Patent ID: 9646038
Date: 2017-05-09
CPC Classifications: G06F

Claim:
1. A method of creating a distributed index of a secondary copy of primary data, the method comprising: copying primary data stored in one or more primary storage devices to one or more secondary storage devices to create a secondary copy of the primary data; indexing a first portion of the secondary copy with a first index server, wherein indexing the first portion of the secondary copy creates a first index of the first portion; indexing a second portion of the secondary copy with a second index server, wherein indexing the second portion of secondary copy creates a second index of the second portion; copying the first index to the second index server so that the first index is available at both the first and second index servers; receiving a request for the primary data; determining that the secondary copy of the requested primary data exists in the one or more secondary storage devices; and sending the request to at least one of the first and second index servers to retrieve a portion of the secondary copy that relates to the requested primary data; identifying that the request is associated with the first index; directing the request associated with the first index to the second index server when the first index server is not available.