| Patent application number | Description | Published |
|---|
| 20090094251 | Virtualized data storage vaults on a dispersed data storage network - A system, method, and apparatus for implementing a plurality of dispersed data storage networks using a set of slice servers are disclosed. A plurality of information records are maintained, with each information record corresponding to a dispersed data storage network. The information record maintains what slice servers are used to implement the dispersed data storage network, as well as other information needed to administer a DDSN, such as the information dispersal algorithm used, how data is stored, and whether data is compressed or encrypted. | 04-09-2009 |
| 20090094318 | Smart access to a dispersed data storage network - An improved system for accessing data within a distributed data storage network (“DDSN”) is disclosed. In a system implementing the disclosed invention, traffic is routed to individual slice servers within the DDSN in accordance with objective criteria as well as user-defined policies. In accordance with one aspect of the disclosed invention, when a data segment is written to a DDSN, the segment is divided into multiple data slices, which are simultaneously transmitted to different slice servers. In accordance with another aspect of the disclosed invention, when a data segment is read from a DDSN, a list of slice servers, each containing a data slice that could be used to reconstruct the requested data segment, is assembled, and sorted in accordance with a preference rating assigned to each of the slice servers. Sufficient data slices to reconstruct the data segment are then read in accordance with the preference ranking of the slice servers. | 04-09-2009 |
| 20100023524 | Block based access to a dispersed data storage network - A block-based interface to a dispersed data storage network is disclosed. The disclosed interface accepts read and write commands from a file system resident on a user's computer and generates network commands that are forwarded to slice servers that form the storage component of the dispersed data storage network. The slice servers then fulfill the read and write commands. | 01-28-2010 |
| 20100115063 | SMART ACCESS TO A DISPERSED DATA STORAGE NETWORK - A method for reading data from a dispersed data storage network that includes a plurality of slice servers. The method begins by accessing a list of slice servers of the plurality of slice servers, wherein each slice server on the list stores at least one data slice associated with a data segment of the data. The method continues by transmitting read requests to at least some of the slice servers on the list. The method continues by receiving a data slice from a slice server on the list. The method continues by determining whether a threshold number of data slices has been received. The method continues, when the threshold number of data slices has been received, assembling the data segment from at least the threshold number of data slices. | 05-06-2010 |
| 20100161916 | METHOD AND APPARATUS FOR REBUILDING DATA IN A DISPERSED DATA STORAGE NETWORK - A method begins by identifying a data slice requiring rebuilding to produce an identified data slice, wherein the identified data slice is one of a plurality of data slices that constitute a data segment and wherein each of the plurality of data slices is assigned for storage by a corresponding one of a plurality of data slice servers. The method continues by retrieving at least m number of data slices from at least m number of the plurality of data slice servers, wherein m data slices of the plurality of data slices enable reconstruction of the data segment, and wherein the at least m number of data slices does not include the identified data slice. The method continues by reconstructing the identified data slice from the at least m number of data slices to produce a rebuilt data slice. The method continues by writing the rebuilt data slice to the corresponding one of the plurality of data slice servers or to a new slice server. | 06-24-2010 |
| 20100179966 | VIRTUALIZED DATA STORAGE VAULTS ON A DISPERSED DATA STORAGE NETWORK - A dispersed data storage system includes a plurality of slice servers. In the system, a first set of the slice servers supports a first virtual digital data storage vault and a second set of the slice servers supports a second virtual digital data storage vault. A slice server is in the first and second sets and functions to: receive a request to access a virtual digital data storage vault; determine whether the virtual digital data storage vault is the first or the second virtual digital data storage vault; when the virtual digital data storage vault is the first or the second virtual digital data storage vault, determine whether the request is valid; and when the request is valid, execute the request to generate a response. | 07-15-2010 |
| 20100306578 | RANGE BASED REBUILDER FOR USE WITH A DISPERSED DATA STORAGE NETWORK - A message is generated by a computer operating on a dispersed data storage network indicating the inaccessibility of a plurality of data slices. A rebuilder application operates on the dispersed data storage grid and rebuilds inaccessible data slices, including those identified by the message. | 12-02-2010 |
| 20110072115 | BLOCK BASED ACCESS TO A DISPERSED DATA STORAGE NETWORK - A computer includes a data transform algorithm, a data dispersal algorithm, and a network port. The data transform algorithm performs a data transformation on a data block to produce a transformed data block. The data dispersal algorithm performs a data dispersal function on the transformed data block to produce a plurality of data slices, wherein each of the plurality of data slices includes less than all data contained in the transformed data block. The network port is operable to transmit a plurality of write commands to a plurality of slice servers, wherein each of the plurality of write commands includes a corresponding one of the plurality of data slices. The network port is further operable to receive verification of storage of at least some of the plurality of data slices from at least some of the plurality of slice servers. | 03-24-2011 |
