Abstract: A method for copying data efficiently within a deduplicating storage system eliminates the need to read or write the data per se within the storage system. The copying is accomplished by creating duplicates of the metadata block pointers only. The result is a process that creates and arbitrary number of copies using minimal time and bandwidth.

Abstract: A virtual storage network may be implemented and exposed as a single virtual namespace, using physical disk storage distributed across multiple computing devices. In various embodiments, each computing device contributing physical disk storage to the virtual storage network may include one or more virtual block devices configured to provide a local interface to the virtual storage network, an application programming interface (API) or other software components to translate the local data access requests into tuple-space operations compatible with the tuple-space data model, and/or a tuple-space storage engine configured to provide access to the data tuple-space of the distributed virtual storage network.

Abstract: A virtual storage network may be implemented and exposed as a single virtual namespace, using physical disk storage distributed across multiple computing devices. In various embodiments, each computing device contributing physical disk storage to the virtual storage network may include one or more virtual block devices configured to provide a local interface to the virtual storage network, an application programming interface (API) or other software components to translate the local data access requests into tuple-space operations compatible with the tuple-space data model, and/or a tuple-space storage engine configured to provide access to the data tuple-space of the distributed virtual storage network.

Abstract: A method and system of optimizing the performance, capacity and data redundancy in a storage system by defining the LBA range on each storage element managing that corresponding range (slice) on each device using a data protection method optimized for the performance and level of data protection required. The creation of such a storage array along with the replacement of failed elements and the expansion of the capacity through the addition of additional elements is managed is an automatic and transparent manner.

Abstract: A method and system of optimizing the memory usage and performance of data deduplication storage systems includes organizing the metadata of data blocks needed by deduplicating storage systems. A three level hierarchy is used. Level 1 stores the metadata on disk along with the user data. Level 2 uses low latency storage (e.g. RAM and Solid State Disks) to cache the on-disk meta data for faster direct access. Level 3 organizes the fingerprints using a Trie and is entirely resident in RAM. Thus, the search, to determine whether a data block is unique or not and a candidate for transfer, can be more efficiency executed and to ensure that the meta data is transactionally secure.

Abstract: A method for copying data efficiently within a deduplicating storage system eliminates the need to read or write the data per se within the storage system. The copying is accomplished by creating duplicates of the metadata block pointers only. The result is a process that creates and arbitrary number of copies using minimal time and bandwidth.

Abstract: A method and system of optimizing the performance, capacity and data redundancy in a storage system by defining the LBA range on each storage element managing that corresponding range (slice) on each device using a data protection method optimized for the performance and level of data protection required. The creation of such a storage array along with the replacement of failed elements and the expansion of the capacity through the addition of additional elements is managed is an automatic and transparent manner.

Abstract: A method and system is provided for copying data between two deduplicating storage systems. A list of unique fingerprints is compiled from the data which will be sent. This list is transmitted to the receiving system during a preliminary data exchange called the preamble. The receiving system replies with a second list which contains the unique fingerprints of the data which either needs to be sent or can be omitted. Which list depends on the size of the list where the smaller list is sent for efficiency and lower bandwidth consumption. A reference list of duplicate blocks being sent is retained on the receiving system until the copy operation is complete. This reference list is used to protect blocks on the receiving system by deferring deletions until the incoming hallow block can reference the duplicate block on the receiver to confirm that is on the target system and should not be deleted.

Abstract: A method and system is provided for copying data between two deduplicating storage systems. A list of unique fingerprints is compiled from the data which will be sent. This list is transmitted to the receiving system during a preliminary data exchange called the preamble. The receiving system replies with a second list which contains the unique fingerprints of the data which either needs to be sent or can be omitted. Which list depends on the size of the list where the smaller list is sent for efficiency and lower bandwidth consumption. A reference list of duplicate blocks being sent is retained on the receiving system until the copy operation is complete. This reference list is used to protect blocks on the receiving system by deferring deletions until the incoming hallow block can reference the duplicate block on the receiver to confirm that is on the target system and should not be deleted.