White Paper

The Ultimate Buyer’s Guide to HA/DR Solutions

Understand your options for high availability and disaster recovery (HA/DR) solutions

Due to globalization, Web-based sales and service, more vigorous competition, and more stringent regulations, the goal of ensuring the availability and recoverability of data and applications has risen considerably on the priority lists of today’s CIOs. A wide range of technologies is available to address this goal. At the apex of a spectrum of solutions sits a strategy that maintains highly redundant, geographically dispersed systems and data, commonly identified as High Availability (HA) or Disaster Recovery (DR). Occupying the lower extreme is traditional tape-based backups, which provide reliable but rudimentary disaster recovery capabilities. But between the two sit a variety of technologies offering various levels of system availability and recovery speed and completeness.

Depicting this continuum along a single line from low-end disaster recovery to high-end high availability would be misleading. HA and DR are not mutually exclusive. Both may be required to provide complete protection. For example, a tape-based DR solution cannot be used as a means to keep systems available during brief outages, such as those required by normal maintenance. At the same time, an HA solution may be of no help in recovering from a wide-area disaster such as an earthquake, because both the production and HA backup system may be destroyed, even if they are placed in separate buildings in the same city.

The demands for high availability are more stringent and the competition to put the most advanced technology on the market is more vigorous than ever. How can you be sure you’re choosing the best solution for your company?

This white paper acts as the ultimate buyers guide to HA/DR solutions.

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