Emc Corporation

Emc IP Holding Company LLC

Rajesh Gandhi

Venkata R Tiruveedi

Keith Alan Carson, Jr

Norman Speciner

Amitava Roy

Boris Farizon

Daniel Stanton Keefe

Robert Andrew Foulks

Shyamsunder Singaraju

Anoop George Ninan

Ying Xie

Samuil Shmuylovich

Lorenzo Bailey

Vitaly Rozenman

Benjamin Bushoy

Arun Kumar Palani

Pushpalatha Tantrady

Amit Roy

Anuragh Ravindran

Anitha Athipathy

Hongxin Zhang

Hanumantha Reddy Narayana

Ken Kim

Svetlana Patsenker

Richard T Simon

Venkata Ramana Rao Tiruveedi

A method, computer program product, and computing system for determining, at the computing device, one or more dependencies associated with a plurality of managed objects and a plurality of backend objects. One or more backend notifications associated with one or more backend objects of the plurality of backend objects may be received. One or more managed objects of the plurality of managed objects associated with the one or more backend objects of the one or more backend notifications may be identified, based upon, at least in part, the one or more dependencies associated with the plurality of managed objects and the plurality of backend objects. The one or more identified managed objects of the plurality of managed objects may be updated based upon, at least in part, the one or more backend notifications.

Data management system and method

Techniques are disclosed for managing access to shared computing resources in a computing system which include representing resources as objects and managing access to those objects using the construct of a resource instance manager. A set of resource instance managers responds to all commands requesting access to a set of respective shared resources. Access to each shared resource is managed by a unique resource instance manager for that resource which maintains a consistent state for that shared resource. Each resource instance manager determines, in response to receiving requests to allow execution of commands and using a set of predefined rues, whether those commands may be safely executed concurrently with other commands acting on the same shared resource. If the commands cannot be executed concurrently, the resource instance managers change the order in which queued commands are executed or abort execution of one or more commands.

Dynamic management of concurrent access to shared computing resources

A method, computer program product, and computing system for determining, at the computing device, one or more dependencies associated with a plurality of managed objects and a plurality of backend objects. A plurality of consistency groups with one or more managed objects of the plurality of managed objects and one or more backend objects of the plurality of backend objects may be generated based upon, at least in part, the one or more dependencies associated with the plurality of managed objects and the plurality of backend objects. The one or more backend objects of the plurality of consistency groups may be fetched. The one or more managed objects of the plurality of consistency groups may be updated based upon, at least in part, the one or more fetched backend objects.

Improved techniques for running different flavors of a service in different host environments. Each service is defined by a service type and host environment in which the service can be run. The techniques employ a service loader for obtaining the service type and host environment data, and loading a service flavor based on the service type and host environment data. By providing a service loader that, in response to a service request, can access host environment data from an operating system, access metadata describing host environments in which service objects for an application can be run, and determine which service flavor to load based on the service type and host environment data, appropriate service flavors can be loaded onto a system while avoiding application hanging and/or errors conditions due to a mismatch between a current host environment and the host environments in which a service object can be successfully run.

Systems and methods of running different flavors of a service provider in different host environments

Techniques are disclosed for provided automatic fault tolerance in data storage systems and other computer systems managing access to shared computing resources using the construct of a resource instance manager together with an architecture for designing and implementing task-oriented state-based commands for accessing the shared computing resources. A set of resource instance managers respond to all commands requesting access to a set of respective shared resources. Access to each shared resource is managed by a unique resource instance manager for that resource which maintains a consistent state for that shared resource. When commands are designed appropriately, the system can be restored using a system state history maintained transparently by a system-provided application program interface.

Automatic fault tolerance in a computing system providing concurrent access to shared computing resource objects

A method of generating a test database from a deployed database by 'sanitizing', or removing sensitive data, is employed for recreating problem scenarios from a customer site, verifying compatibility of customer data with database version updates, and for performance testing using actual, rather than generated, database structures. In database management operations, in can be beneficial to use data generated from actual operational scenarios rather than artificially generated data created from a test pattern. Data generated from actual operation, such has at a customer site, assures compatibility with the relation patterns and record volumes employed by the customer (user). However, databases often contain sensitive information that would be inappropriate, illegal, or vulnerable in a testing environment. Accordingly, the generated test database overwrites sensitive data values with benign, or generic values while preserving the structure and relations of the data stored.

Method and apparatus for database sanitizing

Techniques are disclosed for managing access to shared computing resources in a computing system which include representing resources as objects and managing access to those objects using the construct of a resource instance manager. A set of resource instance managers respond to all commands requesting access to a set of respective shared resources. Access to each shared resource is managed by a unique resource instance manager for that resource which maintains a consistent state for that shared resource. When commands are designed according to an appropriate model and processed by a set of resource instance managers disclosed herein, multiple processes may execute in parallel without causing deadlocks or introducing data corruption.

Providing concurrent access to shared computing resources by interleaving commands and maintaining a consistent object state

Data structures, methods, and apparatus useful in configuring agent services operating in a storage area network are provided. The data structures may include a list of agent types for which agent services are configurable for operation by agents of those agent types in a storage area network; for each agent type in the list of agent types, a corresponding list of configurable agent services operable by agents of the agent type; for each configurable agent service in each list of configurable agent services, a corresponding list of configurable parameters for the configurable agent service; and for each configurable parameter in each list of configurable parameters, at least one parameter value associated with the configurable parameter. Procedures and apparatus are provided for configuring agent services by updating elements of the data structures and providing the updated elements to the agent services.

Configuring agent services operable by agents in a storage area network

Generic method and apparatus for database sanitizing

A SAN management application maintains configuration information in a near real-time (RT) manner for timely and accurate responses to queries. A database manager responsive to the management application aggregates information concerning both current and historical configurations by combining current and historical information sets as a common (DB) database portal responsive to an individual query for configuration data from both current and historical data. The common portal avoids redundant and duplicative entries between the current and historical information sets, and is responsive to the management application for maintaining each change on only one of the current and historical information sets. Configuration changes add, update and move data items between the current and historical information sets, but need not store a configuration change in both the current and history information sets.

Network configuration history tracking

A database environment includes a staging database and master database. Among other functions, the staging database provides a location to store data prior to be copied over the master database. Each time the database environment is modified (e.g., a developer specifies a different configuration associated with the staging database and/or the master database), a database administrator initiates execution of an auto-repository process to automatically generate a corresponding new set of routines enabling management of the database environment. Accordingly, each time there are changes to (one or more schemas associated with) the database environment, there is no need for a programmer to manually modify the corresponding management routines based on the changes. Instead, the auto-repository process automatically generates the corresponding set of custom routines to enable management of the database environment.

Automatic generation of routines and/or schemas for database management

A system receives a dataset for storing in a staging database. The dataset contains network management data collected from a managed resource. The system stores the dataset in the staging database, and maintains a changeset identifying changes made to the staging database during the step of storing the dataset. The system synchronizes the staging database and the production database with each other using the changeset.

Methods and apparatus for synchronizing network management data

A system detects an event suggesting a data discrepancy between a staging database and a production database that maintain network management data within a network management system. The staging database is logically separate from the production database. The system prevents modification to the production database, and replaces data in the staging database with data from the production database. The system then allows modification to the production database.

Methods and apparatus for detection and recovery of database out of synchronization conditions

Techniques herein involve anticipating the application of a command to modify objects having associated object data stored in a relational database. Prior to receipt of an object modification command that causes a modification to a respective object and/or an object hierarchy, a computer process generates a set of operational instructions to carry out the object modification command. Generally, the computer process analyzes a structure for storing object data in a relational database to identify information in the relational database that will be impacted as a result of executing a corresponding object modification command. Based on analysis of the structure, the computer process generates the set of operational instructions. The execution of the set of operational instructions to carry out the command causes the respective object and/or object hierarchy to be modified as well as causes a corresponding modification to contents of a relational database storing respective object data.

Methods and apparatus for managing contents of a database

A system receives a dataset for storing in a staging database. The dataset contains network management data collected from a managed resource. The system disengages a connection between the staging database and a production database, and stores the dataset in the staging database. The system then re-engages the connection between the staging database and the production database.

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Shrewsbury, MA, United States of America

Rajesh Gandhi