Critical updates for S2D and Hyper-V

Microsoft released a new update for Windows Server 2016 (14393.2580) that fixes a bunch of critical issues in S2D and Hyper-V (FCI) environments:

  • Addresses an issue that depletes the storage space on a cluster-shared volume (CSV) because of a Hyper-V virtual hard disk (VHDX) expansion. As a result, a Virtual Machine (VM) might continue writing data to its disk until it becomes corrupted or stops working. The VM might also restart and then resume writing data until a corruption occurs.
  • Addresses an issue that occurs when using multiple Windows Server 2016 Hyper-V clusters. The following event appears in the log:

    “Cluster Shared Volume ‘CSVName’ (‘CSVName’) has entered a paused state because of ‘STATUS_USER_SESSION_DELETED(c0000203)’. All I/O will temporarily be queued until a path to the volume is reestablished.”

  • Addresses an issue that may cause the creation of a single node cluster or the addition of more nodes to a cluster to fail intermittently.
  • Addresses an issue that occurs when restarting a node after draining the node. Event ID 5120 appears in the log with a “STATUS_IO_TIMEOUT c00000b5” message. This may slow or stop input and output (I/O) to the VMs, and sometimes the nodes may drop out of cluster membership.
  • Addresses an issue that may cause the addition of nodes to fail intermittently after creating a single node in a Windows Server 2016 Cluster. The error code is, “0x0000001e”.

This update also resolves the following issues:

It’s highly recommended to apply the update as soon as possible.

Windows Server 2019 Webinar

Windows Server 2019 is set to get its full release and the signs look good. Very good.

Unless you’re part of the Windows Server insider program which grants you access to the latest Windows Server Preview builds you probably haven’t had a hands on experience yet with Windows Server 2019 but the guys over at Altaro have and are preparing to host a webinar on the 3rd of October to tell you all about it.

The webinar will be held a week after Microsoft Ignite so it will cover the complete feature set included in the full release as well as a more in depth look at the most important features in Windows Server 2019.

Whenever a new version of Windows Server gets released there’s always a lot of attention and media coverage so it’s nice to have an hour long session where you can sit back and let a panel of Microsoft experts cut through the noise and give you all the information you need.

It’s also a great chance to ask your questions direct to those with the inside knowledge and receive answers live on air.

Over 2000 people have now registered for this webinar and I’m going to be joining too. It’s free to register what are you waiting for?

Save your seat!