Hewlett-packard Development Company, L.P.

Gary Lee Thunquest

Roland M Hochmuth

Robert Paul Martin

James Walter Wichelman

Robert D Thompson

Peter M Maddocks

Stuart Yoshida

Mark Evan Mills

Lawrence E Rupp

Systems and methods for data snapshot replication are disclosed. In an exemplary implementation, a method for data snapshot replication may include inserting a token into a replication link when a data snapshot is generated at a source. The token may be inserted into the replication link while input/output (I/O) operations are quiesced. The method may also include generating the data snapshot on a target in an order that the token is received. This enables systems which are replicating data to also replicate or duplicate snapshots without transferring additional data or re-transmitting the data in the snapshot.

Systems and methods for data snapshot replication using a token in a replication link

Systems and methods for presenting managed data from one or more applications are invented and disclosed. A data storage management system comprises a data store, a data storage manager, and a graphical user interface. The data storage manager is communicatively coupled to the data store and configured to allocate and use logical and physical storage elements of the data store via an application instance. The graphical user interface exposes data storage in application specific storage units. A method for managing data comprises coupling a data store to one or more applications, allocating storage on the data store in accordance with respective storage requirements expressed as an application instance associated with each of the one or more applications, and using a graphical user interface to expose the data store in application storage units associated with the one or more applications.

Systems and methods for presenting managed data

A method for a file server to support snapshots in a storage area network (SAN) providing a plurality of clients with concurrent direct I/O access to a file system in the SAN, in which the SAN uses an access protocol for file system access. The method includes operating the file server to: start to maintain, at a time T, a time Tsnapshot volume of a live volume of data in the file system; receive, from a client Cat a time subsequent to T, an update access request for a portion of a file that includes data stored in access unit Bof the live volume subsequent to time T; and responsive to the update access request, allocate, to the time Tsnapshot volume, a new access unit Bcorresponding to access unit Band copy data stored in access unit Bto access unit B

Method and apparatus for supporting snapshots with direct I/O in a storage area network

A security-enhanced network storage device. Apparatus and methods disclosed which allow network-connected client systems or groups of such systems to access data storage devices over the network in a highly secure fashion. Systems not having the appropriate permission are excluded from access. Characteristics of such a network attached storage device include the following: (1) Clients can only access the data they have been given permission to access, based on a combination of access control lists and physical system interconnects. (2) Client data access permissions in representative embodiments are stored and managed on the security-enhanced network attached storage device and are not accessible by clients, thereby improving data security. (4) Client access permissions can be checked on a per-IP-packet basis, so that all data transfers can be validated before they occurs, thus also, improving data security. (5) Clients interact with security-enhanced network attached devices in essentially the same manner with which they interact with traditional network-based file systems. (6) In addition, new individual client systems can be automatically given access to appropriate storage by adding them to the client grouping without having to update an access control list which is maintained in the security-enhanced network attached storage device.

Growing community of inventors

Berthoud, CO, United States of America

Gary Lee Thunquest