Abstract:

Data disaster recovery is to establish and maintain an off-site backup data center to protect data against catastrophic events by making use of geographic discreteness.In case of data loss,hardware failure or misuse,the backup data center is immediately connected,so that the application services will not be affected.When earthquakes and other natural disasters occur,the backup data center ensures that historical data is not lost,providing secure and reliable backup protection,and has the ability to quickly recover the data and applications after disaster to ensure business to continue.

Key words: data disaster;recovery data center;data storage technology;network RAID