| Patent application number | Description | Published |
|---|
| 20120123999 | SYSTEM AND METHOD FOR MANAGING DATA WITH SERVICE LEVEL AGREEMENTS THAT MAY SPECIFY NON-UNIFORM COPYING OF DATA - Systems and methods are disclosed for a system for managing data in accordance with service level agreements (SLAs) that specify schedules on a calendar basis for performing prescribed data management functions and for reducing inter-function redundancy. This system may include a data management engine for performing data management functions, including at least a snapshot function, and at least one back-up function. The data management engine may include a service level policy engine that receives SLAs in electronic form and which controls the scheduling of the data management functions. Each electronic SLA may be associated with a corresponding application and may specify at least one service level policy, each policy specifying a source pool, a destination pool, a copy frequency, a retention period and schedule information. A collection of policies is capable of expressing a non-uniform schedule for when a given function should be performed. | 05-17-2012 |
| 20120124306 | SYSTEM AND METHOD FOR PERFORMING BACKUP OR RESTORE OPERATIONS UTILIZING DIFFERENCE INFORMATION AND TIMELINE STATE INFORMATION - Systems and methods for backing-up data from a first storage pool to a second storage pool using difference information between time states are disclosed. The system has a data management engine for performing data management functions, including at least a back-up function to create a back-up copy of data. By executing a sequence of snapshot operations to create point-in-time images of application data on a first storage pool, each successive point-in-time image corresponding to a specific, successive time-state of the application data, a series of snapshots is created. The snapshots are then used to create difference information indicating which application data has changed and the content of the changed application data for the corresponding time state. This difference information is then sent to a second storage pool to create a back-up copy of data for the current time-state. | 05-17-2012 |
| 20120124307 | SYSTEM AND METHOD FOR PERFORMING A PLURALITY OF PRESCRIBED DATA MANAGEMENT FUNCTIONS IN A MANNER THAT REDUCES REDUNDANT ACCESS OPERATIONS TO PRIMARY STORAGE - Systems and methods are disclosed for performing a plurality of prescribed data management functions in a manner that reduces redundant access operations to primary storage, where the system includes a data management engine for performing data management functions, including at least a snapshot function and a back-up function. An electronic service level agreement (SLA) specifies a schedule for performing data management functions, where point-in-time images of data include a reference to a baseline image and difference data indicating changes at a later, specific point in time. The data management system also creates a point-in-time image of the primary storage data in response to a schedule requiring some data management functions to be performed concurrently, and communicates the difference information to secondary storage to update the back-up copy of the primary data, such that the primary storage is accessed only once for all updates to the secondary storage. | 05-17-2012 |
| Patent application number | Description | Published |
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| 20080205882 | Extended range for CWDM optical transport - A optical transmission system includes light sources generating light of at least two wavelengths, where any two adjacent wavelengths are separated by less than 10 nm. The wavelengths fall within the zero dispersion zone of an optical fiber, and may be shifted by 1 nm or less to reduce crosstalk effects. | 08-28-2008 |
| 20090052910 | Automatic dual receiver in a multi-wavelength fiber optic system - An optical-to-electrical converter may include and/or involve a splitter to separate one or more narrowcast signals from a broadcast signal, at least one broadcast signal receiver to receive the broadcast signal separated from one or more narrowcast signals, at least one narrowcast signal receiver to receive the narrowcast signal separated from the broadcast signal, the narrowcast receiver including an attenuator and a filter, and a controller including logic to dynamically monitor and adjust the attenuator to maintain separation between the broadcast and narrowcast signals. | 02-26-2009 |
| 20090290879 | WAVELENGTH DISTRIBUTION FOR OPTICAL TRANSPORT - An optical communication system includes logic to communicate using optical channels set outside a fiber zero dispersion zone, and having channel spacing that decreases with increasing distance from the fiber zero dispersion zone. | 11-26-2009 |
| 20090297153 | Four quadrant linearizer - A system includes a laser generator, and a signal distortion generator circuit inline with the laser generator modulation signal and configured to generate distortion vectors in any of four distortion vector quadrants. | 12-03-2009 |
