The primary IT concern today is to ensure that the applications and information that drive critical business processes are available when they are needed, whenever they are needed. We present a description of the required architecture and operation for an automatic failover solution, demonstrating how a solution should be carefully engineered for ease of operation and management.
Business and IT Requirements for High Availability Continuous Application Availability with WANSyncHA November 2005
1601 Trapelo Road Waltham, MA 02451 1.866.WANSync www.xosoft.com
Contents Executive Summary ........................................................................................ 1 Business Continuity Today ............................................................................... 2 Requirements for an Effective Solution............................................................... 2 A High-Level Overview of the WANSyncHA System .............................................. 4 Normal Operation of the System ....................................................................... 5 Managing and Monitoring the System ................................................................ 7 Recovery - The Essence of High Availability........................................................ 8 Initialization................................................................................................... 9 Digging Down: What Makes WANSyncHA Distinctive ......................................... 10 Installation Without Pain................................................................................ 10 Fully Automated Failover - Auto-Triggered or at the Push of a Button .................. 10 Real Application-Aware Protection From Corrupted and Inconsistent Information ... 11 Seamless Integration With Your Environment ................................................... 11 Ease of Management with Complete Control ..................................................... 12 Cost-Effectiveness and Verifiability.................................................................. 14 Some Examples of Use .................................................................................. 14 Disk Backup System...................................................................................... 14 Many-To-One Disk Backup System.................................................................. 14 Migration..................................................................................................... 15 Simultaneous Local/Remote Backup ................................................................ 15 Full Trees .................................................................................................... 16 Summary of WANSyncHA Advantages.............................................................. 17 Conclusion................................................................................................... 19 Other XOsoft Products................................................................................... 19 Contact Information...................................................................................... 19
Executive Summary The needs of business today extend far beyond the data protection provided by traditional backup and restore - they require full 24/7/365 protection for true business continuity. Effective protection requires several layers, including mainstream technologies like RAID, tape backup, and snapshots along with online replication. But when disaster strikes, what is needed is true high availability, with recovery in seconds, and without the need for cumbersome and error-prone manual procedures. An adequate high availability solution must meet several key requirements, including simplicity, cost-effectiveness, application-awareness, flexibility and high performance. We present a detailed description of the WANSyncHA architecture and operation, demonstrating that it has been carefully engineered not just to meet the minimum requirements, but in several cases to set new standards for ease of operation and management. In addition, WANSyncHA offers several unique capabilities, including installation without downtime, automatic detection of application failure, and failover across different networks.
Business Continuity Today What is the proper concern of the IT department of a modern enterprise - protecting data or making sure that critical business processes that depend on IT applications and resources remain accessible and effective? The answer to that is obvious - the primary IT concern in the enterprise today is to ensure that the applications and informatio... [download for more]
