Information replication system mounting partial database replications

Abstract

An information recovery system mounts partial database replications, such as selected tablespaces, on a target host.

1 . A method for managing data that may be replicated across one or more computer: systems, the method comprising the computer-executed steps of: 
 establishing one or more mirrored copies of data that are copies of one or more volumes of data that are part of a first volume group on a first computer system having a first operating system;    separating one or more mirrored copies of data from the respective one more volumes of data;    discovering logical information related to the one or more volumes of data that are part of the volume group on the first computer system and creating a map of the logical information to physical devices on the first computer system; and    mounting a portion of a duplicate of the one or more mirrored copies of data on a second computer system.    
     
     
         2 . The method of  claim 1 , wherein the volume group on the first computer system corresponds to an Oracle database.  
     
     
         3 . The method of  claim 2 , wherein mounting a portion of the duplicate includes mounting one or more tablespaces.  
     
     
         4 . The method of  claim 3 , further including enabling a user to select tablespaces for recovery.  
     
     
         5 . The method according to  claim 4 , further including generating a graphical display of tablespaces that can be selected for recovery.  
     
     
         6 . The method according to  claim 4 , further including renaming the second volume group and components.  
     
     
         7 . The method according to  claim 6 , further including dropping non-selected tablespaces so that the selected tablespaces are recovered.  
     
     
         8 . The method according to  claim 6 , further including executing recovery of the selected tablespaces and applying redo logs.  
     
     
         9 . The method according to  claim 1 , further including receiving a mode of operation selected by the user.  
     
     
         10 . The method according to  claim 9 , wherein the modes of operation include recovery, read-only recovery, and no recover.  
     
     
         11 . The method of  claim 1 , wherein the first and second operating system are substantially the same and are selected from a group consisting of IBM AIX, Sun Solaris, or HP UX.  
     
     
         12 . The method according to  claim 1 , wherein the volume group on the first computer system corresponds to a database application.  
     
     
         13 . The method of  claim 12 , wherein there is a set of information associated with the database, the set of information data including tablespaces, archive logs, redo logs, and control files.  
     
     
         14 . A method for recovering a portion of a database, comprising the computer-executed steps of: 
 replicating a first volume group on a first host to create a second volume group accessible to a second host;    enabling selection of a portion of the replicated second volume group for recovery;    mounting the selected portion of the second volume group; and recovering the mounted portion of the second volume group.    
     
     
         15 . The method according to  claim 14 , wherein the first volume group corresponds to a database application.  
     
     
         16 . The method according to  claim 15 , wherein the database application corresponds to an Oracle database.  
     
     
         17 . The method according to  claim 15 , wherein the selected portion of the second volume group corresponds to one or more tablespaces.  
     
     
         18 . A computer system comprising: a data storage system including a plurality of storage devices; 
 a first and second computer system in communication with the data storage system; and    computer-executable logic that enables the method steps of:    establishing one or more mirrored copies of data that are copies of one or more volumes of data that are part of a first volume group on a first computer system having a first operating system;    separating the one or more mirrored copies of data from the respective one more volumes of data;    discovering logical information related to the one or more volumes of data that are part of the volume group on the first computer system and creating a map of the logical information to physical devices on the first computer system; and    mounting a portion of a duplicate of the one or more mirrored copies of data on a second computer system having a second operating system using the map.    
     
     
         19 . A program product for use with a data storage system having a plurality of storage devices and which is in communication a first and second computer system, the program product being for management of data and being comprised of: 
 computer-executable logic contained on a computer-readable medium and which is configured for causing the following computer-executed steps to occur:    establishing one or more mirrored copies of data that are copies of one or more volumes of data that are part of a first volume group on a first computer system having a first operating system;    separating the one or more mirrored copies of data from the respective one more volumes of data; discovering logical information related to the one or more volumes of data that are part of the volume group on the first computer system and creating a map of the logical information to physical devices on the first computer system; and    mounting a portion of a duplicate of the one or more mirrored copies of data on a second computer system having a second operating system using the map to create a second volume group that is substantially identical to the first volume group.