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remains the quintessential backup technology. Disk-based technologies (such as disk-to-disk and disk-to-disk-to-tape systems, virtual tape libraries and continuous data protection) and WAN-based tools are also serving a growing range of business needs. "End users have encountered requirements for their data center (or company) that cannot be met using any of the traditional backup products," says W. Curtis Preston, vice president of data protection at GlassHouse Technologies Inc. With storage capacities now routinely reaching hundreds of terabytes, backups must offer superior performance with shorter recovery specifications (RPO and RTO), and serve the escalating business need for compliance and risk mitigation. Backup products must also be more intelligent, automated and easier to use, reducing the IT time invested in backup operations. With so much riding on enterprise backups, it's important to choose the best product and ensure that any new product will easily integrate into your environment. This article offers some tips to help you make the right purchasing decisions, covers the most important guidelines for a successful implementation and shows you the most popular backup software product (as voted by actual storage users).Go to the next part of this article: Backup software: Preparing for the purchase
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