Abstract: A file system interface receives, from one or more clients, file system operations over a network. In response to receiving a file system operation for a file, a file-object manager calls an object storage interface to store, via an application-level network protocol, a log object indicating the file system operation into a file system log in the object storage system and creates or updates a file object in a file object construction buffer in volatile system memory. To evict the file object, the file-object manager calls the object storage interface to store the file object into a file object store in the object storage system. The file-object manager does not have access to local persistent storage. After power failure, the file-object manager calls the object storage interface to retrieve log objects from the file system log and replays file system operations to restore file objects in the volatile system memory.

Abstract: A file system interface receives, from one or more clients, file system operations over a network. In response to receiving a file system operation for a file, a file-object manager calls an object storage interface to store, via an application-level network protocol, a log object indicating the file system operation into a file system log in the object storage system and creates or updates a file object in a file object construction buffer in volatile system memory. To evict the file object, the file-object manager calls the object storage interface to store the file object into a file object store in the object storage system. The file-object manager does not have access to local persistent storage. After power failure, the file-object manager calls the object storage interface to retrieve log objects from the file system log and replays file system operations to restore file objects in the volatile system memory.

Abstract: A file system interface receives, from one or more clients, file system operations over a network. In response to receiving a file system operation for a file, a file-object manager calls an object storage interface to store, via an application-level network protocol, a log object indicating the file system operation into a file system log in the object storage system and creates or updates a file object in a file object construction buffer in volatile system memory. To evict the file object, the file-object manager calls the object storage interface to store the file object into a file object store in the object storage system. The file-object manager does not have access to local persistent storage. After power failure, the file-object manager calls the object storage interface to retrieve log objects from the file system log and replays file system operations to restore file objects in the volatile system memory.

Abstract: Systems and methods for writing and reading digital information to and from tracks on a platter side of an electromagnetic disk drive system are disclosed. Embodiments of the present invention provide a plurality of read elements and write elements in fixed positions, with respect to tracks of a magnetic disk of the electromagnetic disk drive system. There is a one-to-one correspondence between read and write elements and tracks. As a result, many tracks may be written to and/or read from simultaneously on a single platter side of the magnetic disk, providing increased data access rates.

Abstract: This invention relates to systems and methods that allow data to be recorded from communication devices as messages for later viewing through the transmission of audio and digital data streams over a distributed communications network. The invention relates to a method for transmitting a message from a calling device to a remote video mail server and for retrieving the message at a later time over a distributed network including connecting the calling device to the remote video mail server; supplying the message from the calling device to the remote video mail server; storing the message on the remote video mail server; and accessing the message by a communication device from the remote video mail server at a later time.