Category Archives: Windows Server

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Announcing Windows Server Insider Preview Build 17074

Hello Windows Insiders!
Today we are releasing Windows Server Insider Preview Build 17074 to Windows Insiders. This build is a preview build of the next Semi-Annual Channel release of Windows Server. For more information on the Semi-Annual channel, please see the Windows Server Semi-Annual Channel overview
Available Content
Server Insiders have the choice of Server Core Edition in ISO or VHDX format. The images are pre-keyed – no need to enter a key during setup.
Symbols are available on the public symbol server – see Update on Microsoft’s Symbol Server blog post and Using the Microsoft Symbol Server. As before, matching Windows Server container images will be available via Docker Hub. For more information about Windows Server containers and Insider builds, click here.
This Server Insider pre-release build will expire on July 2nd, 2018. For the best experience, the Windows Server team recommends a clean install.
What’s New in Build 17074 for Windows Server
Storage Spaces Direct (S2D)
In this preview build we continue to expand and simplify the hardware for Storage Spaces Direct.  SCSI Enclosure Services (SES) is no longer required for Storage Spaces Direct to be compatible, this unlocks a breath of new hardware which was not capable of running S2D.  Storage Spaces Direct now also supports Persistent Memory (aka. Storage Class Memory), this unlocks a new class of extremely low latency storage which is incredibly interesting in particular as a caching device.  Storage Spaces Direct now also supports Direct-connect SATA devices to AHCI controller, again this will expand the hardware ecosystem compatible with S2D as well as unlock a new class of low cost hardware.  In this preview we have also enabled the Cluster Shared Volumes (CSV) Cache is enabled by default, which delivers an in-memory write-through cache that can dramatically boost VM performance.

Failover Clustering
In this preview we have introduced enhancements to Azure enlightened Failover Clusters, with enhanced eventing on host maintenance events and nodes about to be in host maintenance are excluded from placement.  By making high availability software running inside of an Azure IaaS VM be aware of maintenance events of the host, it can help deliver the highest levels of availability for your applications.

Dedup support for ReFS and Storage Spaces Direct
How to Download 
To obtain the Insider software downloads, registered Insiders may navigate directly to the Windows Server Insider Preview download page.  If you have not yet registered as an Insider, see GETTING STARTED WITH SERVER on the Windows Insiders for Business portal.
It’s all about your feedback! 
The most important part of a frequent release cycle is to hear what’s working and what needs to be improved, so your feedback is extremely valued. Use your registered Windows 10 Insider device and use the Feedback Hub application. In the app, choose the Server category and then the appropriate subcategory for your feedback. Please indicate what build number you are providing feedback on.
Known issues with Windows Server build 17074
Testing of the Windows core may fail because of a timeout while attempting to load the test libraries.
Terms of Use
All pre-release software made available to you via the Windows Server Insider program are governed by the Insider Terms of Use, which takes precedence over any license agreement that may be in the product.
No downtime for Hustle-As-A-Service,
Dona

Announcing Project Honolulu Technical Preview 1712 Build 05002

Hello Windows Insiders!
Today we are releasing Project Honolulu Technical Preview 1712 Build 05002 to Windows Server Insiders.
Project Honolulu is a flexible, lightweight browser-based customer-deployed platform and solution for Windows Server management scenarios for troubleshooting, configuration and maintenance. Project Honolulu Technical Preview 1712 Build 05002 is now available to Insiders before the public.
What’s New in Project Honolulu Technical Preview 1712 Build 05002
We’ve added a couple top requested features in Virtual Machines and continued with the performance enhancements that lead to faster load times and page rendering.
Virtual Machines
Based on high customer request, we now support viewing and changing VM settings while a VM is running, similar to how you can in Hyper-V Manager. On Generation 2 VMs, you can change general settings, memory setting, checkpoint setting and add disks and network adapters.
You can also enable nested virtualization when creating a VM, or from the processor settings of an existing (stopped) VM. This is functionality that was previously only accessible from the command line.
Events
Administrative events are now displayed.
Performance improvements
The new data grid control has been added to all tools except the HCI solution and Storage Replica.
We have started rolling out a new tree control with the same scale and performance improvements as the new data grid. The new tree control is implemented in the Files and Registry tools.
How to Download 
To obtain the Insider software downloads, registered Insiders may navigate directly to the Windows Server Insider Preview download page.  If you have not yet registered as an Insider, see GETTING STARTED WITH SERVER on the Windows Insiders for Business portal.
Known Issues with Project Honolulu Technical Preview 1712 Build 05002
There are no new known issues specific to this release. You can find the complete list of known issues in Project Honolulu here.
If you encounter bugs please post on the Project Honolulu space on Windows Server Tech Community.
Terms of Use
All pre-release software made available to you via the Windows Server Insider program are governed by the Insider Terms of Use, which takes precedence over any license agreement that may be in the product.
No downtime for Hustle-As-A-Service,
Dona

Announcing Windows Server Insider Preview Build 17046

Hello Windows Insiders!
Today we are releasing Windows Server Insider Preview Build 17046 to Windows Server Insiders. This build is the second preview build of the next Semi-Annual Channel release of Windows Server. For more information on the Semi-Annual channel, please see the Windows Server Semi-Annual Channel overview
Available Content
Server Insiders have the choice of Server Core Edition in ISO or VHDX format. The images are pre-keyed –  no need to enter a key during setup.
Symbols are available on the public symbol server – see Update on Microsoft’s Symbol Server blog post and Using the Microsoft Symbol Server. As before, matching Windows Server container images will be available via Docker Hub. For more information about Windows Server containers and Insider builds, click here.
This Server Insider pre-release build will expire on July 2nd, 2018. For the best experience, the Windows Server team recommends a clean install.
What’s New in Build 17046 for Windows Server
There are no new features to announce for this build.
How to Download 
To obtain the Insider software downloads, registered Insiders may navigate directly to the Windows Server Insider Preview download page.  If you have not yet registered as an Insider, see GETTING STARTED WITH SERVER on the Windows Insiders for Business portal.
It’s all about your feedback! 
The most important part of a frequent release cycle is to hear what’s working and what needs to be improved, so your feedback is extremely valued. Use your registered Windows Insider device and use the Feedback Hub application. In the app, choose the Server category and then the appropriate subcategory for your feedback. Please indicate what build number you are providing feedback on.
Known issues with Windows Server build 17046
[NEW] Dynamic disks fail I/O with STATUS_INVALID_DEVICE_REQUEST, resulting in failures to mount or format a volume. The contents of an affected volume will be available after updating to a build that fixes this issue, so reformatting and restoring data from backup is not necessary.
Upgrading to recent pre-release builds of Windows Server is not currently an option. However, upgrading will be supported in the future.
The Health Attestation CSP fails with error message 500 when attempting to get a certificate.
Data corruption may occur on some NVM Express (NVMe) solid-state drives (SSD) if scatter-gather list (SGL) functionality is enabled.
The base filtering engine (BFE) service may fail to start, which prevents the Windows Defender firewall (MpsSvc service) from starting.
A system crash may occur because of a kernel security check failure (bug check 0x139) from a corrupt list entry in a deferred free pool.
Hyper-V isolated containers will fail to start with an error of “The description string for parameter reference (%1) could not be found. (0x3ab6)”. Users can work around this by temporarily disabling our cloning optimization by creating a registry key and rebooting or restarting the vmcompute service.
reg ADD “HKLMSOFTWAREMicrosoftWindows NTCurrentVersionVirtualizationContainers” /v TemplateVmCount /t REG_DWORD /d 0
Although installation will continue successfully, the product key will not activate.
 Terms of Use
All pre-release software made available to you via the Windows Server Insider program are governed by the Insider Terms of Use, which takes precedence over any license agreement that may be in the product.
No downtime for Hustle-As-A-Service,
Dona

Windows Subsystem for Linux on Windows Server

The Windows Subsystem for Linux (WSL) is available in Windows Insider builds of Windows Server. Now developers and application administrators can run tools they use in Linux environments alongside Cmd and PowerShell.
If you want to jump straight in, the installation guide is available here.
Why include WSL on Windows Server?
We want Windows, including Windows Server, to be a great place for developers. We know developers, system administrators, people managing services and people building services all occasionally need tools available on Linux.  Many more would like to run Linux tools as part of their workflow as a matter of convenience.
Previously, there were a few options:
Run something like Cygwin and rely on Win32 ports of common GNU tools.
Cygwin is a great toolset but it runs into issues when using tools that haven’t been ported to Windows. Many tools simply aren’t available. This is especially common when trying to build and run Ruby & Java solutions, which utilize some Linux-only Gems, libraries and components.
The tools available through Cigwin and other Win32 ports are also notorious for being out of date – which is understandable since updating them requires recompiling them for Windows. For Windows users, however, this is both inconvenient and often leads to troublesome compatibility issues when running, building or deploying software.
Use Linux in a virtual machine.
Virtual machines are designed for production workloads on Windows Server. They aren’t ideal for things closely tied to the Windows Server host. If you need basic Linux command-line tools integrated with their Windows system, a virtual machine will be cumbersome.
This is where running Linux on WSL provides value: WSL runs unmodified Linux (ELF64) binaries natively. It can install and run almost any Linux command-line tool integrated in Windows.
With the additions of WSL and Linux containers with Hyper-V isolation, Windows Server offers a wide variety of Linux options that make it a great place and platform for modern developers.
If you’re a server engineer that needs to run node.js, Ruby, Python, Perl, Bash scripts or other tools that expect Linux behaviors, environment or filesystem-layout, the ability to install and run Linux with WSL expands the tools at your disposal on Windows Server.
What this isn’t — WSL is not a Linux server
Just as with WSL on Windows Client, you can run daemons and jobs like MySQL, PostgreSQL, sshd, etc., via an interactive shell, but you cannot currently use WSL to run persistent Linux services, daemons, jobs, etc. as background tasks.
For these sorts or tools, read more about Linux containers with Hyper-V isolation from the Build 2017 announcement.
How do I get started using WSL on Server?
Windows Subsystem for Linux arrived in Windows Server Insider Build 16237. Follow our new Windows Server WSL Installation Instructions to get started running Linux alongside Cmd and PowerShell on your Servers.
Feel free to comment below or reach out to Sarah and Rich via Twitter.