Browse by Tags

Tagged Content List
  • Blog Post: Issues on Windows Server 2012 and 2012 R2 with VMQ and Emulex network adapters

    There have been several reports of networking and stability issues on Windows Server 2012 and Windows Server 2012 R2 when deployed on hosts equipped with Emulex NICs. These issues arise when VMQ is enabled. The typical symptoms include the loss of network connectivity on one or more virtual machines...
  • Blog Post: Debugging performance issues with VMQ

    In my last posts about VMQ (virtual machine queues), VMQ Deep Dive, 1 of 3 , I tried to give readers a thorough understanding on the technology and why it was needed. Unfortunately, I still feel like there’s a piece missing around troubleshooting suspected VMQ issues. Therefore, in this blog post I’d...
  • Blog Post: VMQ Deep Dive, 2 of 3

    Introduction In my last blog post of this series, ‘ VMQ Deep Dive, 1 of 3 ,’ I went into detail on why we implemented VMQ and how to view the VMQ settings on the adapter to verify that it was configured properly. In this blog post I am going to explain Static v Dynamic VMQ and then outline...
  • Blog Post: VMQ Deep Dive, 3 of 3

    Introduction At this point I’m hoping everyone has had the opportunity to read my two previous blogs on VMQ, VMQ Deep Dive 1 and VMQ Deep Dive 2 , and are more knowledgeable about the offload and when to use it. In this last post of this series, I want to go into on how to monitor and troubleshoot problems...
  • Blog Post: VMQ Deep Dive, 1 of 3

    Virtual Machine Queues (VMQ) is an incredibly powerful performance technology introduced in Windows Server 2012. A concern we’ve noticed as Windows Server 2012 is increasingly deployed in datacenter environments is misconceptions about VMQ, and even “tribal knowledge” that disabling...