Leaders Have Vision™ visionsolutions.com 1

Leading Edge Solutions,Proven Technologies

Anne-Elisabeth CaillotPre-Sales & Business Development

Anneelisabeth.caillot@visionsolution.com+33(0)1 47 77 15 11+33(0)6 70 93 71 15

Leaders Have Vision™ visionsolutions.com 2

Core Protection Products

Leaders Have Vision™ visionsolutions.com 3

Leaders Have Vision™ visionsolutions.com 4

Hardware-Independent failover

Full-Server or Data-Only protection

Windows and Linux

Reporting and Alerting

Leaders Have Vision™ visionsolutions.com 5

SiteHypervisorServer

What do I want to protect?

ServiceData

Leaders Have Vision™ visionsolutions.com 6

Basic Double-Take Configuration

Leaders Have Vision™ visionsolutions.com 7

7 www.doubletake.com

How Double-Take Replication Works

– Host level filter driver replication– Simplified management

• Auto discovery, guest level policies, & guest protection schema• One click failover and failover management

– Unlimited number of VMs

Leaders Have Vision™ visionsolutions.com 8

How Double-Take Replication Works

OperatingSystem

HardwareLayer

File System

Any IP Network

Applications

OperatingSystem

Double-Take Filter

HardwareLayer

File System

Applications

Advantages : • Real Time Asynchronous

Replication,• Bandwidth optimization,• Intelligent compression,• Byte level replication,

• VSS snapshot integration• Data consistency with sequential

data transmission,

S.T.A.R : Sequential Transfer Asynchronous Replication

Double-Take Filter

Leaders Have Vision™ visionsolutions.com 9

Hyper-V’s File-Based Data

• *.VHD – Files that hold all the data for a particular volume associated with a virtual machine.

• *.AVHD - When you take a snapshot of a virtual machine, its .VHD files are “frozen” and subsequent disk writes within the VM are instead stored in a .AVHD file.

• *.XML - Hyper-V stores a virtual machine’s configuration information in an industry-standard XML file.

• *.BIN and *.VSV - When you pause or take a snapshot of a running virtual machine, Hyper-V stores the contents of the virtual machine’s RAM in a .BIN file and information about the current state of the running virtual machine in a .VSV file.

Leaders Have Vision™ visionsolutions.com 10

Mirroring (1/2)

Full MirrorCopies all of the directories and files in the replication set to the target machine. If a mirror has already been completed, another full mirror will overwrite the data on the target.

Difference MirrorCompares all files in the replication set on the source and their current state on the target

machine. The comparison is based on the date, time, and size of the file (DTS-Check). Changes can be transmitted on file or block level.

NEW: Use of the NTFS Change JournalThe difference mirror after a reboot of the source server only checks the changed files since Double-Take services stoped. This dramatically shortens the mirror times after a (planned) reboot!

Leaders Have Vision™ visionsolutions.com 11

Queueing

Memory• 32-1024 MB (128 MB default)

HDD• Size depents on infrastructure (LAN/WAN, data

volume, etc)

Leaders Have Vision™ visionsolutions.com 12

Double Take Monitoring

• IP ICMP or Heartbeat Monitoring on Host

• Detect Failure in Seconds or Minutes

• Failover Server Name and IP address• Failover DNS Records

Lan/Wan

Source Target

•Failover Alert integrated in SCVMM through ProTip integration

Leaders Have Vision™ visionsolutions.com 13

Double-Take : Failover & Failback

IP-Failover DNS-Failover

Advantages :• Faster Failover• No DNS rights necessary

Disadvantages : • Not possible between different subnets

Advantages :• Online Restore / low Downtime• No subnet limits

Disadvantages :• DNS Rights required

Leaders Have Vision™ visionsolutions.com 14

Host-Level Protection for Hyper-V

Hyper-VHost

VHD

VHD

VHD

VHD

VHD

VHD

Hyper-VHost

Leaders Have Vision™ visionsolutions.com 15

Hyper-VHost

VHD

VHD

VHD

VHD

VHD

VHD

Hyper-VHost

VHDPhysical ServerHyper-V VRA

Double-Take for Hyper-V

Leaders Have Vision™ visionsolutions.com 16

FS-System.vhd

FS-Data.vhd

EX-System.vhd

EX-Data.vhd

DB-System.vhd

DB-Data.vhd

C: System.vhd

DT-VRAFS-System

FS-Data

File Server

Exchange

Database

C:

E:

EX-System.vhd

EX-Data.vhd

DB-System.vhd

DB-Data.vhd

C: System.vhd

DT-VRA

FS-System.vhd

FS-Data.vhdFile Server

C:

E:EX-System

EX-Data

C:

E:

DB-System

DB-Data

C:

E:

Virtual Recovery Assistant

Leaders Have Vision™ visionsolutions.com 17

Automatically provisioned VM

• No need to install VMs on the target• Offline VMs on target• No OS/Application licensing on the target

Hyper-V Environment

Leaders Have Vision™ visionsolutions.com 18

Double-Take and Hyper-V Cluster

Leaders Have Vision™ visionsolutions.com 19

Hyper-V (non-CSV) Cluster & DT Availability

Cluster-to-Cluster

Cluster-to-Stand-alone

Leaders Have Vision™ visionsolutions.com 20

DT Availability for Hyper-V Cluster (non-CSV)

Live Migration over Geographical Distances: Replicate and failover Hyper-V virtual machines in real time over geographic distances quickly and easily

&

Leaders Have Vision™ visionsolutions.com 21

GeoCluster Feature

• Extend MSCS clusters across any distance• Real-time, byte-level replication• Eliminate single point of disk failure• Support up to 8 node clusters

Replication

Traditional Cluster

Leaders Have Vision™ visionsolutions.com 22

How GeoCluster Works

ReplicationReplication

GeoCluster nodes use separate disks, kept synchronized by real-time replication

Only the active node accesses its disks

At failover, the new active node resumes

with current, replicated data

Data is replicated to all passive nodes

Leaders Have Vision™ visionsolutions.com 23

Double-Take provides continuous replication• Disaster recovery• Low network and server impact• Works over WAN

MSCS provides application “failover”• Key apps are HA aware using Cluster API• Standard API for 3rd party development • Application Level Monitoring and Failover

Best of two worlds…

Hyper-V and Geocluster

23

Double Take and Microsoft clusters

Leaders Have Vision™ visionsolutions.com 24

DT Availability for Hyper-V Cluster

And what works with CSV technology ??Double-Take Availability can protect Hyper-V with Cluster Shared Volume !!

Disk

VHD VHD VHD

SAN

Leaders Have Vision™ visionsolutions.com 25

DT Availability to protect CSV cluster

Failover Monitoring

Replication

With CSV cluster technology, DT Availability is installed within each VMs and enables :- real-time replication for the full VM- manual or automatic failover

Leaders Have Vision™ visionsolutions.com 26

Demonstration:Please wait for the demoenvironment to fully load.

Leaders Have Vision™ visionsolutions.com 27

Thank you!