Netapp, Inc.

Network Appliance, Inc.

Boris Teterin

Santosh C Lolayekar

Balamurali Palaiah

Vani Bappanadu

Neelesh M Thakur

Kumar Parthasarathi

Manish D Patel

Konstantinos Roussos

Vasantha Sadananda Prabhu

Ritesh Tiwari

Gaurab Paul

Rushi Srinivas Surla

Song Li

Jeffrey Alan Fultz

Manish Patel

Described herein are systems and methods for providing data policy management over application objects in a storage system environment. An application object may comprise non-virtual or virtual objects (e.g., non-virtual-based applications, virtual-based applications, or virtual storage components). An application object manager may represent application objects by producing mapping graphs and/or application object data that represent application objects in a standardized manner. A mapping graph for an application object may describe a mapping between the application object and its underlying storage objects on a storage system. Application object data may describe a mapping graph in a standardized format. Application object data representing application objects may be received by an application policy manager that manages data policies on the application objects (including virtual applications and virtual storage components) based on the received application object data. Data policies may include policies for backup, service level objectives, recovery, monitoring and/or reporting.

System and method for managing data policies on application objects

A system implements a method to non-disruptive restoration of storage services provided by a storage volume of the system. Upon detecting a disruption of storage services at the storage volume, the method freezes the input/output (I/O) operations of applications that are accessing the storage volume. The disrupted storage services are restored. And the configurations of the storage volume are maintained during restoration of the disrupted storage services. Afterward, the frozen I/O operations are activated, allowing the applications to continue their accessing of the storage volume.

Non-disruptive restoration of a storage volume

System and method for representing application objects in standardized form for policy management

According to one or more of the provisions set forth herein, data can be managed in a data storage system in an efficient manner. In one example, a first flexible copy volume of data is generated based on a snapshot copy volume of a flexible volume containing the data. The first flexible copy volume is configured to be operated upon according to a first set of operations. A second flexible copy of the data is also generated based on the snapshot copy volume. The second flexible copy volume is configured to be operated upon according to a second set of operations that differs from the first set of operations. Having a second copy of the data allows testing or other operations to be performed on the data while also maintaining an original version of the data.

Flexible copies having different sub-types

A computer system and method for caching configuration information for use in mounting and/or unmounting snapshot LUNs of a network-based storage system are disclosed. During a first request to mount a snapshot LUN, a discovery operation is performed at a host system to discover various configuration information used in mounting and unmounting various LUNs of a storage system to a host system. The configuration information is used to process the first request and then the configuration information is cached. During a subsequent request to mount a second snapshot LUN, the cached configuration information can be used to mount the second snapshot LUN, thereby avoiding a second discovery operation.

Method and system for mounting logical unit numbers (LUNS) of snapshots

One or more data mirroring techniques are provided in which data storage units are pre-connected to a host node in a clustered network, in preparation for a potential data access failure. One or more data storage units are mirrored (e.g., replicated) between a source volume and a destination volume. A destination host node is pre-connected to the one or more mirrored data storage units in a destination volume prior to a data access failure at the source volume. After a data access failure occurs at the source volume (e.g., due to a hardware failure) access to the mirrored one or more data storage units is granted in an efficient manner due to the pre-connection of the destination node to the one or more mirrored data storage units.

Fast recovery in data mirroring techniques

A writeable clone of a read-only dataset, e.g., an RPPI of a file system, a mirror file system, etc., is created to make the read-only dataset appear from a client's perspective to be modifiable/writeable, yet without actually modifying the read-only dataset itself. Any change attempted to be made on the read-only dataset is stored in the writeable clone. In one embodiment, the clone shares data blocks with the read-only dataset.

Method and system to make a read-only file system appear to be writeable

Growing community of inventors

Redwood City, CA, United States of America

Boris Teterin