Abstract: One example method includes, in a data buffer that includes one or more words and whitespaces, calculating a hash value of data in a window that is movable within the data buffer, comparing the hash value to a mask, and when the hash value matches the mask, identifying a position of the window in the data buffer as a chunk anchor position, searching for a whitespace nearest the chunk anchor position, and designating an offset of the whitespace as a segment boundary.

Abstract: One example method includes, in a data buffer that includes one or more words and whitespaces, calculating a hash value of data in a window that is movable within the data buffer, comparing the hash value to a mask, and when the hash value matches the mask, identifying a position of the window in the data buffer as a chunk anchor position, searching for a whitespace nearest the chunk anchor position, and designating an offset of the whitespace as a segment boundary.

Abstract: Efficient data transfer is disclosed. A server provides an endpoint for a client. The client can communicate with a cloud storage system through the server rather than connect directly to the cloud storage system. The server is configured to perform requests in a manner that reduces the amount of data transferred to and from the cloud storage system.

Abstract: A method includes receiving an object from a client as part of a data ingestion process, directing the object to an object access microservice, providing a copy of the object to a masker worker microservice, masking the copy of the object to create a masked object, and the masking of the copy of the object is performed inline prior to storage of the object, deduplicating the object, and storing the masked object and the object in storage.

Abstract: A method includes retrieving an object from storage and copying the object, generating a list that identifies one or more byte ranges, of the copy of the object, to be masked, providing the list to a masker controller microservice that examines a recipe corresponding to the copy of the object, where the recipe references a slice of the copy of the object, and the slice includes one or more data segments, masking, by the masker controller microservice, a segment of the slice that is in one of the byte ranges, to create a masked segment, and replacing, in the slice, the segment with the masked segment, to create a masked slice and creating a masked object recipe that contains a reference to the masked slice, creating a masked object that includes the masked slice, and that references any unmasked segments of the slice, and deduplicating the masked object.

Abstract: Systems and methods for determining an access pattern in a computing system. Accesses to a file may contain random accesses and sequential accesses. The file may be divided into multiple regions and the accesses to each region are tracked. The access pattern for each region can then be determined independently of the access patterns of other regions of the file.

Abstract: One example method includes receiving data, partitioning the data according to their respective similarity groups, and the similarity groups collectively define a range of similarity groups, deduplicating the data after the partitioning, packing unique data segments remaining after deduplicating into one or more compression regions, compressing the compression regions, and writing an object, that includes the compression regions, to a durable log. The deduplicating and compressing for a similarity group may be performed by a dedup-compression instances uniquely assigned to that similarity group.

Abstract: One example method includes, in a data buffer that includes one or more words and whitespaces, calculating a hash value of data in a window that is movable within the data buffer, comparing the hash value to a mask, and when the hash value matches the mask, identifying a position of the window in the data buffer as a chunk anchor position, searching for a whitespace nearest the chunk anchor position, and designating an offset of the whitespace as a segment boundary.

Abstract: A method includes receiving an object from a client as part of a data ingestion process, directing the object to an object access microservice, providing a copy of the object to a masker worker microservice, masking the copy of the object to create a masked object, and the masking of the copy of the object is performed inline prior to storage of the object, deduplicating the object, and storing the masked object and the object in storage.

Abstract: A method includes retrieving an object from storage and copying the object, generating a list that identifies one or more byte ranges, of the copy of the object, to be masked, providing the list to a masker controller microservice that examines a recipe corresponding to the copy of the object, where the recipe references a slice of the copy of the object, and the slice includes one or more data segments, masking, by the masker controller microservice, a segment of the slice that is in one of the byte ranges, to create a masked segment, and replacing, in the slice, the segment with the masked segment, to create a masked slice and creating a masked object recipe that contains a reference to the masked slice, creating a masked object that includes the masked slice, and that references any unmasked segments of the slice, and deduplicating the masked object.

Abstract: A method includes receiving an object from a client as part of a data ingestion process, directing the object to an object access microservice, providing a copy of the object to a masker worker microservice, masking the copy of the object to create a masked object, and the masking of the copy of the object is performed inline prior to storage of the object, deduplicating the object, and storing the masked object and the object in storage.

Abstract: A method includes retrieving an object from storage and copying the object, generating a list that identifies one or more byte ranges, of the copy of the object, to be masked, providing the list to a masker controller microservice that examines a recipe corresponding to the copy of the object, where the recipe references a slice of the copy of the object, and the slice includes one or more data segments, masking, by the masker controller microservice, a segment of the slice that is in one of the byte ranges, to create a masked segment, and replacing, in the slice, the segment with the masked segment, to create a masked slice and creating a masked object recipe that contains a reference to the masked slice, creating a masked object that includes the masked slice, and that references any unmasked segments of the slice, and deduplicating the masked object.

Abstract: A method includes retrieving, with a masker controller job, an object and an associated object ID from a masking bucket that is defined in storage, making a copy of the object, with a masker worker microservice, masking the copy of the object to create a masked object, transmitting the masked object to an object access microservice, with the object access microservice, transmitting the masked object to a deduplication microservice, with the deduplication microservice, deduplicating the masked object, and storing the masked object in the storage.

Abstract: Systems and methods for managing content in a flash memory. A locking data structure is used to control access to data structures and the locking data structure is implemented in flash memory. The locking data structure is updated by overwriting the data such that the associated data structure is identified as locked or unlocked.

Abstract: A method includes retrieving, with a masker controller job, an object and an associated object ID from a masking bucket that is defined in storage, making a copy of the object, with a masker worker microservice, masking the copy of the object to create a masked object, transmitting the masked object to an object access microservice, with the object access microservice, transmitting the masked object to a deduplication microservice, with the deduplication microservice, deduplicating the masked object, and storing the masked object in the storage.

Abstract: Systems and methods for managing content in a flash memory. Systems and methods for implementing hash tables in a flash memory are disclosed. A hash table may include a flat array or an array of buckets that are each associated with a linked list. Adding or removing entries from the hash table or from the linked list are achieved by performing an overwrite operation where possible to pointers affected by the table operation.

Abstract: Systems and methods for recovering corrupted data or missing data from a cache are provided. When a data corruption is discovered in a storage system, the cache may be searched to determine if a valid copy of the corrupted data can be recovered from the cache.

Abstract: Systems and methods for reducing input/output operations in a computing system that uses a cache. Input/output operations associated with cache index lookups are reduced by tracking the location of the requested data such that the data can be invalidated without having to access the cache index. Input/output operations can be reduced by invalidating the entry in the cache index when reading the corresponding data.

Abstract: A method includes retrieving, with a masker controller job, an object and an associated object ID from a masking bucket that is defined in storage, making a copy of the object, with a masker worker microservice, masking the copy of the object to create a masked object, transmitting the masked object to an object access microservice, with the object access microservice, transmitting the masked object to a deduplication microservice, with the deduplication microservice, deduplicating the masked object, and storing the masked object in the storage.

Abstract: A method includes receiving an object from a client as part of a data ingestion process, directing the object to an object access microservice, providing a copy of the object to a masker worker microservice, masking the copy of the object to create a masked object, and the masking of the copy of the object is performed inline prior to storage of the object, deduplicating the object, and storing the masked object and the object in storage.