2014
10.06

The big news today is that HP is “planning” to split. No, not leave, but divide into two.

Hyper-V

Windows Server

Office 365

Miscellaneous

2014
10.03

I took the plunge yesterday while preparing an Azure presentation – I performed an in-place upgrade of Windows 8.1 on my Toshiba KIRAbook to Windows 10. Initially I tried to do it via USB, but I’d not prepared a UEFI stick for the device (thanks for the tip Hans Vredevoort). I copied the install files onto the laptop and ran it – within half an hour I had a fully upgraded machine with all my apps, programs, data, and settings in place. I think the only thing I had to do was re-install LastPass for IE.

The performance of the technical preview is excellent. Reboots were already blisteringly fast on this machine and now it’s not much more than a slow blink.

The start menu works as expected. I doubt I’ll use multiple screens much but it’s easy to use too. The weird experience was that I kept expecting to see the start screen when I clicked on Start. I have the ability to go back to the Win8 behaviour but I won’t; instead I just pinned my usual warm apps to the start menu, while my usual hot apps were on the task bar as they were before the upgrade.

I was out on a customer site today performing a health audit of a hosting infrastructure. I had the KIRAbook with me, taking my notes in OneNote. It behaved normally and was stable. Performance was good, and as usual for this hardware, the battery was excellent.

This afternoon I was back in the office and showed the machine to my colleagues. While they are not IT people, most of them are comfy with tech because that’s what they sell. The Start Menu seemed like a hit. One odd reaction I got was “I want to be able to expand the start menu to a start screen”. The reasoning was that it was easier to search for something in a bigger screen if you had loads of stuff installed. I can understand that one.

Anyway, so far, so good. And like many others have said already, Windows 8 would have been a hit if it was like this.

Somewhere, Steven Sinofsky and Julie Larsson Green are seething.

2014
10.03

The dust has settled a little bit after the craziness of the past few days. Here’s some regular news.

Windows Server

System Center

Windows Client

Azure

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How you can currently use ASR

Office

Miscellaneous

2014
10.02

As I blogged last night, Microsoft released the technical preview releases for the Threshold generation of Windows Server and System Center, as well as Windows 10. Maybe by now you’ve started your downloads and begun exploring.

Maybe you’d like a little bit of reading to prepare you for what’s to come? Here’s what I could find so far:

  • What’s New in the Windows Server Technical Preview: The content in this section describes what’s new and changed in Windows Server® Technical Preview. The new features and changes listed here are the ones most likely to have the greatest impact as you work with this release.
  • Release Notes: Important Issues in the Windows Server Technical Preview: These release notes summarize the most critical issues in the Windows Server® Technical Preview operating system, including ways to avoid or work around the issues, if known.
  • Release Notes for System Center Technical Preview: These release notes provide information about System Center Technical Preview. To evaluate System Center Technical Preview, you need to be running Windows Server® Technical Preview and Microsoft SQL Server 2014.
  • Features removed in System Center Technical Preview: The following is a list of features and functionalities in System Center Technical Preview that have been removed from the product in the current release. This list is subject to change in subsequent releases and may not include every removed feature or functionality.
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2014
10.02

In case you didn’t know, you can use CTRL + V to paste into Windows 10. This is off by default. You can enable it:

  1. Open Command Prompt
  2. Open the properties of the command prompt (right-click the top left corner)
  3. Browse to the Experimental tab
  4. Check the box for Enable Experimental Console Features. The CTRL key option is the only one checked by default. You can enable others if you want.
  5. Restart the Command Prompt

Yeah! Now you have copy/paste via the keyboard. My laptop has a very high screen res. Before the upgrade the text in the window was TINY and was not adjusted. By enabling experimental features, the text has been increased in size to make it legible.

2014
10.01

I just checked and you can find:

  • Windows Server (Standard) Technical Preview
  • Windows Server Datacenter Technical Preview
  • Hyper-V Server Technical Preview

The Windows 10 technical previews are also there.

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An image is available in the Azure gallery for the Windows Server Technical Preview. I deployed it in Europe North and it works fine.

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You can also get the Remote Server Administration Tools for Windows 10 Technical Preview.

What’s New in the Windows Server Technical Preview

The System Center preview (minus SCCM) is also available to download from MSDN. Note that App Controller no longer exists, and Windows Azure Pack should be used instead.

Edit#1

Microsoft has released the Windows Server & System Center previews to the general public.

2014
10.01

There’s not all that much news to cover this morning. Oh … hold on …

Hyper-V

Windows Server

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Windows Client

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System Center

Azure

Security

Office 365

  • Delivering the first chapter of Groups in Office 365: Grouping of users will be rolled out to all customers that have an Exchange Online or Office 365 commercial subscription, both new and existing. Eligible Office 365 plans include the Office 365 Enterprise E1–E4 subscription plans (including the corresponding A2–A4 and G1–G4 plans for Academic and Government customers, respectively), Office 365 Business Essentials and Business Premium plans, Office 365 Small Business, Small Business Premium and Midsize Business plans and Office 365 Kiosk plan.
  • Step-By-Step – Setting up the new Azure AD Sync Tool: AAD Sync is Microsoft’s new directory synchronization tool that simplifies the process of connecting Azure AD to Windows Server AD. It also makes it more simple to connect complex, multi-forest deployments.

The Funnies

  • America’s CBS attempts to out-dumb CNN:

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2014
09.30

Microsoft confirmed the future plans of Windows Server & System Center (Cloud OS) vNext tonight. The released “a bit” of information:

    • Infrastructure upgrades: Rolling upgrades for Hyper-V clusters to the next version of Windows Server without downtime for your applications and workloads. This includes support for mixed versions as you transition your infrastructure.
    • Networking:  New components for our software-defined networking stack that enable greater flexibility and control, including a network controller role to manage virtual and physical networks.
    • Storage: New synchronous storage replication that enhances availability for key applications and workloads plus storage Quality of Service to deliver minimum and maximum IOPS in environments with workloads with diverse storage requirements.
    • Remote Desktop: Enhanced application compatibility with OpenGL and OpenCL support.
    • Identity and Access Management: New scenarios to reduce the risk profile of administrators with elevated rights, including time-based access with fine-grained privileges, and new application publishing capabilities.

They also confirmed that the preview will be out on Oct 1st:

As our first step in this journey, we will be making a “Technical Preview” available for the next version of Windows Server and System Center on October 1.

 

This bit of news is strange:

We are also evolving how we ship our software and service our platform products to keep the software up-to-date. For our datacenter products, there is a duality in what customers want: in some scenarios customers tell us they favor stability and predictability while in other scenarios they want access to the latest and greatest technologies as fast as possible. We’ll have more specifics in the coming months, but you can expect us to deliver the best of both worlds: options for speed and agility, plus options for stability and durability

Hmm, worrying. I think they aren’t listening to us about update trustworthiness. We need to speak louder.

But on the positive side … .rolling friggin updates of Hyper-V clusters. Woooooooooooooooooooohoooooo!

Synchronous storage replication should be *ahem* very interesting. I also like the introduction of storage QoS.

2014
09.30

There’s no Windows 9. It’s called Windows 10. I know there’s got to be a story behind this, probably one that we’ll never here, and probably related to a change in management, and possibly direction.

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Thank frak they did not call it “Windows” or “Windows One”, both of which were teased during the event.

You can see a video of Windows 10 in action here:

Not much was shown that we didn’t already know about. This is a very early build. I think this in conjunction with the skip of Windows 9, suggests to me that there was a re-planning quite late in the process.

The technical preview (a very early build) is out tomorrow (Oct 1st). Join the Windows Insiders program to get your hands on this, probably unstable and frequently updated, build and contribute feedback.

The goal of this build is to show that Windows 7 users can move to Windows 10, like moving from a Prius to a Tesla without re-learning to drive.

The only mention of Windows Server Threhsold was that the preview will be out after the release of the Windows 10 preview.

On the schedule of Windows 10:

  • Tech preview on Oct 1st
  • Consumer preview in early 2015
  • GA in mid-late 2015 … further convincing me that there was a re-start on planning because we originally thought RTM would be around April 2015

Joe Belfiore will be one of the keynote speakers at TechEd Europe. I think we’ll hear much more then regarding enterprise features.

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EDIT #1

Microsoft released a recording of today’s event. Why oh why could they live stream this over Azure if they were going to even bother having cameras there?

EDIT#2

Another video was released, showing the concept of Continuum, the adaptive UI experience for convertible devices.

2014
09.30

Today in San Francisco, Microsoft is doing their first official unveiling of Windows codename Threshold, otherwise known as Windows 9 or Windows vNext.

Supposedly, this event was to be the enterprise unveiling. Enterprise customers are an important market for Microsoft; that’s because business decision makers have opted to upgrade from Windows XP to Windows 7, and not Windows 8/8.1, effectively choosing to make Windows 7 the next XP – a legacy OS that will exit mainstream support next year. Microsoft supposedly wants enterprises to try Windows Threshold early, and submit feedback, so that, supposedly, Microsoft will engineer the product based on feedback.

I used a lot of “supposedly’s” there, didn’t I? If I wanted to get enterprise customers interested then I would stream the unveiling live on the Internet, and not have a private press event where most of the invitees haven’t the foggiest about what enterprise customers want. It just does not make sense to me.

I wonder what value the event really has. It’s not a launch – that will likely be TechEd Europe on October 28th. The preview is not out until October. Don’t expect to hear a whisper of Windows Server or System Center for another month and a half. And come tonight, I doubt we’ll hear about anything in the Windows client OS that we do not already know – a lot of the GUI features were leaked months ago. I wonder if this event is actually Microsoft’s attempt to take control of the messaging.

There are two remaining questions:

  • Will this be a free upgrade? Enterprise customers usually have software assurance so that’s irrelevant to them. That’s more of a question for SMEs and consumers. Today is allegedly all about enterprises so I doubt we’ll hear anything.
  • What will they call it? Anything other than Windows 9 is a failure. It is rumoured that Windows Threshold will be the start of a more rapid release program, like you get with mobile devices. For enterprises: that would be hellish. Nice for consumers. It is also rumoured that Microsoft will simply call it “Windows”. Dumb! Dumb! Dumb! How is an enterprise to support something that changes frequently and has no obvious version number?

I really hope a lot of these rumours are wrong. Otherwise we’ll be contemplating Windows burning while Nadella plays his “cloud first, mobile first” fiddle.

We’ll be watching the tweets of Mary Jo Foley & Paul Thurrott, and the live blog on the Verge to find out what’s been discussed in San Francisco later this afternoon.

2014
09.29

Back From Vacation

I am back after a week away in the sun. Preparation for an event tomorrow has taken precedence so expect some posts either later tomorrow or on Wednesday.

2014
09.19

On Vacation

I will be away until Sept 29th on vacation. There should be no posts between now & then – but don’t be shy of hitting the archives and the search tool.

FYI, there will be no responses to email, no answering my phone, and no alarm calls in the morning. I am chilling in a warm climate, by the sea, with not a mosquito, midge, raptor or bear to be seen.

2014
09.19

There are a number of ways that you can purchase Azure. You can get it as a part of an enterprise agreement (high cost of entry, but highest value). You can get it via one of these means:

  • Pay direct (credit card)
  • Trial
  • MSDN benefit

We in the licensing biz bundle those options up as MOSP (Microsoft online subscription program). And then there is Open volume licensing (low cost of entry with control over spending and no long/big commitment).

I was told that at WPC (I was not there) attendees were briefed that customers who were subscribing to Azure via MOSP (see above) could switch to Open licensing.

That is not true; at this point, if you have been consuming Azure via direct payment (credit card), trial, or MSDN benefit, then you cannot switch to Open licensing – yet.

Microsoft is addressing this issue, and we believe a change of some kind is coming this calendar year (no promises because I do not work for Microsoft). That will allow:

  • Customers paying by credit card to centralize and take control of their Azure spending
  • Use a free trial to evaluate and price an Azure deployment, and switch to their desired Open licensing

So right now, not possible, despite what we were allegedly told at WPC, but a change is coming to enable switching to Azure on Open.

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2014
09.19

The positive highlight for me is the excellent TechNet article on managing tiered Storage Spaces. The lowlight was the unannounced price changes in Azure – (A) it was unannounced (B) there was no notice, and (C) it means that customers cannot plan; customers hate each and every one of those, especially the latter.

Hyper-V

Window Server

Windows

  • The September 30th Microsoft Event: Paul Thurrott (on Windows Weekly) confirmed that this event will not be streamed. Major mistake in my opinion. The attendees are a small set of media, and the subject matter is Windows “Threshold” in the enterprise. Sure … let’s not let the IT pros who will make the recommendation see the event. That’s reeeealllly sensible. Let the Windows 8 insanity continue.

Azure

Office 365

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Licensing

  • SPLA Audit start to finish: SPLA is based on an honour system – but audits have become a way of life with such licensing programs.

Miscellaneous

2014
09.17

I recorded an episode of the RunAs Radio podcast as a guest with MVP Richard Campbell a couple of of weeks ago, where we talked about using Windows Server in conjunction with commodity hardware to build software-based storage solutions:

Richard talks to Aidan Finn about Software Defined Storage. Picking up he left off in April talking about Microsoft’s Scale-Out File Server, the whole concept of Software Defined Storage is abstracting the details of the storage hardware away from the actual storage process. Aidan digs into how mixtures of SSD and spinning drives to optimize performance using Windows 2012 R2 Storage Spaces reduces costs and simplifies getting significant amounts of storage without any custom gear. And as Aidan says, in the end, it’s all just Windows. Storage continues to evolve, and not just for the big enterprise folks – there are clustered storage solutions for small and medium businesses too!

Here is the whitepaper that I refer to where 1,000,000 IOPS was achieved with a single JBOD tray. Here is the video that I produced that Richard mentions.

You can subscribe to the podcast (RSS here) via all the usual means, and you can download the MP3 here.

Or maybe you would like to see how a new 2U Cluster-in-a-Box (for cloud, branch office and SME deployments) model from DataOn has hit over 2 MILLION IOPS?

2014
09.17

Microsoft’s patch woes continue. A September update for Lync was pulled this week. Please: do not approve updates immediately; wait 1 month and let some other mug find the bugs for Microsoft.

Azure

Networking

  • Announcing the Message Analyzer 1.1 Release: The completely indecipherable replacement for Network Monitor has just been upgraded to v1.1. I find this replacement for NetMon to be a complete mystery and the UI looks like something Symantec would come up with (random). It’s no wonder WireShark remains the #1 choice.
  • Introduction to Message Analyzer 1.1: A YouTube video to give you a high-level introduction to Message Analyzer 1.1. Includes a run-through of the UI and an overview of general features.

Deployment

Office 365

Miscellaneous

2014
09.16

Microsoft just announced a bunch of new peripherals, including the new Arc Touch Bluetooth Mouse. I still have the original Arc mouse, which I’ve loved for the many years that I’ve had it. In case you don’t know – I really like Microsoft’s mice and keyboards, especially their substantial mice for desktop computers.

I just picked up the new Arc Touch mouse that is Bluetooth (4.0 low power) capable (working for a distributor has it’s benefits!). The fold-to-flat award-winning design is a space saver. It auto powers off the mouse, powered by 2 x AAA batteries. And it’s light. It paired straight away with my Windows 8.1 Toshiba KIRAbook, and the touch strip works nicely with the touch interface in Windows – there’s also a slightly audible scrolling noise to simulate a wheel movement with physical feedback. It’s working well on a wooden desk with no mouse mat.

ATBM

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Hopefully this new Arc mouse will last me as long as the last one has!

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2014
09.16

As an attendee, the most exciting bit of the conference preparation is registration and booking travel. Then the excitement builds up with the release of the schedule builder – this is, historically, a list of the sessions that Microsoft is free to advertise and talk about at that point in time … other sessions are hush hush until the keynote ;-)

The Schedule Builder is the tool that gives you the ability to list all of the sessions and check the ones that you want to add to your schedule. I typically break it down to time slots for the track(s) that I’m interested in, and check any session I like the sound of – and yes, I will double or even triple book … sometimes rooms are full, sometimes I change my mind, and sometimes I hear that sessions/speakers are excellent or not so good. Microsoft uses this information to plan room assignments for the sessions. Later on, you can sync the schedule builder to Outlook or download an ICS file – leave that as late as possible, maybe even until after you’ve attended the Monday foundational sessions.

The TechEd Europe 2014 Countdown Show, presented by Microsoft’s Joey Snow (@joeysnow) and Rick Claus (@RicksterCDN), featured the Schedule Builder last week.

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In fact, at the 8:30 minute mark, the guys even mention a certain Hyper-V session :) Thanks, lads!

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I love a free promo!

Check out the schedule builder if you are attending, and maybe even the CH9 Events app on your mobile device to have a handy digital builder with you on site.

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2014
09.16

Windows 9 steals the headlines this morning. No; it is not out. No; you cannot download a preview yet. And yes; the person you know who says otherwise is an idiot. We know what we know – Microsoft is planning a sneak peek event for the enterprise audience on September 30th. There are no more facts than that.

Hyper-V

  • Emulex’s crappy drivers saga goes on: They claimed they fixed the VMQ issue. It looks like they never did any tests involving Live Migration.

System Center

Windows

  • It’s Official – Microsoft to Unveil “Next Chapter” for Windows on September 30: I think Paul Thurrott was the first to report this. It will focus on the enterprise audience – the one currently sticking with Windows 7. I guess it will be no more than a show and tell. I still believe TechEd Europe is the bigger reveal, as I reported back at TechEd North America. In the meantime, ignore every rumour and “expert” that you work with or is in the general media.

Azure

  • Azure Websites Virtual Network Integration: This is big – Azure Websites is happy to announce support for integration between your Azure VNET and your Azure Websites. Now you can integrate your websites with your VMs – in preview and only for Standard websites with up to 1 VNet connected.
  • How to host a Scalable and Optimized WordPress for Azure in minutes: Deploy the new instance from the preview portal, and be able to scale WordPress out to meet demand. Very nice solution – I could have used that for this site!
  • Azure Active Directory Basic is now GA: Azure AD Basic is now available for purchase through the volume-licensing channel – if like Premium then it will only be available through large enterprise VL programs, i.e. not Open, etc, but I don’t think SMEs want this feature, although they would like Azure RMS.

Security

Gaming

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2014
09.15

And in other news, I’ve run out of stock of my super-duper Windows 9 tablets powered by i9 processors.

Hyper-V

  • The Virtualization Fabric Design Considerations Guide is now available online and for download: This guide details a series of steps and tasks that you can go through to design a virtualization fabric that best meets the requirements of your organization. Throughout the steps and tasks, the guide presents the relevant design and configuration options available to you to meet functional and service quality (such as availability, scalability, performance, manageability, and security) requirements.

System Center Data Protection Manager

Azure

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2014
09.12

The big news yesterday was the leaking of screenshots of Windows “Threshold” (9). Most of them were more of the same, but we saw confirmation of some recently rumoured changes.

Windows

System Center Operations Manager

System Center Data Protection Manager

Azure

  • StorSimple Snapshot Manager: StorSimple Snapshot Manager is a Microsoft Management Console (MMC) snap-in that simplifies data protection and backup management in a Microsoft Azure StorSimple environment. You can use StorSimple Snapshot Manager to configure backup schedules and retention policies, generate on-demand backups, and clone or restore volumes.
  • The Microsoft Azure Sales Strategy for Small and Medium Enterprises: An article by me on Petri.com
  • Announcing Long Term Retention for Azure Backup: Previously, we had announced long term retention for cloud backups from DPM. With this month’s release of the Azure Backup service, we are extending that capability to cloud backups from all currently supported SKUs of Windows Server and Windows Server Essentials.
  • Getting started with Azure Backup: It’s nice and easy, but resellers really could use a central portal.

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Retaining my backup of PowerShell scripts for 9 years!

Windows Intune

  • Intune to support iOS 8 on Day 0: Next week iOS 8 will be released to the public, and the Windows Intune service will be ready on Day 0 to manage devices on this new version of the platform. With Managed Domains, enterprise data will be tracked from its source, which will allow management systems to better separate corporate from personal data. Document Extensions will provide significant interaction between applications, introducing new extensibility opportunities that iOS hasn’t had previously.
  • Day Zero Support for iOS 8 with Intune: Earlier this week Apple released iOS 8 to developers (public release on 9/17), and the Windows Intune service is ready to support your use of it.
  • Data sent to and from Windows Intune and System Center 2012 R2 Configuration Manager: As a Windows Intune customer, you have entrusted Microsoft to help protect your data. Microsoft values this trust, and the privacy and security of your data is one of our top concerns.

Office 365

  • Microsoft withdrew KB2889866 from Windows Update: "We are investigating an issue that is affecting the September 2014 update for Microsoft OneDrive for Business. Therefore, we have removed the update from availability for now. We apologize for any inconvenience that this might cause." < You wouldn’t care if you followed my "wait 1 month before approving updates" advice.
  • Office 365 Certificate Update Will Affect Some Exchange Deployments: On Sept. 23, 2014, Microsoft is planning a certificate change to the Microsoft Federation Gateway. Organizations that have hybrid networks combining Office 365 services with Exchange Server or that use the Microsoft Federation Gateway to establish trust relationships need to set up a certificate update process before the Sept. 23 deadline to "avoid any disruption" in service, according to Microsoft’s Wednesday announcement.

Security

  • Azure Rights Management Administration Tool: Azure Rights Management Administration Tool installs the Windows PowerShell module for Azure Rights Management. Azure Rights Management provides the ability to enable the use of digital rights management technology in organizations that subscribe to the Office 365 services.

Miscellaneous

  • Microsoft stock hits highest price since 1999: With that in mind, Microsoft’s stock has hit a 52-week high today (Sept 6th), coming in at $45.93 at the time of closing, suggesting that Wall Street appears to approve of new CEO Satya Nadella’s direction for the company. FYI – the stock is now at $47.
  • Forget Conventional Wisdom, Microsoft (MSFT) Is A Growth Stock Again: Microsoft sales are growing at an annualized rate of over 25 percent again and the stock is up over 30 percent in the ensuing 7 months, well over double the increase in the broader market during that time.
  • (UK Government, William) Hague reassures MPs of data safety in Microsoft’s Dublin Data Centre: William Hague, the leader of the House of Commons, said there is nothing to fear after an MP said he was concerned about the security of parliamentary data stored on Microsoft’s Cloud-based servers in Europe. Billy-boy should read the news more, as one of his colleagues points out. This is exactly why Microsoft is fighting the US government on foreign-located data access.
2014
09.11

More Azure changes. Keeping up with this is difficult!

Azure

  • More changes announced: VPN Support for Azure Websites, Scalable CMS in the app gallery, role-based access control, and more stuff were announced yesterday.
  • Update for Azure Backup for Microsoft Azure Recovery Services Agent: The agent now supports weekly backups with 120 retention points, and 9 years of retention (one recovery point every 4 weeks). You can use this version of the agent together with the Microsoft Azure Site Recovery service to protect virtual machines that are running on Windows Server 2012 R2 CORE SKU and Microsoft Hyper V Server 2012 R2 into Azure.

Office 365

Legal

2014
09.10

In other news, Apple proves that wearable devices are a pointless Gartner-esque fad, and those preachy tax-avoiding frakkers, U2, suck donkey balls.

Hyper-V

System Center Operations Manager

  • OM12 Sizing Helper: This is a Windows Phone app version of the OpsMgr 2012 Sizing Helper document.

Azure

Miscellaneous

  • Microsoft rumored to be poised to buy Minecraft creator for $2 billion: This blocky game is the hottest thing with kids. I’ve spent many an hour *cough* helping *yes, helping* with constructions & adventures on an iPad and Xbox. And to be honest, it is a good problem solving game and it encourages kids to interact, based on what I’ve observed.
2014
09.10

Both Windows Server 2012 and Windows Server 2012 R2 (as well as their desktop OS and RT variants) received update rollups last night.

You know the drill: only install these updates before they are one month old if you want to shut down your business, get fired, and become an IT pariah. Let some other mug do the testing for you. You can do your own pilot testing and approve after that.

The WS2012 release includes a fix for SMB troubleshooting (including other fixes):

  • 2980749 Event log data for troubleshooting SMB in Windows 8 and Windows Server 2012

The WS2012 R2 release highlights for me are:

  • KB2984324 Clussvc.exe or cluster node crashes when a node sends a message to another node in a Windows Server 2012 R2 cluster
  • KB2982348 Broadcast storm occurs after a virtual switch duplicates a network packet in Windows 8.1
  • KB977219 Updates to improve the compatibility of Azure RemoteApp in Windows 8.1 or Windows Server 2012 R2
2014
09.10

Microsoft posted a fix for Windows Server 2012, Windows 8, Windows Server 2012 R2, Windows 8.1, Windows Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2 for when multipath I/O identifies different disks as the same disk in Windows.

Symptoms

The code in Microsoft Windows that converts a hexadecimal device ID to an ASCII string may drop the most significant nibble in each byte if the byte is less than 0×10. (The most significant nibble is 0.) This causes different disks to be identified as the same disk by Multipath I/O (MPIO). At the very least, this may cause problems in mounting affected disks. And architecturally, this could cause data corruption.

Resolution

When you apply this hotfix, the conversion algorithm is fixed. Disks that were masked by this issue before you installed the hotfix may be raw disks that still have to be partitioned and formatted for use. After you apply this hotfix, check in Disk Management or Diskpart for previously hidden disks.

A supported hotfix is available from Microsoft Support.

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