Author Archive

Hyper-V Linux Integration Services 2.1 RTM

The Microsoft Virtualization Team blog has recently announced that version 2.1 of the Linux Integration Services has been released. Quoting from their website, the following features are included in the 2.1 release:

  • Driver support for synthetic devices: Linux Integration Services supports the synthetic network controller and the synthetic storage controller that were developed specifically for Hyper-V.
  • Fastpath Boot Support for Hyper-V: Boot devices take advantage of the block Virtualization Service Client (VSC) to provide enhanced performance.
  • Timesync: The clock inside the virtual machine will remain synchronized with the clock on the host.
  • Integrated Shutdown: Virtual machines running Linux can be gracefully shut down from either Hyper-V Manager or System Center Virtual Machine Manager.
  • Symmetric Multi-Processing (SMP) Support: Supported Linux distributions can use up to 4 virtual processors (VP) per virtual machine.
  • Heartbeat: Allows the host to detect whether the guest is running and responsive.
  • Pluggable Time Source: A pluggable clock source module is included to provide a more accurate time source to the guest.

This version of the integration services for Hyper-V supports Novell SUSE Linux Enterprise Server 10 SP3, SUSE Linux Enterprise Server 11, and Red Hat Enterprise Linux 5.2 / 5.3 / 5.4 / 5.5. You can obtain the Linux IS’s via the Microsoft Download Center.

I’ve been told that this realease also fixes some major time drifting issues on Linux guests running with the SMP (multiprocessor) option activated that were present in the RC version. On this note, I’ll also be releasing a screencast (in Romanian) on running Linux under Hyper-V soon, along with some best practices. :)

Hyper-V Dynamic Memory and RemoteFX

Now that the Windows 7 and Windows Server 2008 R2 Service Pack 1 (SP1) Beta are out, a lot of info has also been coming out on the new features it brings to Hyper-V R2: Dynamic Memory and RemoteFX.

As far as Dynamic Memory is concerned, there’s a very comprehensible article on the Virtualization Team’s blog, and a post on Ben Armstrong’s blog as well. Ben also mentions all the supported guest operating systems for both the DM beta and the release, and he also spoke about it at TechEd US 2010.

Also, when it comes to RemoteFX, while many SBC (server-based computing) players announced their support for it (e.g. VMWare, Quest, Wyse Technology), I do think nVidia is the one that stands out, because this brings a huge opportunity for them to enter the server market.

End of support for Windows XP SP2

Microsoft has recently announced the end of support for Windows XP SP2 (which means it won’t be receiving any more updates).

Vista RTM is also scheduled to enter end-of-support in April 2010. More details on the Microsoft website.

Network Monitor 3.4 has been released

Yup, Network Monitor 3.4 is out – more details on the official blog post.

I’ve been using it for quite some time now, and it’s one of the best tools of its kind. :)

More VMs for Hyper-V R2 cluster nodes

Ben Armstrong recently announced that the previous Hyper-V R2 limit of 64 VMs per node in a cluster has been increased up to 384 VMs (which was the existing limit for any non-clustered node). The “Requirements and Limits” page on TechNet has also been modified to reflect the new changes.

A quick note here: even with the newly introduced support for more VMs per node, you’re still limited to 1000 VMs per cluster. ;)

W2008R2 & W7 SP1 public beta coming

The contents of this press release were announced during the TechEd North America keynote: http://www.microsoft.com/Presspass/press/2010/jun10/06-07TechEd2010PR.mspx

“Public beta of service pack 1 (SP1) for Windows Server 2008 R2 and Windows 7 coming by end of July. The new virtualization tools in SP1 will help Windows Server 2008 R2 users prepare for cloud computing, Remote FX provides rich 3-D graphical experience for remote users, and Dynamic Memory enables more control to adjust memory usage without sacrificing performance. The service pack also will include a series of incremental updates, previously delivered through Windows Update, for both Windows Server and Windows 7 users.”

Ben Armstrong (Virtualization Program Manager) was also there at TechEd, talking about Dynamic Memory in Hyper-V R2 SP1 (download available).

Later edit: check out the DM presentation recording here.

Google and the Windows security debate

Following an article in the Financial Times where Google states they’re dropping Windows all across the company, out comes the response of the Windows Team, on their official blog. In short, Google are blaming Windows for the China attacks in January, and they’re ditching it in favor of Linux and MacOS. But is really blaming a 9-year-old browser the way to go?

To be honest, I find that the biggest security problem with Windows is actually it’s popularity: in the long run, using Linux or MacOS might in fact be less secure if attacked directly, even if there really are more known attacks/viruses/worms/trojans built  for Windows than there are for MacOS or Linux. After all, the security of a computer system depends very much on it being up to date and properly configured, while also running latest versions of any software being used. Having an outdated and/or badly configured version of any OS is a dangerous thing to do, no matter which OS it is. And switching to another OS simply because you can’t properly and securely configure the previous one is a really dumb move.

In any case, both links above are worth a read. :)

Later edit: Google have also announced that ChromeOS will be out “later this fall” -  do you really think this is just a coincidence?