Double-Take Software Overview

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Double-Take Software Overview A Platform for
Recoverability
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Agenda

• Introduction to Double-Take Software
• Double-Take Software Products and Technology
• Client testomonial
• Q A

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About Double-Take Software, Inc.
Leading Provider of Software Solutions for
Recoverability Including Continuous Data
Replication, Application Availability and System
State Protection.

• Headquartered in Southborough, MA
• Worldwide Reach - North America, South America,
  Europe, Pacific Rim
• Focused on the protection of business-critical
  applications
• 125,000 licenses of Double-Take in over 10,000
  customers
• 35,000 licenses protecting Exchange
• 35,000 licenses to protecting SQL
• Comprehensive Professional Services Offerings
• Prestigious Microsoft Certifications

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Your Solution Needs

• What challenges are you facing in your DR plan?
• What types of servers do you want to protect?
• About how much data do you have to protect?
• Have you chosen a DR Site?
• What kind of connection will you have?
• Do you have an RTO and RPO defined?

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The Keys to Recoverability
Replication Host-based, real-time, byte-level,
asynchronous replication across any distance with
WAN optimization to minimize bandwidth usage and
requirements
Failover Real-time monitoring for automatic or
manual failover for individual applications, file
shares, and whole servers - locally or remotely
Recovery Recover data or entire servers over any
distance while users remain online, with minimum
downtime
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Data Protection

• System Friendly Asynchronous Replication
• Low CPU Overhead
• Defined Memory and Disk Usage
• Write Order Intact Replication
• Bandwidth Friendly Data Movement
• User-definable Replication Sets
• Compression, Scheduling, Scheduled Bandwidth
  Throttling capabilities
• Point-in-Time Recovery
• Integration w/Volume Shadow Copy Services

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Double-Take Technology Overview
Source
Target
Applications
Applications
OS
OS
Double
-
Take Filter
Disk
Disk
Systems
Systems
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Double-Take Technology Overview
Source
I/O Operations examined in Kernel Memory
Applications
Protected File? Write or Change?
OS
Yes
No
Disk
Systems
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Double-Take Technology Overview
Always Same I/O order Same Data Same
File Option Different Directory
Target
Applications
OS
Disk
Systems
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Double-Take Queuing and Error Correction
Send Queue
Rcv Queue
Ack Queue
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Failover Solutions

• Application-Level Failover (RTO 30min)
• Applications like Exchange, SQL and File Servers
  using the Application Manager capabilities
• Works with Cluster-based Deployments
• Full-Server Failover (RTO 30min)
• Custom-developed applications or applications
  dependent on system state information
• Replicate and Failover OS, Applications and Data
• Works for all stand-alone Windows Servers
• Assists in One-to-One Server Migrations

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How Application Failover Works
Source
Target
Replication
Failover Monitoring

• Application Services Started
• Failover Name, IP and/or DNS Records
• Failover Active Directory Hostname

• IP ICMP or Heartbeat Monitoring
• Detect Failure in Seconds or Minutes

• Users can reconnect within minutes of failure
• Failover can occur across a LAN, WAN and even
  NAT
• Failover more than one Server Identity to the
  Same Target Server
• Failover Scripting for Custom Configurations

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How Application Failback Works
Source
Target
Restoration
Replication
Failover Monitoring

• Failback Source Identity
• Bring Source Application Online
• Users Reconnect Within Minutes

• Recover or Replace Source Server
• Restore Data to the Source Server

• Start Replication and Resume Failover Monitoring
  for Continued Protection

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How Full-Server Failover Works
Staging Area
OS and Applications
Data Volumes User and Application Data
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Server Recovery Option

• Tier 2/Tier 3 Server Recovery (RTO 4-24 hours)
• Same Recovery Type as FFO
• Local, Remote or Both
• Restore to Physical or Virtual Systems
• Assists with Swing-Server Migrations

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Double-Take Server Recovery Option
Protect Multiple Production Servers With One SRO
Image Server
Recover Back to the Original Server, to New
Hardware, or to a Virtual Machine
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Double-Take Virtual Recovery Assistant

• Protect physical or virtual servers directly into
  VMWare .VMDK files with real-time replication
• Protect the entire server including the OS,
  applications and data
• Protect multiple source servers with a single
  virtual target server
• Failover automatically or manually within minutes
• Lower TCO with virtualization and many-to-one
  consolidation.

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Virtual Recovery Assistant
DT-VRA
C
DT-VRA
FS-System
C
System.vmdk
C
System.vmdk
E
FS-Data
FS-System.vmdk
File Server
C
EX-System.vmdk
FS-System.vmdk
E
FS-Data.vmdk
EX-Data.vmdk
FS-Data.vmdk
C
EX-System
File Server
EX-System.vmdk
DB-System.vmdk
E
EX-Data
EX-Data.vmdk
DB-Data.vmdk
Exchange
DB-System.vmdk
C
DB-System
DB-Data.vmdk
E
DB-Data
Database
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How DTVI Works

• Must be running ESX Server 3.0.0 and VMware
  VirtualCenter 2.0.0
• Leverages VMware APIs for virtual machine
  snapshot functionality
• Snapshots include the entire VM (OS, Apps, Data)
  and can be used with a non-Windows Guest OS
• Snapshots are time-coherent across all virtual
  disks configured for a protected virtual machine
• Extends staging of virtual machines across
  geographical boundaries (WAN replication)

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How DTVI Works
Administrative Client
Replica VM Files
Source VM Files
Committing (remove_snapshot)
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Greg Saraydarian Financial Services Organization
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Customer Solution

• Solution set for data protection and availability
  
• Used
• Double-Take Replication
• Double-Take Application Manager
• Protecting/has protected several versions of
  Exchange Server

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QA
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Thanks!
For More Information http//www.double-take.com Yo
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