Patent ID: 8037026
Filing Date: 2011-10-11
Classification: G06F

Abstract:
1. A method for a data storage system to allow a user on a host system coupled to the data storage system to update a snapshot in the data storage system, the user being without general editing privileges in the data storage system, the method comprising: creating a read-write snapshot in the data storage system, the read-write snapshot being a copy of production data, the production data being in the data storage system; exporting a logical unit number (LUN) assigned to the read-write snapshot to the host system; providing the user with read and write access to the read-write snapshot but not write access to the production data; receiving a request to update the read-write snapshot from the user; determining from an access control list if the user is permitted to update the read-write snapshot; when the user is permitted to update the read-write snapshot, updating the read-write snapshot by: