 😀

Update Rollup 2 for System Center 2012 R2 Virtual Machine Manager resolves the following issues:

  • Files cannot be found on a network-attached storage device that uses NetApp storage and Server Message Block version 3 (SMBv3) protocol.
  • After an account’s password is changed, the Scale-Out File Server provider goes into a “not responding” state.
  • VMM wipes the System Access Control List (SACL) configurations on ports.
  • When an uplink profile’s name contains the “or” string, VMM console cannot show its details when it adds the uplink profile to a logical switch.
  • Dynamic disks cannot be used as pass-through disks.
  • When you create a standard virtual switch on a host without selecting the Allow management operating system to share this network adapter check box, the virtual switch is created. However, the virtual switch still binds to the host unexpectedly.
  • Network address translation (NAT) uses port number 49152 or a larger number, which Windows prohibits from being used by NAT.
  • When a virtual machine IP address type is static Out-of-Band and there is no IP address pool that is associated with the virtual machine network or the logical network, migration is complete with multiple errors.
  • If a highly available virtual machine is migrated from one node to another node by using Failover Cluster Manager, you receive an error message that indicates the absence of VHD files.
  • Some performance issues in VMM.
  • Connection with Operations Manager fails in a non-English environment.
  • After you upgrade VMM from System Center 2012 Service Pack 1 (SP1) to System Center 2012 R2, VLAN settings disappear and cannot be saved in the virtual machine.
  • Virtualization gateway could not be discovered by management packs.
  • The New-SCPhysicalComputerProfile Windows PowerShell cmdlet fails with a NullReferenceException exception.
  • Assume that you put a host into maintenance mode. When any highly available virtual machines cannot evacuate successfully, they are put into a saved state instead of into task failures.
  • Assume that you have a computer that is running VMware ESX Server to host virtual machines. Additionally, assume that cumulative progress for many applications, scripts or actions (that is reported by guest agent) becomes large. In this situation, all deployments time out, as the guest agent cannot communicate to the server successfully.
  • You cannot deploy a service template to VMware ESX 5.1 hosts. Additionally, you receive an error 22042 and a TimeoutWhileWaitingForVmToBootException (609) exception.
  • When you migrate a virtual machine together with Out-of-Band checkpoints, database corruption occurs.
  • Pass-through disks are not updated correctly in the database after they are refreshed from an Out-of-Band migration.
  • Assume that hosts establish a Common Information Model (CIM) session that can send policies to the host after the Hyper-V Network Virtualization initialization. Additionally, assume that a policy-sending activity is initiated before the CIM session creation is completed. In this situation, policies are stuck in the sending queue, and the host does not receive any Hyper-V Network Virtualization policies.
  • Communication is broken in Hyper-V Network Virtualization.
  • When you use a same user name for Run As Accounts in guest customization, a conflict occurs.
  • You cannot use a parameter together with .sql scripts for a Run As Account during a service installation.
  • You deploy a template that uses empty classification to a cloud. However, the template does not respect storage classifications that are set on the cloud.
  • When Windows Server fast file copy cannot deploy files successfully, the Background Intelligent Transfer Service (BITS) fallback task continues using the fast file copy credentials.

 

 

http://support.microsoft.com/kb/2932926/en-us

 

 

Why Hyper-V ?

This is one of the hot topic which I am seeing for the last few years. Though I am not an expert on VMWare, I thought of writing my view point why should you consider Hyper-V now. I say it again – This post is only about why you should consider Hyper-V… Not about why you should not consider VM Ware.

VMWare ESX is in the virtualization world from 2001 and considered as the popular Virtualization platform. As other products started entering into Virtuilization spectrum, by 2008 consumers got few choice to choose between multiple Virtualization platforms. VMWare ESX was the spotlight until Windows Server 2012 was released. And now with Windows Server 2012 R2, I feel that Microsoft will dominate with a larger number of market share with in the next two years.

My view point.

Going through the Gartner reports for the last few years for Server Virtualization – Its evident that Microsoft has invested  a lot and proved that Hyper-V is one among the best.  I hope that in the upcoming Gartner report, Microsoft will be more closer to VM Ware and may be in the next year – they will share the same position. :) . In the mean time, VMWare was stagnate with out any change in these years – though being the top. If you are a VMWare fan  – I know you have a strong disagreement.

 

 

Gartners Magic Quadrant

Gartners Magic Quadrant

 

I did an evaluation of VMWare few months back and while comparing with Hyper-V, I dont see much difference as a whole. We would like to see how quickly we can deploy a private cloud through VMWare as I took two months to setup SCVMM and may be few weeks to setup a private cloud . I was standing neutral and passive on the whole deployment and configuration. For me – I dont think that VMWare is also not so simple and may need good understanding to make the running smooth.

I made a private cloud with SCVMM 2012 R2 with just Hyper-V and SCMM 2012 R2. For the first time, I struggled a lot as I need the exact information on how to implement this as per my requirement. It took approximately 2 months for me to completely deploy it and start using it. Once I did it, I felt like it was simple if I know the components inside VMM. Now I can confidently say that I can build a private cloud in 2 days. I did had a look while trying out vCAC with ESX. That was also not a magical configuration with few clicks – it had similar configurations as SCVMM.

With my SCVMM 2012 R2, I could provision a VM in less than 3 minutes. I am yet to see a better time from VMWare on a similar pay load. And on the roles – I just used SCVMM to build a Private cloud and cloud admins can use the SCVMM thick console for managing/self-provisioning their VMs. To achieve a similar setup, I see multiple components involved for VMWare. I am not saying that its bad. My point is that SCVMM could do this without having anything else.

If you get a chance to do an evaluation, the key points to be identified is the requirement. There are thousands of features or add On s which you may hear from the people around. Its your judgement that you really need those features or not. Some may be good to have and some may be must to have. Other few may be not to have ! So my take here is evaluate what you need to have and see what is good to have. Rather than allowing the people around you to showcase what they have ;).

On every session I had for VMWare, I hear these words again and again.. Business Critical, Up Time, Performance, IOPS, Memory ballooning…. ! Even after few such sessions, I started feeling that Microsoft is not the right candidate to have a Business critical VM to have guaranteed UP time and performance 😀 – Then realized that its something not logical.

The reason is simple.

IT is not simple.

IT Admins needs knowledge on the product. The more knowledge, the more confident to manage the product.

An Administrator who knows the product can really say that a product is good or bad. I don’t know VMWare – So I am not going to comment on VMWare. 😀

This is applicable for any product including VMWare or Hyper-V. Its the subject knowledge which will make you feel that a product is simple or complex.

I am not going to do a comparison with VMWare and Hyper-V. For a detailed comparison among different virtualization platforms – Refer http://www.virtualizationmatrix.com

 Why Hyper-V will gain more market share?

The growth for Hyper-V in the last few years was rapid.  The figure I have is from the Technet blog.

This is specific to the Virtualization market in Latin America and the growth is evident.

 

virtualizationmarketWe are yet to see similar reports for other region. However – Virtualization market is expanding. And in such an expending market – Hyper-V is moving up – which is really impressive.

Conclusion

If you plan for evaluating a virtualization platform, spend some time. Understand what you want. Look for what these products can offer. And finally, learn the product while you deploy it. Manage with confidence !

 

Good luck !

 

Note – This is my personal view point. You may agree or disagree or even close the browser 😀 if you feel so.

 

Hyper-V Dashboard – V3 Released

As mentioned in my last post, Hyper-V Dashboard V3 is ready and available in Technet Gallery.

With the new version, this become a full Hyper-V Dashboard as this report will provide you details on VMs, Physical Host and the storage.

New Features with V3.

Added Host Report to capture the Processor/Memory utilization of Hyper-V Host

Added Color Coding to identify servers which needs attention

New look

Here is few screen shots from the report.

Hope you enjoyed the script !

Hyper-V VM Dashboard

Hyper-V VM Dashboard

Hyper-V Host Dashboard

Hyper-V Host Dashboard

 

Hyper-V Storage Dashboard

Hyper-V Storage Dashboard