MANAGING OWNERSHIP OF REDUNDANT DATA

摘要

According to one embodiment, a method includes storing instances of a file in a first storage tier and a second storage tier of a storage system, wherein the second storage tier uses less expensive and/or slower-to-access storage media than the first storage tier. Each instance of the file on the first and second storage tier is associated with a unique program identifier (UPI). A request to access the file or instance thereof is received from a user in a group of users, and a UPI associated with an instance of the file that exists on the first storage tier is searched for. Remote access to the instance of the file on the first storage tier is provided to the user requesting access to the file. Additional embodiments are also presented.

主权项

1. A storage system, comprising:
a first storage tier; a second storage tier; a controller configured to: store instances of a file in the first storage tier and the second storage tier; associate each instance of the file on the first and second storage tier with a unique program identifier (UPI); receive a request to access the file or instance thereof from a user in a group of users; search for a UPI associated with an instance of the file that exists on the first storage tier; and provide the user requesting access to the file with remote access to the instance of the file on the first storage tier.