V Live

-->

  1. SEVENTEEN Members 5,888,381.
  2. Watch live Pre-season Trials, Shows, Press Conferences and much more.
  3. Watch UFC 265: Lewis vs. Gane LIVE COVERAGEJoin the backstage access as fighters speak about their post-fight thoughts w/ Jim Grieshaber and Jeff Cain as t.

Channel's video. 🔴LIVE NOW🔴 BTS 'One Amazing Summer Day with ARMY' & 'Lucky Box 2021' SIGN UP HERE.

Applies To: Windows Server 2012 R2, Windows Server 2012

Hyper-V live migration moves running virtual machines from one physical server to another with no impact on virtual machine availability to users. Hyper-V in Windows Server 2012 and Windows Server 2012 R2 introduce the following live migration improvements:

Faster and simultaneous migration.

In Windows Server 2012 live migrations are now able to utilize higher network bandwidths (up to 10 Gigabit) to complete migrations faster. You can also perform multiple simultaneous live migrations to enable you to move many virtual machines quickly. These changes allow you to implement high levels of mobility and flexibility in private cloud solutions.

In Windows Server 2012 R2 Hyper-V live migration has been updated to allow the administrator to select the optimal performance options when moving virtual machines to a different server. In larger scale deployments, such as private cloud deployments and hosting providers, this update can reduce the amount of time it takes to move a virtual machine to another server running Hyper-V. The reduction in time to move a virtual machine can also reduce overhead on the network and CPU usage. For more information about live migration performance options, see Performance options.

Live migration outside of a clustered environment.

In Windows Server 2012, you can configure a virtual machine so that it is stored on an SMB file share. You can then perform a live migration on this running virtual machine between non-clustered servers running Hyper-V, while the virtual machine’s storage remains on the central SMB share. This allows users to gain the benefits of virtual machine mobility without having to invest in the clustering infrastructure if they do not need guarantees of availability in their environment. (Hyper-V with SMB storage can also be configured with Failover Clustering if you do require high availability. For information about different configurations of Hyper-V with SMB storage, see Deploy Hyper-V over SMB.)

You can also perform a live migration of a virtual machine between two non-clustered servers running Hyper-V when you are only using local storage for the virtual machine. (This is sometimes referred to as a “shared nothing” live migration. In this case, the virtual machines storage is mirrored to the destination server over the network, and then the virtual machine is migrated, while it continues to run and provide network services. For instructions, see Configure Live Migration and Migrating Virtual Machines without Failover Clustering.

This functionality allows live migration in the most basic deployments and in more advanced scenarios, such as performing a live migration for a virtual machine between multiple, separate clusters to load balance across an entire data center.

Cross version live migration

Upgrading to a new version of Windows Server no longer requires downtime to the virtual machines. In Windows Server 2012 R2 Hyper-V live migration has been updated to support migrating Hyper-V virtual machines in Windows Server 2012 to Hyper-V in Windows Server 2012 R2.

When moving a virtual machine on Windows Server 2012, the specified destination server can now be a computer running Windows Server 2012 R2. This applies to a move that is initiated in Hyper-V Manager or when using the Move-VM Windows PowerShell cmdlet.

Note

Moving a Hyper-V virtual machine in Windows Server 2012 R2 to Hyper-V in Windows Server 2012 is not supported.

Key benefits

Live migration of virtual machines in Windows Server 2012 delivers improved performance and flexibility. It is also now available inside and outside of clustered environments—both with and without shared storage.

Requirements

Common requirements for any form of live migration:

  • Two (or more) servers running Hyper-V that:

    • Support hardware virtualization.

    • Use processors from the same manufacturer. For example, all AMD or all Intel.

    • Belong to either the same Active Directory domain, or to domains that trust each other.

  • Virtual machines must be configured to use virtual hard disks or virtual Fibre Channel disks (no physical disks). For more information on virtual Fibre Channel, see Virtual Fibre Channel.

  • Use of an isolated network, physically or through another networking technology such as VLANs, is recommended for live migration network traffic.

Requirements for live migration in a cluster:

  • Windows Failover Clustering is enabled and configured.

  • Cluster Shared Volume (CSV) storage in the cluster is enabled.

Important

Physical disks that are directly attached to a virtual machine (pass-through disks) are supported when all of the following conditions are met:

Requirements for live migration using shared storage:

  • All files that comprise a virtual machine (for example, virtual hard disks, snapshots, and configuration) are stored on an SMB share.

  • Permissions on the SMB share have been configured to grant access to the computer accounts of all servers running Hyper-V.

Requirements for live migration with no shared infrastructure:

  • No extra requirements exist.

Note

Physical disks that are directly attached to a virtual machine (pass-through disks) are not supported in live migration without shared storage (also known as “shared nothing” live migration).

Performance options

In larger scale deployments, such as private cloud deployments or cloud hosting providers, this update can reduce overhead on the network and CPU usage in addition to reducing the amount of time for a live migration. Hyper-V administrators can configure the appropriate live migration performance options based on their environment and requirements. Live migration performance options are configured on the host settings in the Hyper-V Manager console or via the Set-VMHost Windows PowerShell cmdlet and applies to all live migrations initiated from the host.

The following live migrations performance options are available.

OptionDescription
TCP/IPThe memory of the virtual machine is copied to the destination server over a TCP/IP connection. This is the same method that is used in Hyper-V in Windows Server 2012.
CompressionThe memory content of the virtual machine that is being migrated is compressed and then copied to the destination server over a TCP/IP connection. Note: This is the default setting in Hyper-V in Windows Server 2012 R2.
SMBThe memory content of the virtual machine is copied to the destination server over a SMB 3.0 connection.
- SMB Direct is used when the network adapters on the source and destination servers have Remote Direct Memory Access (RDMA) capabilities enabled.
- SMB Multichannel automatically detects and uses multiple connections when a proper SMB Multichannel configuration is identified.
For more information, see Improve Performance of a File Server with SMB Direct.

For information about how to modify the live migration performance options, see Step3: [optional] Configure performance options for live migration

Technical overview

Hyper-V live migration moves running virtual machines from one physical server to another with no impact on virtual machine availability to users. By pre-copying the memory of the migrating virtual machine to the destination server, live migration minimizes the transfer time of the virtual machine. A live migration is deterministic, which means that the administrator, or script, that initiates the live migration determines which computer is used as the destination for the live migration. The guest operating system of the migrating virtual machine is not aware that the migration is happening, so no special configuration for the guest operating system is needed.

After initiating a live migration, the following process occurs:

1. Live migration setup occurs.

During the live migration setup stage, the source server creates a connection with the destination server. This connection transfers the virtual machine configuration data to the destination server. A skeleton virtual machine is set up on the destination server and memory is allocated to the destination virtual machine.

2. Memory pages are transferred from the source node to the destination node.

In the second stage of a live migration, the memory assigned to the migrating virtual machine is copied over the network to the destination server. This memory is referred to as the “working set” of the migrating virtual machine. A page of memory is 4 KB.

For example, suppose that a virtual machine named “test virtual machine” configured with 1024 MB of RAM is migrating to another server running Hyper-V. The entire 1024 MB of RAM assigned to this virtual machine is the working set of “test virtual machine.” The utilized pages within the “test virtual machine” working set are copied to the destination server.

In addition to copying the working set of “test virtual machine” to the destination server, Hyper-V monitors the pages in the working set for “test virtual machine” on the source server. As memory pages are modified by “test virtual machine,” they are tracked and marked as being modified. The list of modified pages is simply the list of memory pages “test virtual machine” has modified after the copy of its working set has begun.

During this phase of the migration, the migrating virtual machine continues to run. Hyper-V iterates the memory copy process several times, with each iteration requiring a smaller number of modified pages to be copied. After the working set is copied to the destination server, the next stage of the live migration begins.

3. Modified pages are transferred.

The third stage of a live migration is a memory copy process that duplicates the remaining modified memory pages for “test virtual machine” to the destination server. The source server transfers the CPU and device state of the virtual machine to the destination server.

During this stage, the network bandwidth available between the source and destination servers is critical to the speed of the live migration. Using a 1 Gigabit Ethernet or faster is important. The faster the source server transfers the modified pages from the migrating virtual machines working set, the more quickly the live migration is completed.

The number of pages transferred in this stage is determined by how actively the virtual machine accesses and modifies the memory pages. The more modified pages there are, the longer it takes to transfer all pages to the destination server.

After the modified memory pages are copied completely to the destination server, the destination server has an up-to-date working set for “test virtual machine.” The working set for “test virtual machine” is present on the destination server in the exact state it was in when “test virtual machine” began the migration process.

Note

You can cancel the live migration process at any point before this stage of the migration.

4. The storage handle is moved from the source server to the destination server.

Live

During the fourth stage of a live migration, control of the storage associated with “test virtual machine,” such as any virtual hard disk files or physical storage attached through a virtual Fibre Channel adapter, is transferred to the destination server. (Virtual Fibre Channel is also a new Hyper-V feature in Windows Server 2012.)

5. The virtual machine is brought online on the destination server.

In the fifth stage of a live migration, the destination server now has the up-to-date working set for “test virtual machine,” as well as access to any storage used by “test virtual machine.” At this point “test virtual machine” is resumed.

6. Network cleanup occurs.

In the final stage of a live migration, the migrated virtual machine is running on the destination server. At this point, a message is sent to the network switch. This message causes the network switch to obtain the new the MAC addresses of the migrated virtual machine so that network traffic to and from “test virtual machine” can use the correct switch port.

The live migration process completes in less time than the TCP time-out interval for the virtual machine being migrated. TCP time-out intervals vary based on network topology and other factors. The following variables may affect live migration speed:

  • The number of modified pages on the virtual machine to be migrated—the larger the number of modified pages, the longer the virtual machine will remain in a migrating state.

  • Available network bandwidth between source and destination servers.

  • Hardware configuration of source and destination servers.

  • Load on source and destination servers.

  • Available bandwidth (network or Fibre Channel) between servers running Hyper-V and shared storage.

The live migration process for a virtual machine inside a cluster (when the virtual machine is stored on a CSV volume) and for a virtual machine outside of a cluster (when the virtual machine is stored on an SMB share) is practically identical.

When performing a live migration of a virtual machine between two computers with no shared infrastructure, the first thing that Hyper-V does is perform a partial migration of the virtual machines storage, as follows:

  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 over the network 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 live migration is initiated, following the same process that is used for live migration with shared storage.

  5. Once the live migration is complete and the virtual machine is successfully running on the destination server, the files on the source server are deleted.

See Also

(937) 890-5197
Technical Support (937) 890-5197
FREE
D-I-Y Support
CUSTOMER
REPAIR

Machine Models

Determine Which You Have?

Manuals (Free to Download)

Shopsmith Mark V/Mark 7 Information

Mark V/Mark 7 Service Information and Summary Manuals

Our New Products

Other Information Manuals

Videos

Shopsmith Mark V/Mark 7

Other Products

FREQUENTLY ASKED QUESTIONS
List View Search For Common Issues With Solutions

12 NOON - 3:00 PM
Only $19.99 for Your First 15 Minutes & $1.00 Per Minute After
(937) 890-5197
Call For an Appointment
Message. They will Call you Back.

HOW IT WORKS:

✓ WARRANTY✓ NO WARRANTY
If your equipment is under Warranty,
call our Customer Care Line at
(937) 890-5197 at no charge to you.
If your equipment is Not Under Warranty, or you acquired it from a source other than Shopsmith, contact a Shopsmith Tech Expert.

YOU ASKED FOR IT, WE ARE DELIVERING

With a long heritage of over 63 years and 600,000 plus machines in circulation, our Customers have asked for more access to Shopsmith Engineer Support to:

  • Provide recommendations for keeping your machine operating at optimum efficiency
  • Help guide you through a procedure
  • Assist with source materials such as diagrams, manuals, etc.
  • Guide you through part selection for a technical issue
  • Direct you to the wealth of 'Getting Started' Materials
  • Or even just to walk you through how to get started!

The Shopsmith Engineering Team is lead by our Shopsmith Engineer, a leading Quality Assurance Professional And 40+ Year Shopsmith Veteran. If his team can't help, it's likely nobody can.

While we wish we could bottle Shopsmith Experts, and have unlimited resources, they just aren't available. So, we have created a special Shopsmith Engineering Support Line especially dedicated for Equipment No Longer Under Warranty. (Our equipment is such high quality; it lasts and lasts!)

#WHATHOW
1Schedule an AppointmentBook Online
Call Customer Care at (937) 890-5197 to Schedule For You
2Pay by Credit CardProvide your Credit Card information to bill you for:
  • $19.99 for the first 15 Minutes of your call.
  • Any time over 15 minutes will be billed at $1.00 per minute
  • You will be quoted for estimated additional time if your call takes longer than 15 minutes.
  • No Money will be refunded for Less than 15 minutes
3Get The Most From Your Call! When Scheduling Online Yourself, will be able to:
  • Schedule your appointment & receive a confirmation
  • Provide information on what you need so the Tech Expert can prepare for your call
  • Include pictures or videos to assist your Tech Expert
Calling Engineering Technical Support Directly will allow you to have immediate response if they are available, and do not have a scheduled appointment, during 12:00pm & 3:00pm, M-F, Est.
Calling our General Customer Care Line will allow you to have a Representatives schedule your Shopsmith Engineering Support Appointment so you don’t have to. They will direct you through how to provide information to the Shopsmith Engineering Support Team.

We Look Forward to Speaking with You!

%nbsp;

Dedicated to Improving Lives Through Woodworking For More Than 65 Years!
GET YOUR FREE MARK 7 INFORMATION KIT
AND ONLINE DEMONSTRATION
THE NEW, 7-IN-1 TOOL MARK 7 - Much more than just a Table Saw or Lathe!
“I Love My Mark 7. It has saved me thousands of dollars by allowing me to completely rebuild a wooden fence myself.” Jim S.
MARK V's and new MARK 7's may look alike but they're NOT! The Mark 7 includes the New PowerPro headstock and the 7 most valuable woodworking tools to have in your shop. The Mark 7 will allow you to tackle all your projects with one machine. And, if You have the Mark V you can upgrade to MARK 7 Standard including the amazing new PowerPro® Headstock.
“My Dad owned a Shopsmith, I own a Shopsmith, and my son is building his own wooden canoe with our new Mark 7.” Tony B.
Shopsmith products sustain the test of time by providing the ability to upgrade older machines to modern standards. No other company offers that! And, if you want to increase your capabilities, Shopsmith has accessories for every woodworking operation. From Bandsaws to Biscuit Joiners you can customize your machine your way.
Live
“The PowerPro has been an excellent upgrade for my Shopsmith. So much power and speed! I recommend this upgrade.” Steve B.

V Live Blackpink

The new Powerpro provides greater precision by giving you infinitely variable speeds from 250 to 10,000 RPM with twice the torque at a constant rate through its full range at the press of few buttons. Shopsmith helps you tackle all your projects with improved results.
“Shopsmith Representatives are really knowledgeable and have great ideas on easy ways to get the results I want” DeShea C.

V Live Download

If you need training, Shopsmith provides support to tackle any job including the industry's most comprehensive Owner's Manual.
  • 325-page Woodworking Text
  • 10-Lesson Self-Study Woodworking Course
  • HUGE On-Line Catalog
  • Friendly , Knowledgeable Customer Support
  • 7 Tools in 1- Table Saw, Lathe, Disc Sander, Drill Press, Horizontal Boring, Router, Shaper.
  • Switch From Tool-To-Tool FAST- 12 to 98 Seconds!
  • Single Set Of Controls For ALL Tools- Makes Learning & Precision Set-Ups A Breeze
  • Do-It-Yourself - Now You're in Control which Eliminates Extra Hassle and Followup
  • Upgrade Your Home At Your Own Pace- Start Any Time, and Finish When you Want
  • Eliminate Contractor Costs- No Labor Costs to Bust Your Budget
  • Accomplishment - Enjoy The Thrill Of Doing-It-Yourself
  • YOU Control The Quality At Every Step- No Need To Settle For Less
  • Relax & Enjoy The Fruits Of Your Efforts- Don't forget to Share Your Ideas

Shopsmith Abrasives

Manufactured in the USA, our Shopsmith Abrasives are designed for comfort and ease of use. Combine that with our other Shopsmith products and you have a “must-have” tool!

More Great Ideas for Your Next Project

V Live Bts

© SHOPSMITH - DREAM IT! BUILD IT! SHARE IT! -- ® Shopsmith PowerPro is a registered trademark of RLFBRANDS LLC