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US 7,096,250 B2Granted
Information replication system having enhanced error detection and recovery
AssigneeEMC Corporation
InventorsMadhav Mutalik, Ajay Shekhar, Neil Schutzman, Thomas Dings, Ananthan K. Pillai, John E. Stockenberg, Michael H. Wright
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Abstract
An information recovery system includes mountable data volume replications that can be examined for enhanced error detection and correction.
Claims33
A method for detecting errors in a data volume, comprising:
- storing an original data volume;
- replicating the original data volume;
- examining the replicated data volume for latent errors;
- correcting an error in the original data volume based upon information obtained from examining a corresponding error in the replicated data volume.
1 more element
A method for recovering data, comprising:
- replicating a production database on a first set of disks mounted by a first host to a second set of disks to create a replicated database;
- enabling mounting of the second set of disks to a second host;
- enabling examination of the production and/or replicated database for latent errors with a data scrubbing tool;
- and
- correcting an error in the production database based upon information obtained from examining a corresponding error in the replicated database.
2 more elements
An information and recovery system, comprising:
- a storage area network;
- a server coupled to the storage area network for receiving a request from a first host to replicate an original data volume group that can be mounted by a second host and examined for latent errors to enable correction of an error in the original data volume group by examining a corresponding error in the relicated data volume group.
Dependencies are inferred from the claim text.