In today's security-conscious IT environment, storage consolidation provides many advantages including enabling remote data replication of data for disaster tolerance.
For the most critical applications, the technology of choice for implementing real-time disaster recovery is asynchronous with data mirroring, where data is sent over an IP link to a storage system at a remote site shortly after it is written to the storage system at the primary site. This protects data against all physical threats to its primary home -- and, if a remote snapshot facility is combined with the remote mirroring facility, it also protects against disasters caused by viruses, malicious system intrusion and operational mishaps at the primary site.