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Moving Virtual Machine Storage in Windows Server 2012 #Hyperv #WS2012

Moving Virtual Machine Storage

In Windows Server 2008 R2, you can move a running instance of a virtual machine using live migration, but you are not able to move the virtual machine’s storage while the virtual machine is running. Hyper-V in Windows Server 2012  introduces support for moving virtual machine storage without downtime by making it possible to move the storage while the virtual machine remains running. You can perform this task by using a new wizard in Hyper-V Manager or by using new Hyper-V cmdlets for Windows PowerShell. You can add storage to either a stand-alone computer or to a Hyper-V cluster, and then move virtual machines to the new storage while the virtual machines continue to run. The most common reason for moving a virtual machine’s storage is to update the physical storage that is available to Hyper-V. You can also move virtual machine storage between physical storage devices, at run time, to respond to reduced performance that results from bottlenecks in the storage throughput.

Requirements

You need the following to use the Hyper-V functionality of moving virtual machine storage:

* One or more installations of Windows Server 2012 with the Hyper-V role installed.

( Windows Server 2012 RTM Becomes available on September 4 )

* A server that is capable of running Hyper-V. Specifically, it must have processor support for hardware virtualization.

* Virtual machines that are configured to use only virtual hard disks for storage.

NOTE :  You cannot move the storage of a virtual machine when any of its storage is directly attached to a physical disk.

Technical overview
This new feature allows you to move the virtual hard disks of a virtual machine while those virtual hard disks remain available for use by the running virtual machine. When you move a running virtual machine’s virtual hard disks, Hyper-V performs the following steps, as shown in Figure 1:

1. Throughout most of the move operation, disk reads and writes go to the source virtual hard disk.

2. While reads and writes occur on the source virtual hard disk, the disk contents are copied to the new destination virtual hard disk.

3. After the initial disk copy is complete, disk writes are mirrored to both the source and destination virtual hard disks while outstanding disk changes are replicated.

4. After the source and destination virtual hard disks are completely synchronized, the virtual machine switches over to using the destination virtual hard disk.

5. The source virtual hard disk is deleted.

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Overview of Cluster Shared Volumes (CSV) in Windows Server 2012 #WS2012 #Hyperv

Cluster Shared Volumes (CSV) overview:  Windows Server 2012

CSV is a distributed file access solution that provides multiple nodes in the cluster with simultaneous access to the same file system. Virtual machines or applications that run on CSV are no longer bound to storage, and they can share a common disk to reduce the number of LUNs, as shown in the following figure. Live migration of virtual machines becomes faster because volume ownership does not need to change.

CSV does not impose any special hardware, file type, or directory structure restrictions. CSV uses the well-established NTFS file system.

What CSV delivers in Windows Server 2012

In Windows Server 2012, CSV supports new features in addition to the features that are supported in Windows Server 2008 R2.
CSV continues to support virtual machines, and it has been enhanced as follows:

* Expansion of CSV to support more workloads including File Server for scale-out application data, and possibly more

* Enhanced backup and restore of CSV volumes

* Multiple-subnet support

* Simplified set up for CSV by using Failover Cluster Manager

* Support for Server Message Block 3.0 (SMB) file-based storage for Hyper-V

* Better virtual machine creation and copying experience because copying can be performed from any node with the same high performance

* Support for BitLocker volume encryption for CSV volumes

* Improved I/O redirection to support block-level I/O and increased performance that results from multiple-subnet support

* Improved CSV performance by allowing direct I/O for more scenarios

* Support for memory mapped files

* Integration with new file system features such as copy-offload, defragmenting of CSV volumes, and online corruption repair.

CSV proxy file system
CSV volumes now appear as CSVFS. The underlying technology is still the NTFS file system, and volumes are still formatted with NTFS. Because volumes appear as CSVFS, applications can discover that they are running on CSV, which helps improves compatibility. CSV provides a single consistent file name space. Files have the same name and path when viewed from any node in the cluster. CSV volumes are exposed as directories and subdirectories under the ClusterStorage root directory. In Windows Server 2012, CSV uses standard mount points for better interoperability with:

* Performance counters.

* System Center Operations Manager.

* Monitoring free space on CSV volumes.

* File system minifilter drivers (to allow improved interoperability with antivirus software and backup software).

Multiple-subnet support for Cluster Shared Volumes

In Windows Server 2012, CSV has been enhanced to integrate with SMB Multichannel. This helps achieve faster throughput for CSV volumes, especially when they are working in redirected mode. Applications can still have fast data access even with CSV in redirected mode. CSV traffic can now stream across multiple networks, which delivers improved I/O performance when in redirected mode. CSV also leverages SMB Direct (SMB over Remote Direct Memory Access), on network adapters that support this.

Security and encryption support for traditional clustered disks and CSVs

Failover clusters that are running Windows Server 2012 support BitLocker volume encryption for both traditional clustered disks and CSVs. Each node performs decryption by using the computer account for the cluster itself. This account is also called the cluster name object (CNO). This action enables physical security for deployments outside secure data centers and meets compliance requirements for volume-level encryption.

Ease of file backup with CSV

In Windows Server 2012, CSV helps achieve a seamless backup experience for both backup applications and backup requestors. CSV includes:

* Distributed CSV backup infrastructure for Software Snapshot and coordination of CSV snapshot creation.

* Support for parallel backups across CSV volumes and across cluster nodes.

* Application-consistent and crash-consistent Volume Shadow Copy Service (VSS) snapshot support with a full feature set.

* Increased support for both hardware and software backup of CSV volumes.

* Direct I/O mode for snapshot and backup operations.

* Support for using Windows Server Backup (included in Windows Server 2012 RC) for CSV backups.

* Support for incremental backups.

* Full compatibility support for requestors that are running Windows Server 2008 R2.

The following figure shows application-consistent and crash-consistent backup on CSV.


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#Microsoft Windows Server 2012 Technical Library Overview #WS2012 #Hyperv

Welcome to the Windows Server 2012 Technical Library.

This library provides the core content that IT pros need to evaluate, plan, deploy, manage, troubleshoot, and support servers running the Windows Server 2012 operating system. To find the content you need, browse the content listed below, or use our search feature. If you need help with using Windows at home, see Windows Help and How-To.

  • What’s New in Windows Server 2012 The content contained in this section describes what’s new and changed in Windows Server 2012. This content focuses on changes that will potentially have the greatest impact on your use of this release.
  • Technical Scenarios for Windows Server 2012 These technical scenarios provide guidance that addresses an area of interest or particularly compelling capability enabled by Windows Server 2012
  • Install and Deploy Windows Server 2012 This section provides information about how to migrate to, install, and deploy Windows Server 2012.
  • Migrate Roles and Features to Windows Server 2012 Migration documentation and tools ease the process of migrating server roles, features, operating system settings, and data from an existing server that is running Windows Server 2003, Windows Server 2008, Windows Server 2008 R2, or Windows Server 2012 to a computer that is running Windows Server 2012.
  • Secure Windows Server 2012 To help you locate resources to secure your servers running Windows Server 2012, this section includes essential assessment tools, reference documentation, and product offerings.
  • Manage Privacy in Windows Server 2012 This section offers not only guidance about managing privacy-related settings in Windows Server 2012, but also links that can be useful to administrators and others concerned about privacy.
  • Support Windows Server 2012 This section contains information to help IT pros find workarounds for known issues in Windows Server 2012, and troubleshoot and resolve specific Windows Server 2012 system errors and events.
  • Server Roles and Technologies in Windows Server 2012 This section contains information to design, deploy, manage, and troubleshoot technologies in Windows Server 2012.
  • Management and Tools for Windows Server 2012This section contains tool and reference information for IT pros using Windows Server 2012.
    • Windows PowerShell Support for Windows Server 2012 This topic lists the Windows PowerShell modules included with Windows Server 2012 and Windows 8. The Windows PowerShell modules in the list support automating the features of those operating systems and provide links to the cmdlet references for each module. These modules enable you to use Windows PowerShell to administer, maintain, configure, and develop new features for Windows Server 2012 and Windows 8.
    • Manage Multiple, Remote Servers with Server Manager The content in this section describes how to use Server Manager in Windows Server 2012 to manage both local and remote Windows-based servers from desktop computers.
    • Deploy Remote Server Administration Tools for Windows 8 The content in this section describes how to download and install the tools that help IT pros manage remote computers that are running Windows Server 2012.
    • Deploy Windows PowerShell Web Access The content in this section describes how to configure and use Windows PowerShell Web Access, a new feature in Windows Server 2012 that allows a server that is running Web Server (IIS) to act as a Windows PowerShell gateway and provide a web-based Windows PowerShell console to users in your organization.
    • Getting Started with Windows PowerShell Workflow The content in this section describes Windows PowerShell Workflow, a new feature in Windows 8 and Windows Server 2012 that lets IT pros and developers leverage the benefits of workflows with the automation capabilities and ease of Windows PowerShell.
    • Command-Line Reference for Windows Server 2012 The content in this section describes the command-line tools that enable IT pros to create batch files or scripting tools that automate common management tasks.


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#Microsoft Virtual Machine Servicing Tool 2012 #SCVMM #VMST #WSUS

VMST 2012 Workflow

Download here Microsoft Virtual Machine Servicing Tool (VMST) 2012

Overview

Virtual Machine Servicing Tool (VMST) 2012 is designed to work with System Center 2012 –Virtual Machine Manager (VMM), System Center 2012  Configuration Manager and Windows Server Update Services  (WSUS) 3.0 SP2.
VMST 2012 helps you reduce IT costs by making it easier to update your offline virtual machines, templates, and virtual hard disks with the latest operating system and application patches—without introducing vulnerabilities into your IT infrastructure.

The installation :

Configuration the Tool :