ONS GLOBAL DISASTER RECOVERY SOLUTION

DR Solutions
XO soft | Cervalis

Company Overview

Founded in 1999, XOsoft is a leading provider of continuous application availability solutions that fully address business continuity, disaster recovery and continuous data protection needs. XOsoft products ensure uninterrupted access to all types of file and application servers, including Microsoft Exchange, Microsoft SQL and Oracle Database, and allow instantaneous recovery from any type of disaster.

XOsoft's WANSync provides unrivaled disaster recovery through real time replication, while the state-of-the-art WANSyncHA ensures the highest availability through automatic failover. Both business continuity solutions allow enterprises to seamlessly continue working through planned as well as unplanned downtime. The company's Enterprise Rewinder continuous data protection (CDP) solution offers added protection and allows system administrators to effectively "undo" application and database corruptions by quickly and easily rewinding databases to their latest consistent state.

WANSyncHA - High Availability Solution Suite

WANSyncHA is a high availability solution with application-aware automatic failover over LAN or WAN. WANSyncHA maintains identical replicas of complete database and application servers through continuous real-time replication. Should a server fail or have to be shut down for maintenance, a synchronized replica, whether in the same office or halfway around the globe, will instantaneously and automatically take its place to ensure continuous application availability.

WANSyncHA high availability solution advantage

Fast and simple high availability solution installation
Transparent Operation
Cost-Effectiveness

WANSyncHA, a High Availability Solution with Automatic Failover

XOsoft, a leading provider of business continuity and high availability and disaster recovery solutions for disaster recovery, takes high availability to the next stage. Based on its acclaimed WAN-based WANSync business continuity platform, WANSyncHA boosts availability even further with application-aware, automatic failover, even across multiple IP networks.

WANSyncHA builds on the WANSync platform's ability to maintain fully functional replicas of complete database and application servers. These synchronized servers may be local to the organization, but may also be maintained remotely, with real-time replication carried out over the WAN. Should a server fall prey to unexpected failure or be brought down for maintenance, a synchronized replica, regardless of where it is located in the world, will automatically and instantaneously be brought on-line to maintain high availability, with no need for any manual intervention.

WANSyncHA Server provides seamless global availability for application servers of any type. In addition, a set of dedicated, application-specific WANSyncHA solutions provide industry-standard application servers with tailored, automatic failover-backed global availability. These solutions include the WANSyncHA Exchange , WANSyncHA SQL and WANSyncHA Oracle high availability solution for Microsoft Exchange, Microsoft SQL and Oracle, respectively.

WANSyncHA High Availability Solution Lets You Just Keep Working

Single-Network Automatic Failover

In a single segment scenario, a WANSyncHA master (M1 in the diagram below) is assigned a secondary IP address. This IP address is used for replication with a replica server (R1 in the diagram below). In case M1 fails, it will retain the secondary IP address, while its primary IP address is reassigned to R1, along with M1's host name. Complete service availability is achieved, as users are automatically and immediately switched to server R1. The only configuration required is to disable server M1 from automatically updating DNS tables, which is usually done by default.

Cross-Network Automatic Failover

When master and replica do not reside on the same IP network, IP address transfer is impossible. WANSyncHA overcomes this limitation through intelligent manipulation of DNS lookup. Should the master server fail, WANSyncHA will route client applications to a replica server with an alternate DNS name, again providing users with continuous application availability through automatic failover. The only configuration this scenario requires is that client stations be set up to work with servers by name, rather than IP address. If Active Directory Integrated DNS is in use, preventing WANSyncHA from updating DNS tables, the master server itself will be registered as a "user" on the network, with proper ACL (Access Control Lists), and failover to the replica will be performed using standard password protected security procedures.

XOsoft Business Continuity, Disaster Recovery Software and Continuous Data Protection Solutions

WANSyncHA Exchange - Exchange High Availability / Disaster Recovery Solution
WANSyncHA SQL - High Availability Solution for SQL Server Replication
WANSyncHA Oracle - an Oracle Disaster Recovery High Availability Solution
WANSyncHA Server High Availability Automatic Failover for Disaster Recovery Planning (DRP)

WANSyncHA Exchange - Exchange High Availability / Disaster Recovery Solution

With the amount of business being conducted via email, organizations cannot afford for access to email applications, like Microsoft Exchange, to be interrupted. Should an Exchange server be unavailable, either through planned or unplanned downtime, an organization will most likely face severe losses in productivity and profitability. For information-reliant 24/7 operations, merely being able to restore service by resurrecting downed servers is not enough, and continuous application availability is a must.

A mission-critical platform for MS Exchange replication to multiple high availability replicas over LAN or WAN is the only way this goal can be achieved.

Exchange High Availability with Automatic Failover

XOsoft, a leading provider of continuous application availability software, provides a solution tailored to handle the specific nuances of MS Exchange replication, high availability and disaster recovery. XOsoft has developed WANSyncHA Exchange for Exchange Disaster Recovery, which boosts the availability of Microsoft Exchange through high availability replicas that enable automatic failover, even across different IP networks. XOsoft's Exchange Failover suite provides the protection mandated by corporations today.

WANSyncHA Exchange for disaster recovery secures entire Exchange servers, backs them up and constantly synchronizes them with either local or remote replicas in real time - MS Exchange replication. Our patented soft installation avoids system shutdowns and does not require that Exchange services be restarted, ensuring that lost productivity is not an issue. Intelligent, binary differentiation-based algorithms allow WANSyncHA Exchange to continuously carry out byte-level updates, even over intermittent WAN and slow TCP connections. Should the Exchange server fail for any reason or have to be shut down for maintenance, a WANSyncHA Exchange high availability replica, either in the office, branch office or halfway around the globe, will instantaneously and automatically take its place to provide true business continuity and continuous application availability.

Key Benefits and Features of MS Exchange Replication and High Availability

Unlimited Availability

Fully automated or manually activated, single-click Exchange server failover

Continuous data protection through our Data Rewind technology for instant roll-back to previously stored consistent states

Exchange Automatic Failover - Fast and Simple Installation

Soft installation requires no system shutdown or restart of Exchange services

Effortless replication setup through single-click, automatic mapping of all Exchange server components

Easy to use, GUI-based, centralized management from any remote site

Flexible replication scheduling - synchronization may occur in real time, or may optionally be delayed to protect replicas from Exchange server data corruption

Transparent Operation

Continuous, real-time, asynchronous replication of Exchange resources over LAN or WAN

Minimal IT support required

MS Exchange replication through tree topology with incremental, binary differentiation-based updates and optional data compression minimize bandwidth requirements

Highly resilient network protocol protects against connection losses and optimizes low speed links

Cost Effective Exchange High Availability and Exchange Disaster Recovery Solution

Software-based, hardware and platform-independent - does not require Windows 2003 Enterprise Edition, Windows 2000 Advanced Server, Exchange Server Enterprise Edition or 3 rd party clustering solutions

No hidden costs - the lowest TCO (Total Cost of Ownership) and a rapid return on investment

Highly scalable architecture

WANSyncHA Exchange - High Availability at Work

With automated Exchange server component discovery and MS Exchange replication setup, installation and configuration is easy. The WANSyncHA Exchange service running on the master Exchange server maps and retrieves all Exchange database components, including storage groups and associated public and private information stores, system directory and log files.

Once paths to Exchange database components have been retrieved, synchronization with WANSyncHA Exchange replicas commences, creating up-to-date copies of the Exchange server being secured. WANSyncHA Exchange tracks all incoming changes to master Exchange server files (at the file system level), and replicates these changes in real time. Transactional integrity is maintained constantly, as updates are applied to replicas in the exact same order in which they were written to the master Exchange server.

Exchange High Availability Server Failover / Failback

Should the master Exchange server become unavailable, service will automatically fail over to the MS Exchange replication site. WANSyncHA Exchange monitors all critical events, including global server failure and Exchange service failure, and either automatically or on command, initiates failover to a standby replica site. Failover may include IP take-over (if the standby site is implemented within the same network segment) or DNS redirection, when the remote standby site is located on a different IP network (cross-network failover).

Exchange High Availability Single-Network Failover / Failback

In a single segment scenario, a WANSyncHA Exchange master (M1 in the diagram below) is assigned a secondary IP address. This IP address is used for replication with a replica server (R1 in the diagram below). In case M1 fails, it will retain the secondary IP address, while its primary IP address is reassigned to R1. This procedure is fully automated, and involves the following events on the replica:

IP take-over

Startup of Exchange services

Mounting of Exchange databases

Updating of user records in Domain Controller with new Exchange server name

Complete service availability is achieved, as users are instantaneously and automatically switched to the replica server (R1). Once the master server is back online, reverse replication (from replica to master) is automatically initiated, ensuring that the master is fully up-to-date when users are switched back to it.

Exchange High Availability Cross-Network Failover / Failback

When master and replica do not reside on the same IP network, IP address transfer is impossible. WANSyncHA Exchange overcomes this limitation through intelligent manipulation of DNS lookup. Should the master server fail, WANSyncHA Exchange will route client applications to a replica server with an alternate DNS name, again providing users with complete and seamless Microsoft Exchange service availability.

WANSyncHA Server - High Availability Automatic Failover solution for Disaster Recovery Planning (DRP)

XOsoft solutions enable enterprises to keep working 24/7 with all their mission-critical application. This helps safeguard the interests of key stakeholders, reputation, brand and value creating activities. Our high availability solution for file servers helps to significantly lower the risk for decreased productivity and lost revenue by minimizing downtime associated with planned and unplanned IT outages.

WANSync Server - A Continuous High Availability Solution with Automatic Failover

XOsoft providers disaster recovery planning (DRP) software and high availability solutions for application and file servers. Based on its acclaimed WAN-based WANSync business continuity platform, XOsoft has developed WANSyncHA Server, which boosts application server uptime through high availability replicas that enable automatic server failover, even across different IP networks.

WANSyncHA Server ensures seamless availability by synchronizing entire application servers and constantly replicating them to either local or remote replicas in real time. Intelligent, binary differentiation-based algorithms allow WANSyncHA Server to continuously carry out byte-level updates, even over intermittent WAN and slow TCP connections. Should an application server fail for any reason or have to be shut down for maintenance, a WANSyncHA Server high availability replica, either in the office or halfway around the globe, will instantaneously and automatically take its place to provide true business continuity and continuous application availability.

Key Benefits and Features of our Disaster Recovery (DRP) High Availability Solution

Unlimited High Availability Solution

Fully automated or manually activated, single-click application server failover
File recovery from any server replica
Continuous data protection Data Rewind technology for instant roll-back to previously stored consistent states

Fast and Simple Installation to Gain High Availability

Soft installation requires no system shutdown or server reboot
Effortless replication setup with support for one-to-many, many-to-one and many-to-many replication topologies
Easy to use, GUI-based, centralized management from any remote site
Flexible replication scheduling - synchronization may occur in real time, or may optionally be delayed to protect replicas from master application server data corruption

Transparent Operation through an Automatic Server Failover and High Availability Solution

Continuous, non-intrusive replication of any type application server over LAN or WAN, along with open files and registry settings, even as they are being accessed
Minimal IT support required
Replication tree topology with incremental, binary differentiation-based updates and optional data compression minimize bandwidth requirements
Highly resilient network protocol protects against connection losses and optimizes low speed links

Cost Effective High Availability Solution with Automatic Server Failover

Software-based, hardware and platform-independent - does not require Windows 2003 Enterprise Edition, Windows 2000 Advanced Server or 3 rd party clustering solutions
No hidden costs - the lowest TCO (Total Cost of Ownership) and a fast return on investment
Highly scalable architecture
Reciprocal branch office support

WANSyncHA Server at Work Meeting Disaster Recovery Planning (DRP) Requirements

Once synchronization with high availability replicas has taken place, WANSyncHA Server tracks all incoming changes to master application servers (at the file system level), and continuously replicates these changes to replicas in real time. Should a master application server become unavailable, WANSyncHA Server's automatic server failover will ensure that a local or remote replica will immediately take its place and allow your employees to just keep working .

Automatic Application Server Failover

Should the master application server become unavailable, service will automatically fail over to a remote site. WANSyncHA Server monitors master server failures and either automatically or on command, initiates failover to a standby replica site. Failover may include IP take-over (if the standby site is implemented within the same network segment) or DNS redirection, when the remote standby site is located on a different IP network (cross-network failover).

Single-Network Failover / Failback

In a single segment scenario, a WANSyncHA Server master (M1 in the diagram below) is assigned a secondary IP address. This IP address is used for replication with a replica server (R1 in the diagram below). In case M1 fails, it will retain the secondary IP address, while its primary IP address is reassigned to R1, along with M1's host name. Complete service availability is achieved, as users are instantaneously and automatically switched to server R1. Once the master server is back online, reverse replication (from replica to master) is automatically initiated, ensuring that the master is fully up-to-date when users are switched back to it.