Patent application number | Description | Published |
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 |
20100169415 | SYSTEMS, METHODS, AND APPARATUS FOR IDENTIFYING ACCESSIBLE DISPERSED DIGITAL STORAGE VAULTS UTILIZING A CENTRALIZED REGISTRY - A centralized depository for storing information regarding a collection of servers and other hardware used to implement a plurality of virtual dispersed data storage containers is disclosed. The centralized depository describes each virtual dispersed data storage container as well as the hardware used to provide the plurality of virtual dispersed data storage containers. Computers operating on or seeking to access specific virtual dispersed data storage containers can obtain the information required for access from the centralized depository. | 07-01-2010 |
20100169500 | SYSTEMS, METHODS, AND APPARATUS FOR MATCHING A CONNECTION REQUEST WITH A NETWORK INTERFACE ADAPTED FOR USE WITH A WITH A DISPERSED DATA STORAGE NETWORK - A gateway module translates access requests from client computers into commands for a plurality of slice servers storing data for a dispersed data storage network. The gateway program maintains a plurality of gateway modules, each providing a different access protocol to the dispersed data storage network, and each also maintaining one or more virtual storage vaults. | 07-01-2010 |
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 |
20100250751 | SLICE SERVER METHOD AND APPARATUS OF DISPERSED DIGITAL STORAGE VAULTS - A slicer server includes a network port, memory, and a central processing module. The central processing unit functions to obtain, via the network port, an information record regarding a virtual dispersed data storage container. The central processing unit further functions to determine whether its list of virtual dispersed data storage containers includes the virtual dispersed data storage container. The central processing unit further functions to, when the list does not include the virtual dispersed data storage container, update the list to include the virtual dispersed data storage container and allocate a portion of the memory to the virtual dispersed data storage container. | 09-30-2010 |
20110016122 | COMMAND LINE INTERPRETER FOR ACCESSING A DATA OBJECT STORED IN A DISTRIBUTED STORAGE NETWORK - A user device includes a DSN interface operably coupled with a DSN memory and a DS processing module for storing and retrieving a data object from the DSN memory, wherein the data object is partitioned into a plurality of data segments and wherein each of the plurality of data segments is stored in the DSN memory as a plurality of encoded data slices that are generated based on an error encoding dispersal function. The user device also includes a command line interpreter operable to interpret a file command as a request to display the data object by an application program, determine the data object is stored in the DSN memory and request the DSN processing module to retrieve the data object from the DSN memory and provide the data object to the application program. | 01-20-2011 |
20110107078 | ENCODED DATA SLICE CACHING IN A DISTRIBUTED STORAGE NETWORK - A distributed storage processing unit encodes data objects into multiple encoded data slices to prevent reconstruction of the original data object using a single encoded data slice, but to allow reconstruction using at least a threshold number of encoded data slices. The distributed storage processing unit can decide to whether and where to cache frequently requested data slices. When retrieving data slices related to a particular data object, a check can be made to determine if the data slices are cached in a temporary memory associated with the distributed storage processing unit, or elsewhere in the distributed storage network. This check can be facilitated by storing data slices and a hash table identifying the location of stored data slices in the same temporary memory. | 05-05-2011 |
20110185253 | DIRECTORY FILE SYSTEM IN A DISPERSED STORAGE NETWORK - A method begins by a processing module receiving a data storage request, wherein the data storage request includes data and a data identifier (ID). The method continues with the processing module dispersed storage error encoding the data to produce a set of encoded data slices and determining a data dispersed storage network (DSN) address. The method continues with the processing module sending the set of encoded data slices to a DSN memory for storage at the data DSN address and updating a directory file with path information corresponding to the data ID and the data DSN address to produce an updated directory file. The method continues with the processing module dispersed storage error encoding the updated directory file to produce a set of encoded updated directory slices and sending the set of encoded updated directory slices to the DSN memory for storage at a directory DSN address. | 07-28-2011 |
20110202568 | VIRTUALIZED DATA STORAGE VAULTS ON A DISPERSED DATA STORAGE NETWORK - A slice server includes a network port, a central processing unit, and memory. The central processing unit (CPU) is operable to receive, via the network port, a request to access a virtual digital data storage vault. The CPU then determines whether the slice server supports the virtual digital data storage vault. When the slice server supports the virtual digital data storage vault, the CPU determines whether the request is valid. When the request is valid, the CPU executes the request to generate a response. | 08-18-2011 |
20110213940 | VIRTUALIZED DATA STORAGE VAULTS ON A DISPERSED DATA STORAGE NETWORK - A method begins with a slice server receiving a request to access a virtual digital data storage vault. The method continues by determining whether the virtual digital data storage vault is a first virtual digital data storage vault or a second virtual digital data storage vault. The slice server supports a portion of each of the first and the second virtual digital data storage vaults. When the virtual digital data storage vault is the first or the second virtual digital data storage vault, the method continues by determining whether the request is valid. When the request is valid, the method continues by executing the request to generate a response. | 09-01-2011 |
20110225386 | DISPERSED STORAGE UNIT CONFIGURATION - A dispersed storage (DS) unit for use within a dispersed storage network is capable of self-configuring using registry information provided to the DS unit. The registry information includes a slice name assignment indicating a range of slice names corresponding to a plurality of potential data slices of potential data objects to be stored in the DS unit. Based on the registry information, the DS unit allocates a portion of physical memory to store the potential data slices. | 09-15-2011 |
20110261813 | LIST RANGE OPERATION DISPERSED STORAGE NETWORK FRAME - A method begins by a processing module generating a payload section of a dispersed storage network (DSN) frame regarding a list range request operation by generating a start slice name field of the payload section to include a start slice name of a slice name range, generating an end slice name field of the payload section to include an end slice name of the slice name range, and generating a maximum response count field of the payload section to include a maximum slice name response count. The method continues with the processing module generating a protocol header of the DSN frame by generating a payload length field of the protocol header to include a payload length that represents a length of the payload section and generating remaining fields of the protocol header. | 10-27-2011 |
20110261838 | DISPERSED STORAGE NETWORK FRAME PROTOCOL HEADER - A method to generate a protocol header of a dispersed storage network (DSN) frame begins by a processing module generating a protocol class field and generating a protocol class version field. The method continues with the processing module generating an operation code (opcode) field and generating a request/response field. The method continues with the processing module generating a request number field and generating a payload length field. The method continues with the processing module outputting, in order, the protocol class field, the protocol class version field, the opcode field, the request/response field, the request number field, and the payload length field. | 10-27-2011 |
20110261839 | WRITE OPERATION DISPERSED STORAGE NETWORK FRAME - A method begins by a processing module generating a payload of a dispersed storage network frame by generating a transaction number field to include a transaction number corresponding to a write request operation and generating one or more slice payload sections, wherein each slice payload section includes generating a slice name field to include a slice name corresponding to an encoded data slice, generating a slice revision numbering field to include a revision number of the slice name, generating a slice length field to include a length of the encoded data slice, and generating a slice payload field to include the encoded data slice. The method continues with the processing module generating a protocol header by generating a payload length field including a payload length representing length of the transaction number field and length of the one or more slice payload sections and generating remaining fields of the protocol header. | 10-27-2011 |
20110261840 | INTERMEDIATE WRITE OPERATION DISPERSED STORAGE NETWORK FRAME - A method begins by a processing module generating a payload of a dispersed storage network (DSN) frame regarding an intermediate write request operation by generating one or more transaction number fields of the payload to include one or more transaction numbers corresponding to a write request operation, wherein the intermediate write request operation is associated with the write request operation. The method continues with the processing module generating a protocol header of the DSN frame by generating a payload length field of the protocol header to include a payload length that represents a length of the one or more transaction number fields and generating remaining fields of the protocol header. | 10-27-2011 |
20110264823 | READ OPERATION DISPERSED STORAGE NETWORK FRAME - A method begins by a processing module generating a payload section of a dispersed storage network (DSN) frame regarding a read request operation by generating one or more slice name fields of the payload section to include one or more slice names corresponding to one or more encoded data slices and generating a transaction number field of the payload section to include a transaction number corresponding to the read request operation. The method continues with the processing module generating a protocol header of the DSN frame by generating a payload length field of the protocol header to include a payload length that represents a length of the payload section and generating remaining fields of the protocol header. | 10-27-2011 |
20110289283 | MEMORY DEVICE UTILIZATION IN A DISPERSED STORAGE NETWORK - A method begins by a processing module determining whether a memory device of a dispersed storage (DS) unit is unavailable to produce an unavailable memory device. The method continues with the processing module determining a methodology regarding DS encoded data stored in the unavailable memory device based on one or more dispersed storage network (DSN) conditions to produce a determined methodology when the memory device is unavailable. The method continues with the processing module initiating, in accordance with the determined methodology, a rebuilding function to rebuild the DS encoded data to produce rebuilt DS encoded data when the determined methodology includes a rebuilding component. The method continues with the processing module storing the rebuilt DS encoded data within available memory of the DS unit. | 11-24-2011 |
20110314058 | COORDINATED RETRIEVAL OF DATA FROM A DISPERSED STORAGE NETWORK - A method begins by a processing module determining to retrieve a dispersed error encoded file from a dispersed storage network wherein the dispersed error encoded file is stored as a plurality of sets of encoded data slices. The method continues with the processing module determining whether a neighboring device has a desire to retrieve the dispersed error encoded file and when the neighboring device has a desire to retrieve the dispersed error encoded file, coordinating retrieving of the dispersed error encoded file such that, collectively, the device and the neighboring device receive at least a decode threshold number of encoded data slices of a first set of encoded data slices and at least the decode threshold number of encoded data slices of a second set of encoded data slices. | 12-22-2011 |
20120117351 | BALANCING MEMORY UTILIZATION IN A DISPERSED STORAGE NETWORK - A method begins by a processing module storing a plurality of encoded data slices in a plurality of memory devices of a dispersed storage (DS) unit of a dispersed storage network (DSN) memory using a quantity load balancing function to substantially balance a quantity of encoded data slices stored within each of the plurality of memory devices, wherein data size of at least some of the plurality of encoded data slices is different. The method continues with the processing module determining whether an available memory imbalance exists between a first memory device of the plurality of memory devices and a second memory device of the plurality of memory devices. The method continues with the processing module migrating one or more encoded data slices between the first and second memory devices to reduce the available memory imbalance when the available memory imbalance exists. | 05-10-2012 |
20130117529 | DISPERSED STORAGE UNIT AND METHOD FOR CONFIGURATION THEREOF - A dispersed storage (DS) unit for use within a dispersed storage network is capable of self-configuring using registry information provided to the DS unit. The registry information includes a slice name assignment indicating a range of slice names corresponding to a plurality of potential data slices of potential data objects to be stored in the DS unit. Based on the registry information, the DS unit allocates a portion of physical memory to store the potential data slices. | 05-09-2013 |
20130138862 | Transferring Encoded Data Slices in a Distributed Storage Network - A method begins by a distributed storage (DS) processing module identifying encoded data slices of stored encoded data slices to transfer, wherein the stored encoded data slices are assigned addresses within a local distributed storage network (DSN) address range, wherein a global DSN address space is divided into a plurality of address sectors, and wherein the local DSN address range is a portion of an address sector. The method continues with the DS processing module determining whether another local DSN address range in the address sector exists and when the other local DSN address range in the address sector exists, determining whether to transfer identified encoded data slices into the other local DSN address range. When the at least some of the identified encoded data slices are to be transferred, the method continues with the DS processing module initiating a data transfer protocol to transfer the identified encoded data slices. | 05-30-2013 |
20130138970 | Deleting Encoded Data Slices in a Dispersed Storage Network - A method begins by a dispersed storage (DS) processing module receiving a request regarding at least a portion of corresponding encoded data slices, wherein a collection of encrypted and encoded data slices of a plurality of collections of encrypted and encoded data slices includes a common data aspect, wherein encrypted and encoded data slices of the collection of encrypted and encoded data slices are produced by individually encrypting corresponding encoded data slices using a common encrypting character string and representations of the corresponding encoded data slices. The method continues with the DS processing module identifying the common encrypting character string of the corresponding encoded data slices. When the request is to delete the corresponding encoded data slices, the method continues with the DS processing module obfuscating the common encrypting character string in a local memory such that the collection of encrypted and encoded data slices are effectively incomprehensible. | 05-30-2013 |
20130151581 | Analyzing Found Data in a Distributed Storage and Task Network - A method begins by a dispersed storage (DS) processing module establishing data identifying criteria for searching data on a network, establishing data analyzing criteria for analyzing found data of the data on the network, and establishing distributed computing criteria. The method continues with the DS processing module distributing the data identifying criteria and the data analyzing criteria to a set of distributed storage and task (DST) units. The method continues with the DS processing module receiving a set of network data partial resultants from the set of DST units, wherein the set of DST units generates the set of network data partial results in accordance with the data identifying criteria to produce found data and analyzing the found data in accordance with the data analyzing criteria. The method continues with the DS processing module processing the set of network data partial resultants to produce a network data resultant. | 06-13-2013 |
20130151925 | Distributed Computing in a Distributed Storage and Task Network - A method begins by a dispersed storage (DS) processing module selecting a set of distributed storage and task (DST) execution units for executing a task and determining dispersed storage error coding parameters for data. The method continues with the DS processing module dispersed storage error encoding the data in accordance with the parameters to produce a plurality of encoded data blocks and grouping the plurality of encoded data blocks into a plurality of encoded data block groupings. The method continues with the DS processing module partitioning the task into a set of partial tasks, outputting at least some of the plurality of encoded data block groupings to the set of DST execution units, and outputting the set of partial tasks to the set of DST execution units for execution of the set of partial tasks on the at least some of plurality of encoded data block groupings. | 06-13-2013 |
20130151927 | Executing Partial Tasks in a Distributed Storage and Task Network - A method begins by a dispersed storage (DS) processing module receiving a partial task regarding an encoded data block grouping. The method continues with the DS processing module performing the partial task on the encoded data block grouping to produce a partial task result and determining subsequent treatment of the partial task result. When the subsequent treatment includes storage of the partial task result, the method continues with the DS processing module determining a manner in which the partial task result is to be stored. When the manner in which the partial task result is to be stored is dispersed storage, the method continues with the DS processing module dispersed storage error encoding the partial task result to produce one or more sets of encoded partial task result blocks and outputting the one or more sets of encoded partial task result blocks to a set of DST execution units. | 06-13-2013 |
20130151928 | Transforming Data in a Distributed Storage and Task Network - A method begins by a dispersed storage (DS) processing module determining whether at least a portion of temporarily stored data is to be stored long-term, wherein the temporarily stored data is stored in a set of distributed storage and task (DST) units in accordance with a computational-orientated dispersed storage error coding function. When the at least a portion of the temporarily stored data is to be stored long-term, the method continues with the DS processing module identifying one or more DST storing the at least a portion of the temporarily stored data, recovering the at least a portion of the temporarily stored data, dispersed storage error encoding the at least a portion of the temporarily stored data in a pre-dispersed storage error encoded format into a plurality of sets of encoded data slices, and storing the plurality of sets of encoded data slices in the set of DST units. | 06-13-2013 |
20130198588 | IDENTIFYING A POTENTIALLY COMPROMISED ENCODED DATA SLICE - A method begins by a dispersed storage (DS) processing module selecting a data segment and verifying integrity values of encoded data slices generated by encoding the data segment. When integrity values of a decode threshold number of encoded data slices are affirmatively verified, the method continues with the DS processing module verifying an integrity value of the data segment. When the integrity value of the data segment is affirmatively verified, the method continues with the DS processing module generating a new set of encoded data slices. The method continues with the DS processing module verifying concurrency of the set of encoded data slices with the new set of encoded data slices and for each encoded data slice having a negative concurrency verification, flagging the encoded data slice as being potentially compromised. | 08-01-2013 |
20140019579 | TRANSFERRING DATA OF A DISPERSED STORAGE NETWORK - A method begins by a dispersed storage (DS) processing detecting unavailability of a storage device of a site of dispersed storage network (DSN) memory to produce an unavailable storage device. The method continues with the DS processing module reassigning a fraction of a logical address sub-range of the unavailable storage device to one or more other storage devices, rebuilding one or more logically addressable data objects to produce one or more rebuilt data objects and storing the one or more rebuilt data objects in the one or more other storage devices. When the unavailable storage device becomes available, the method continues with the DS processing module reallocating the fraction of the logical address sub-range from the one or more other storage devices to the storage device and transferring the one or more rebuilt data objects from the one or more other storage devices to the storage device. | 01-16-2014 |
20140122636 | BALANCING STORAGE NODE UTILIZATION OF A DISPERSED STORAGE NETWORK - A method begins by a dispersed storage (DS) processing module determining memory space utilization state of logical storage nodes of a dispersed storage network DSN. When a logical storage node is in an over-utilized memory space utilization state and another logical storage node is in an under-utilized memory space utilization state, the method continues with the DS processing module selecting the other logical storage node to produce a selected logical storage node and reassigning a portion of a DSN address range assigned to the selected logical storage node to a logical storage node that is in an average memory space utilization state to create an address free logical storage node. The method continues with the DS processing module reassigning address blocks assigned to the logical storage node that is in the over-utilized memory space utilization state to the address free logical storage node. | 05-01-2014 |
20140126585 | DISPERSED STORAGE NETWORK FRAME PROTOCOL HEADER - A method to generate a protocol header of a dispersed storage network (DSN) frame begins by a processing module generating a protocol class field and generating a protocol class version field. The method continues with the processing module generating an operation code (opcode) field and generating a request/response field. The method continues with the processing module generating a request number field and generating a payload length field. The method continues with the processing module outputting, in order, the protocol class field, the protocol class version field, the opcode field, the request/response field, the request number field, and the payload length field. | 05-08-2014 |
20140161142 | INTERMEDIATE WRITE OPERATION DISPERSED STORAGE NETWORK FRAME - A method begins by generating write requests, wherein a write request includes a payload and a protocol header. The payload includes one or more slice payload sections and a transaction number field. The protocol header includes an operation code field that indicates a write operation. The method continues, when responses to the write requests are favorable, by generating write commit requests, wherein a write commit request includes a commit payload and a commit protocol header. The commit payload includes the transaction number and the commit protocol header includes the operation code field that indicates write commit operation. The method continues, when responses to the write requests are unfavorable, by generating write rollback requests, wherein a rollback request includes a rollback payload and a rollback protocol header. The rollback payload includes the transaction number and the rollback protocol header includes the operation code field that indicates write rollback operation. | 06-12-2014 |
20140164551 | ENCODED DATA SLICE CACHING IN A DISTRIBUTED STORAGE NETWORK - A method begins by receiving a request to retrieve a data segment stored as encoded data slices in a distributed storage network (DSN). The method continues by determining whether at least the threshold number of encoded data slices is cached in temporary storage associated with a distributed storage processing module. When the at least the threshold number of encoded data slices are cached in the temporary storage, the method continues by retrieving the at least the threshold number of encoded data slices from the temporary storage. When the at least the threshold number of encoded data slices is not cached in the temporary storage, the method continues by retrieving one or more of the encoded data slices from the DSN to obtain the at least the threshold number of encoded data slices. | 06-12-2014 |
20140207898 | WRITE OPERATION DISPERSED STORAGE NETWORK FRAME - A method begins by generating a set of write request frames regarding a write request operation for a set of encoded data. Each of the write request frames includes a payload section and a protocol header. The payload section includes a transaction number field and a data payload section, which includes a name field, a revision number field, a length field, and a payload field. The protocol header includes a payload length field and an operation code field to indicate the write request operation. The method continues by outputting the set of write request frames to storage units of a dispersed storage network. | 07-24-2014 |
20140281815 | Dispersed storage network file system directory - A dispersed storage device manages a file system directory of a dispersed storage network by receiving a data object to be stored and a user file name of the data object, calculating a data compression function of the data object, creating a file identifier based on a result of the data compression function, creating a source name for the data object using the file identifier and linking the user file name to the source name in the file system directory. | 09-18-2014 |
20140297776 | EFFICIENT STORAGE OF DATA IN A DISPERSED STORAGE NETWORK - A method begins by a dispersed storage (DS) processing module receiving data for storage and generating a dispersed storage network (DSN) source name for the data. The method continues with the DS processing module determining whether substantially identical data to the data has been previously stored in memory of the DSN. When the substantially identical data has been previously stored in the memory of the DSN, the method continues with the DS processing module generating an object linking file that links the data to the substantially identical data, dispersed storage error encoding the object linking file to produce a set of encoded link file slices, and outputting the set of encoded link file slices for storage in the memory of the DSN. | 10-02-2014 |
20140298061 | POWER CONTROL IN A DISPERSED STORAGE NETWORK - A method begins by a dispersed storage (DS) processing module of a dispersed storage network (DSN) receiving a plurality of data access requests regarding a plurality of data objects. As individual data access requests of the plurality of data access requests are received, the method continues with the DS processing module, for each of the individual data access requests identifying a corresponding one of a plurality of logical storage pools of the DSN and determining power based access status of the corresponding one of the plurality of logical storage pools. When the power based access status is power saving mode, the method continues with the DS processing module queuing the individual data access request. When the power based access status is not in the power saving mode, the method continues with the DS processing module executing the individual data access request. | 10-02-2014 |
20140301410 | LIST RANGE OPERATION DISPERSED STORAGE NETWORK FRAME - A method begins by generating list range requests. A list range request includes a payload section and a protocol header section. The payload section includes a start slice name field regarding a start slice name of a slice name range; an end slice name field regarding an end slice name of the slice name range; and a maximum response count field regarding a maximum slice name response count. The protocol header includes a payload length field that represents a length of the payload section and an operation code field to indicate the list range request operation. The list range request includes a request to provide a list of slices names corresponding to stored encoded data slices associated with slice names within the slice name range. The method continues by sending the range requests to storage units of the DSN. | 10-09-2014 |
20140304486 | MIGRATING ENCODED DATA SLICES FROM A RE-PROVISIONED MEMORY DEVICE OF A DISPERSED STORAGE NETWORK MEMORY - A method begins by maintaining a memory assignment table for memory devices within the storage unit. The memory assignment table includes a field for memory identifier, a field for memory allocation, and a field for memory usability status. The method continues by utilizing the memory assignment table to perform one or more functions. One function includes selecting a first memory device to store incoming data. Another function includes determining when to decommission a second memory device based on memory usability status of the second memory device. A further function includes determining when to migrate data stored on a third memory device to another memory device. A still further function includes changing a storage protocol of data stored on a fourth memory device. | 10-09-2014 |
20140310492 | DISPERSED STORAGE NETWORK WITH METADATA GENERATION AND METHODS FOR USE THEREWITH - A method begins with a processing module selecting one of a plurality of dispersed storage (DS) processing modules for facilitating access to a dispersed storage network (DSN) memory. The method continues with the processing module sending a DSN memory access request to the one of the plurality of DS processing modules. The method continues with the processing module selecting another one of the plurality of DS processing modules when no response is received within a given time frame or when the response to the access request does not include an access indication. The method continues with the processing module sending the DSN memory access request to the another one of the plurality of DS processing modules. | 10-16-2014 |
20140325305 | CACHE FOR FILE-BASED DISPERSED STORAGE - A method obtains at least part of a file from a dispersed storage network (DSN) memory, and stores it in a data object cache. When the file is changed, a determination is made about where to store the changed file portions: in the data object cache or in the DSN. The changed file portions, for example a new copy of the part of the file obtained from the DSN, are encoded utilizing an error coding dispersal storage function, and stored in either the data object cache, or in the DSN memory. | 10-30-2014 |
20140330921 | STORING RELATED DATA IN A DISPERSED STORAGE NETWORK - A method begins by each of a group of write requesting modules of a dispersed storage network (DSN) generating one or more sets of write requests regarding one of a group of portions of related data, sending a group of the one or more sets of write requests to DSN memory, and sending binding information to a binding module. The method continues with the binding module processing remaining phases of the group of the one or more sets of write requests for writing the related data into the DSN memory as a single set of write requests and notifying the write requesting modules of status of the writing the related data into the DSN memory at completion of the processing of the remaining phases such that the related data is made accessible as a single piece of data when the processing of the remaining phases is successful. | 11-06-2014 |
20140337661 | COOPERATIVE STORAGE SYSTEM UTILIZING DISPERSED STORAGE - A user device sends a data file, which has already been divided into multiple different data portions, to be stored in a dispersed storage network (DSN). The DSN includes multiple dispersed storage (DS) processing units, which in turn are each used to manage multiple DSN memories. Portion affiliation information, which can be stored in a data structure maintained by a DS managing unit, is used to determine particular DS processing units will handle storage and retrieval of particular data portions. The data portions are encoded by the assigned DS processing unit into at least a write threshold number of encoded slices, and stored in the DSN memories in accordance with the portion affiliation information. | 11-13-2014 |
20140344284 | COMMAND LINE INTERPRETER FOR ACCESSING A DATA OBJECT STORED IN A DISTRIBUTED STORAGE NETWORK - A user device includes a DSN interface operably coupled with a DSN memory and a DS processing module for storing and retrieving a data object from the DSN memory, wherein the data object is partitioned into a plurality of data segments and wherein each of the plurality of data segments is stored in the DSN memory as a plurality of encoded data slices that are generated based on an error encoding dispersal function. The user device also includes a command line interpreter operable to interpret a file command as a request to display the data object by an application program, determine the data object is stored in the DSN memory and request the DSN processing module to retrieve the data object from the DSN memory and provide the data object to the application program. | 11-20-2014 |
20140351528 | BALANCING STORAGE UNIT UTILIZATION WITHIN A DISPERSED STORAGE NETWORK - A method begins by a processing module determining to move a range of encoded data slices from a first storage unit to a second storage unit of a plurality of storage units, where data objects are dispersed storage error encoded to produce pluralities of sets of encoded data slices, and where the pluralities of sets of encoded data slices are stored in the plurality of storage units. The method continues with the processing module transferring the range of encoded data slices from the first storage unit to the second storage unit. In response to the transferring the range of encoded data slices from the first storage unit to the second storage unit, the method continues with the processing module transferring a corresponding range of second encoded data slices from a third storage unit to a fourth storage unit. | 11-27-2014 |
20140359348 | ADJUSTING DISPERSED STORAGE NETWORK TRAFFIC DUE TO REBUILDING - A method begins by a dispersed storage (DS) processing module of a dispersed storage network (DSN) monitoring network traffic within the DSN. When the network traffic compares unfavorably to a desired network traffic function, the method continues with the DS processing module reducing a portion of the network traffic due to rebuilding flagged encoded data slices by at least one of changing rebuilding criteria for the flagged encoded data slices and changing rebuilding network traffic protocols. | 12-04-2014 |
20140380064 | DELETING ENCODED DATA SLICES IN A DISPERSED STORAGE NETWORK - A method begins by a dispersed storage (DS) processing module receiving a request regarding at least a portion of corresponding encoded data slices, wherein a collection of encrypted and encoded data slices of a plurality of collections of encrypted and encoded data slices includes a common data aspect, wherein encrypted and encoded data slices of the collection of encrypted and encoded data slices are produced by individually encrypting corresponding encoded data slices using a common encrypting character string and representations of the corresponding encoded data slices. The method continues with the DS processing module identifying the common encrypting character string of the corresponding encoded data slices. When the request is to delete the corresponding encoded data slices, the method continues with the DS processing module obfuscating the common encrypting character string in a local memory such that the collection of encrypted and encoded data slices are effectively incomprehensible. | 12-25-2014 |
20150039969 | STORING DATA IN A DIRECTORY-LESS DISPERSED STORAGE NETWORK - A method begins by a dispersed storage (DS) processing module of a dispersed storage network (DSN) sending a plurality of sets of encoded data slices to DSN memory for storage in accordance with a plurality of sets of DSN data addresses. The method continues with the DS processing module generating retrieval data that is based on a data object number and data storage information. The method continues with the DS processing module dispersed storage error encoding the retrieval data to produce a set of encoded retrieval data slices and generating a set of DSN retrieval data addresses based on the data name and on retrieval data storage information. The method continues with the DS processing module sending the set of encoded retrieval data slices to the DSN memory for storage in accordance with the set of DSN retrieval data addresses. | 02-05-2015 |
20150067295 | STORAGE POOLS FOR A DISPERSED STORAGE NETWORK - A method begins by a dispersed storage (DS) processing module selecting storage pools within the DSN with available capacity for storing data of a storage group. The method continues by selecting one or more dispersed storage (DS) units within each of the selected storage pools based on a selection criteria and mapping the one or more DS units to the storage group. The method continues by receiving a write request to store a data object to the storage group and by storing the data object in at least one of the mapped one or more DS units. The method continues with the DS processing module issuing an indication unutilized storage space calculated on a proportionate basis based on storage utilized for the storage group as a percentage of total storage utilized and updating a write proportion value based on received storage utilization responses. | 03-05-2015 |