System and method for uniform disaster recovery system access

Abstract

A method, with a corresponding system and computer program product, for directing access to a server data processing system The method includes storing a first uniform resource locator and a associated with a first network address, where the first network address corresponds to a primary server data processing system and storing a second uniform resource locator and associated with a second network address, where the second network address corresponds to a disaster recovery server data processing system. The method also includes returning the first network address in response to calls for the first uniform resource locator when the primary server data processing system is operating normally and returning the second network address in response to calls for the first uniform resource locator when the primary server data processing system is unavailable (i.e., in the event of a “disaster”).

1 . A method for directing access to a server data processing system, comprising: 
 storing a first uniform resource locator associated with a first network address, where the first network address corresponds to a server data processing system;    storing a second uniform resource locator associated with a second network address, where the second network address corresponds to a disaster recovery server data processing system;    returning the first network address in response to calls for the first uniform resource locator when the server data processing system is operating normally; and    returning the second network address in response to calls for the first uniform resource locator when the server data processing system is unavailable.    
     
     
         2 . The method of  claim 1 , wherein the disaster recovery server data processing system is capable of performing at least one data processing service in place of the server data processing system.  
     
     
         3 . The method of  claim 1 , wherein the second uniform resource locator is a subdomain of the first uniform resource locator.  
     
     
         4 . The method of  claim 1 , further comprising returning the second network address in response to calls for the second uniform resource locator.  
     
     
         5 . The method of  claim 1 , further comprising storing the second network address associated with the first uniform resource locator when the server data processing system is unavailable.  
     
     
         6 . The method of  claim 1 , wherein the server data processing system includes multiple data processing systems.  
     
     
         7 . The method of  claim 1 , wherein the disaster recovery server data processing system is accessible by the second uniform resource locator whether or not the server data processing system is operating normally.  
     
     
         8 . A domain name server data processing system including at least a processor and storage, comprising: 
 a first uniform resource locator associated with a first network address stored in the storage, where the first network address corresponds to a server data processing system; and    a second uniform resource locator associated with a second network address stored in the storage, where the second network address corresponds to a disaster recovery server data processing system;    wherein the domain name server data processing system is configured to return the first network address in response to calls for the first uniform resource locator when the server data processing system is operating normally, and to return the second network address in response to calls for the first uniform resource locator when the server data processing system is unavailable.    
     
     
         9 . The domain name server data processing system of  claim 8 , wherein the disaster recovery server data processing system is capable of performing at least one data processing service in place of the server data processing system.  
     
     
         10 . The domain name server data processing system of  claim 8 , wherein the second uniform resource locator is a subdomain of the first uniform resource locator.  
     
     
         11 . The domain name server data processing system of  claim 8 , further comprising returning the second network address in response to calls for the second uniform resource locator.  
     
     
         12 . The domain name server data processing system of  claim 8 , wherein the second network address is associated with the first uniform resource locator when the server data processing system is unavailable.  
     
     
         13 . The domain name server data processing system of  claim 8 , wherein the second network address is also associated with the first uniform resource locator.  
     
     
         14 . The domain name server data processing system of  claim 8 , wherein the disaster recovery server data processing system is accessible by the second uniform resource locator whether or not the server data processing system is operating normally.  
     
     
         15 . A computer program product tangibly embodied in a machine-usable medium, comprising: 
 instructions for storing a first uniform resource locator associated with a first network address, where the first network address corresponds to a server data processing system;    instructions for storing a second uniform resource locator associated with a second network address, where the second network address corresponds to a disaster recovery server data processing system;    instructions for returning the first network address in response to calls for the first uniform resource locator when the server data processing system is operating normally; and    instructions for returning the second network address in response to calls for the first uniform resource locator when the server data processing system is unavailable.    
     
     
         16 . The computer program product of  claim 15 , wherein the disaster recovery server data processing system is capable of performing at least one data processing service in place of the server data processing system.  
     
     
         17 . The computer program product of  claim 15 , wherein the second uniform resource locator is a subdomain of the first uniform resource locator.  
     
     
         18 . The computer program product of  claim 15 , further comprising instructions for returning the second network address in response to calls for the second uniform resource locator.  
     
     
         19 . The computer program product of  claim 15 , further comprising instructions for storing the second network address associated with the first uniform resource locator when the server data processing system is unavailable.  
     
     
         20 . The computer program product of  claim 15 , wherein the server data processing system includes multiple data processing systems.  
     
     
         21 . The computer program product of  claim 15 , wherein the disaster recovery server data processing system is accessible by the second uniform resource locator whether or not the server data processing system is operating normally.