Abstract: Methods and systems of causation of a data read operation against a first storage system by a server associated with a second storage system according to a host generated instruction are disclosed. In an embodiment, a method of causing a data read operation against a first storage system, the data read operation performed by a server associated with a second storage system according to a machine-readable instruction generated by a host directly associated with the first storage system. The method further includes saving data from the host to the first storage system, creating a record of at least one data write comprising the data saved to the first storage system, and using a variable contained in the record to process a mapping scheme resulting in knowledge of at least one physical offset in the first storage system to receive the at least one data write.

Abstract: Systems and methods of event driven recovery management are disclosed. In one embodiment, a method of providing event driven recovery management includes continually copying one or more data blocks that are generated from a computing device, associating at least one event marker with the copies of the one or more data blocks, and allowing access to the copies of the one or more data blocks according to the at least one event marker in order to provide event driven recovery. For purposes of this disclosure, an event marker, a book mark, an application consistency point, and/or a business event are interchangeably used, depending on the context.

Abstract: Systems and methods of event driven recovery management are disclosed. In one embodiment, a method of providing event driven recovery management includes continually copying one or more data blocks that are generated from a computing device, associating at least one event marker with the copies of the one or more data blocks, and allowing access to the copies of the one or more data blocks according to the at least one event marker in order to provide event driven recovery. For purposes of this disclosure, an event marker, a book mark, an application consistency point, and/or a business event are interchangeably used, depending on the context.

Abstract: Systems and methods of event driven recovery management are disclosed. In one embodiment, a method of providing event driven recovery management includes continually copying one or more data blocks that are generated from a computing device, associating at least one event marker with the copies of the one or more data blocks, and allowing access to the copies of the one or more data blocks according to the at least one event marker in order to provide event driven recovery. For purposes of this disclosure, an event marker, a book mark, an application consistency point, and/or a business event are interchangeably used, depending on the context.

Abstract: A continuous data backup and access method/system using virtual machines is disclosed. In one embodiment, a method includes creating a virtual machine associated with a backup module based on attributes of an application server when the application server is connected to a network having the backup module, continuously capturing any change of a data processed in the application server, and automatically backing up the any change of the data in a storage device coupled to the backup module using the virtual machine, and communicating at least the data in the storage device to the application server using the virtual machine when a command is communicated to the backup module. The method may also include automatically recovering a recent attribute and data of the application sever using the virtual machine associated with the backup module when the application sever fails.

Abstract: Systems and methods of coalescing and capturing data between events prior to and after a temporal window are disclosed. In an embodiment, a method includes determining a temporal window based on one or more of a user data and an automatically generated data, coalescing data between events prior to the temporal window using a processor and a physical memory and capturing data between events after the temporal window. The coalescing data between events prior to the temporal window may be determined by a set of overlapping operations to a data set, wherein certain operations have non-overlapping sectors which are not coalesced. Shifting a data view around a recovery point through a direction-agnostic roll algorithm that may use a roll-forward algorithm to shift the data view to a time after the recovery point and/or a roll-backward algorithm to shift the data view to a time before the recovery point.

Abstract: A method and system of recovery point data view shift through a direction-agnostic roll algorithm is disclosed. The method includes forming a data view around a recovery point, and shifting the data view around the recovery point through a direction-agnostic roll algorithm that uses at least one of a roll-forward algorithm to shift the data view to a time after the recovery point and a roll-backward algorithm to shift the data view to a time before the recovery point. A data integrity is determined to be consistent at the recovery point by examining data and meta-data associated with the recovery point. The recovery point is associated with one of an automatically generated event, a user definable event, and/or a prepackaged event. A marker data is generated at the recovery point to enable the direction-agnostic roll algorithm to reduce a recovery time objective when an algorithm is applied.

Abstract: Machine readable instructions, methods, and systems of causation of a data read against a first storage system to optionally store a data write to preserve the version to allow viewing and recovery are disclosed. In an embodiment, a system for providing secondary data storage and recovery services for one or more networked host nodes includes a server application for facilitating data backup and recovery services; a first data storage medium accessible to the server application; a second data storage medium accessible to the server application; and at least one client application for mapping write locations allocated by the first data storage medium to write locations represented in a logical view of the first data storage medium.

Abstract: A method and systems of a time ordered view of backup data on behalf of a host are disclosed. In an embodiment, a method to provide a time-ordered snapshot view on behalf of a host of a specified portion of a backup of a first storage system data container stored at a second storage system includes initiating an order at the host to obtain a view of a data container. The order specifies a date and time of the ordered view. The method further includes receiving the order at a server adapted to assemble and enable access to the ordered view, and at the server, accessing the second storage system according to the date and time of the ordered view and accessing an applicable data write representing a data change to the data container.

Abstract: A method and system of tiered quiescing is disclosed. In one embodiment, a method includes generating a representation data of a multi-tier network, embedding a flag marker at a transaction event based on at least of an event data and a timing data, and quiescing, based on the representation data, a set of modules of the multi-tier network associated with at least one of the event data and the timing data using the flag marker. The representation data may be generated based on a transaction modeling of data flows between the set of modules of the multi-tier network (e.g., the set of modules may each operate in different tiers of the multi-tier network). In addition, a series of consistency points may be determined based on the transaction modeling of data flows between the sets of modules of the multi-tier network.

Abstract: Methods and a system to acquire and perform write validation of data generated by one or more networked host nodes to perform secondary storage are disclosed. According to one embodiment, a method to passively acquire and perform write validation of data generated by one or more networked host nodes to perform secondary storage in a SAN-based data storage and recovery network includes generating data to store in primary storage. The method further includes generating metadata describing the data generated to store in primary storage, sending the data and metadata to a primary SAN storage device, acquiring passive access to data traveling a data path between a generating node and the primary SAN storage device, the data mirrored over an access line to a secondary storage server. The method further includes receiving, at the secondary storage server, an exact copy of a data stream that passes a splitter.

Abstract: A software suite, a method and a system of configuring hosts of a secondary data storage and recovery system are disclosed. In an embodiment, a system includes hosts saving data in primary storage devices, a software suite to provide secondary storage and a recovery service to one or more networked node includes a portion to configure at least one network node to perform a service, a portion to order a service and to generate metadata about data generated to store in secondary storage using a processor and a non-volatile memory, and a portion to perform data write validation and a portion to receive and prepare data to store in secondary storage. The portion to perform service configuration, the portion to perform ordering, and the portion to perform metadata generation are part of a client instance may be provided one instance per to the one or more networked node.

Abstract: A system for providing secondary data storage and recovery services for one or more networked host nodes includes a server application for facilitating data backup and recovery services; a first data storage medium accessible to the server application; a second data storage medium accessible to the server application; at least one client application for mapping write locations allocated by the first data storage medium to write locations represented in a logical view of the first data storage medium; and at least one machine instruction enabling direct read capability of the first data storage medium by the server application for purposes of subsequent time-based storage of the read data into the secondary data storage medium.

Abstract: A method, apparatus, and system of a sequencing technique to account for a clock error in a storage area network are disclosed. In one embodiment, a system of a backup server includes a processing module to examine a data timestamped with a sequence of characters denoting a time according to a clock source, an analysis module to determine that the data has been timestamped at an earlier time than an other data previously received, a substitution module to provide the data an incremental sequence number placed with the data using an algorithm until a new data is received that includes a future timestamp with a later timestamp than the timestamp of the other data, and a storage module to store the data.

Abstract: A method, system, and apparatus of minimizing configuration of changes in a fabric-based data protection solution. In one embodiment, a method includes configuring a switch such that a write request to a primary storage device is transferred through a virtual initiator in the switch to the primary storage device and to a secondary storage device, and configuring the switch such that a read request from the secondary initiator of a data in the primary storage device appears as though the read request is coming from a physical initiator rather than the secondary initiator (e.g., such that system protocol may be bypassed because the switch intercepts a response having the data from the primary storage device through a virtual target which uses the virtual initiator of the switch to communicate the data to the secondary initiator rather than the physical initiator).

Abstract: A system for providing secondary data storage and recovery services for one or more networked host nodes has a server application for facilitating data backup and recovery services; at least one client application for facilitating host node configuration to receive services; a secondary data storage medium; and at least one mechanism for passive acquisition of data from the one or more host nodes for storage into the secondary data storage medium by the server application. In a preferred embodiment secondary storage is streamlined through continuous data backup and enhanced by elimination of redundant write data.

Abstract: A method and system of recovery point data view shift through a direction-agnostic roll algorithm is disclosed. In one embodiment, a method includes forming a data view around a recovery point, and shifting the data view around the recovery point through a direction-agnostic roll algorithm that uses at least one of a roll-forward algorithm to shift the data view to a time before the recovery point and a roll-backward algorithm to shift the data view to a time before the recovery point. A data integrity may be determined to be consistent at the recover point by examining data and meta-data associated with the recovery point. The recovery point may be associated with at least one of an automatically generated event, a user definable event, and a prepackaged event. A marker data may be generated at the recovery point to enable the direction-agnostic roll algorithm to reduce a recovery time objective when an algorithm is applied.

Abstract: Ensuring data persistence and consistency in enterprise storage backup systems method and apparatus are disclosed. In one embodiment, a method includes creating a data log structure (e.g., a log file) on a storage device (e.g., a Serial ATA drive, a SCSI drive, a SAS drive, a storage are network, etc) coupled to an application server to store a backup data generated by a filter module in a continuous backup environment and buffering the backup data generated by the filter module through a memory module that transfers the backup data to the data log structure on the storage device based on an occurrence of an event. The data log structure may be created by configuring a portion of the storage device as a dedicated resource available to the memory module to copy the backup data and the data log structure may be a file on the storage device coupled to the application server having the file system.