Disaster recovery has been necessary, but it is too complex and expensive

Disaster recovery beyond backup was not affordable for most organizations when Fibre Channel SANs were the only option.

Complex configurations including channel extension equipment, add-on software, and staff training are prohibitively expensive.

Recent compliance regulations (e.g., HIPAA, Sarbanes-Oxley, and SEC rules) have pressured organizations of all sizes to make more data quickly recoverable for longer periods; company files, databases, and e-mail must be restorable for years.