Patent ID: 9600490
Date: 2017-03-21
CPC Classifications: G06F

Claim:
1. A method, comprising: receiving a first input/output (I/O) request at a deduplication system node; performing a first lookup in a cache before accessing a deduplication dictionary; accessing the deduplication dictionary to determine a first location having data corresponding to the read I/O request; maintaining in the cache a plurality of headers for a plurality of datastores related to the first location, wherein the cache is configured to maintain the plurality of headers for the plurality of datastores related to the first location upon receiving the read I/O request associated with a single datastore at the first location; receiving a second I/O request at the deduplication system node; performing a second lookup in cache before accessing the deduplication dictionary; responding to the second I/O request without accessing the deduplication dictionary.