Understanding Pool Corruption Part 3 – Special Pool for Double Frees

In Part 1 and Part 2 of this series we discussed pool corruption and how special pool can be used to identify the cause of such corruption.  In today’s article we will use special pool to catch a double free of pool memory.   A double free of…(read more)

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I/O Performance impact of running Start-DedupJob with –Priority High

My name is Steven Andress and I am a Support Escalation Engineer with Microsoft’s Platforms Support Team. This is a short blog post to alert you to a condition you might encounter when running a deduplication job using the Start-DedupJob PowerShell…(read more)

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Troubleshooting Adventure: A Real Life Memory Pool Leak

Hi this is Jerry Devore with my first blog contribution. I am dedicated Premier Field Engineer specializing in Active Directory for a couple enterprise customers in the mid-west. Dedicated PFEs are generally embedded with Premier customer’s architects and operational staff with the primary objective of understanding their environment so we can provide proactive guidance around…

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Event ID 157 "Disk # has been surprise removed"

Hello my name is Bob Golding and I would like to share information on a new error you may see in the system event log. It is Event ID 157 "Disk <n> has been surprise removed" with Source: disk.  This error indicates that the CLASSPNP…(read more)

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How to Build Your ADFS Lab on Server 2012, Part2: Web SSO

Mark and Tom here again, continuing our series on ADFS. In this post, we'll show you how to use some sample-code to configure a web application for Web Single Sign-On (Web SSO) with ADFS. What's Web SSO? While Federated Web Single Sign-on (henceforth, SSO) is when two organizations create a federation trust between each other…

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Scale Out File Servers on Windows Server 2012

Hey y’all Mark here with a quick post. We wanted to call attention to some fabulous work another Microsoft blogger has done. You may have heard of him. Ned ‘I’m famous on the internet’ Pyle. Old Ned use to be the editor in chief of AskDS until he left for the mother ship to help…

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Free ebook: Introducing Microsoft System Center 2012 R2

If you work with Hyper-V, you very well also use System Center to manage it. If you do not use System Center, you should download this free ebook and give it a review. We’re happy to announce a new free ebook – Introducing Microsoft System…(read more)

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Cannot Extend Simple Virtual Disk in Windows Server 2012 R2

I’m writing this blog to help shed some light on extending simple virtual disks in Windows Server 2012 R2. We have had questions from various customers that have been using simple virtual disk and need to add more space to them. Let’s say…(read more)

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Domain and DC Migrations: How To Monitor LDAP, Kerberos and NTLM Traffic To Your Domain Controllers

Hi everyone Adrian Corona here, this time I’d like to talk about a scenario that I get asked about a lot: Domain / Domain Controller Migrations. A very (if not the most) important piece of a successful migration is to know when there’s a system or application still using your domain services before decommissioning your…

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