Osr Open Systems Resources, Inc.

Other

W Anthony Mason

Scott J Noone

Peter G Viscarola

Mark J Cariddi

Roderick David Wolfe Widdowson

Disclosed are systems and methods for requesting operations at a remote server utilizing a network file system. A client may encapsulate a request for a cache coherency mechanism as an encapsulated message and provide the encapsulated message to a network file system executing on the client. The network file system may be configured to prevent the request for server functionality from being transmitted to the remote server. The client may also cause, via the network file system, the encapsulated message to be transmitted to the remote server.

Methods and systems for data storage

Various embodiments are directed to systems and methods for facilitating file attribute correction. A computer system may receive a request to enumerate a first directory stored on a data storage. For a first file in the first directory, the computer system may determine that the first file has a corresponding first entry in an attribute cache, determine that the first entry for the first file indicates native file attributes that match the first file, and return for the first file at least one logical attribute indicated by the first entry.

File system directory attribute correction

Various embodiments are directed to systems and methods for work queue thread balancing. A global thread pool manager may be configured to receive a request to add a work item to a constituent work queue. The constituent work queue may be described by a work queue thread property. The global thread pool manager may add the work item to the constituent work queue and match the work item to a global thread selected from a global thread pool. The global thread may be configured according to the work queue thread property to generate a configured global thread. The configured global thread may execute the work item.

Work queue thread balancing

Methods for organizing data. The methods may comprise the step of receiving a write request comprising a data unit. The methods may also comprise the steps of organizing the data unit into a sub-file and incorporating the sub-file into a data file according to a log-structured organization system. In addition, the methods may include the step of writing the data file to a data storage according to a second organization system.

Systems and methods for arbitrary data transformations

Methods of managing access to at least one resource in a computer system. The methods may comprise the step of associating access rights with an application resource. The access rights may define a level of access to the resource granted to the application. The methods may also comprise the step of digitally signing the access rights and the application resource. In various embodiments, the associating may comprise incorporating the access rights into a stream of a file including the application resource. Also, in various embodiments, the associating may comprise incorporating the access rights into an extended attribute of a file including the application resource.

Managing access to a resource

Methods of managing application resources in a computer system. The methods may comprise the steps of determining a configuration of the computer system and receiving a request to access an application resource. The methods may also comprise the step of directing the request to a data file. The data file may include a plurality of streams, and each of the plurality of streams may comprise a configuration-specific version of the application resource. In various embodiments, the methods may also comprise the step of directing the request to a first stream of the plurality of streams. The first stream may comprise version of the application resource specific to the configuration. Various system embodiments are also provided.

Managing application resources

Methods of communicating data between a host and a client. The methods may comprise the step of receiving a write request from a client. The write request may comprise first data and first metadata describing a logical position of the first data within a file. The first data may be encrypted to the host. The methods may also comprise the step of writing the first data to a data storage. The first data may be written as a data sub-file of the file. In addition, the methods may comprise the step of writing the first metadata to the data storage. The first metadata may be written as a metadata sub-file of the file.

Log-structured host data storage

Methods of monitoring a computer system. The methods may comprise the steps of calculating a first checksum of a data location and receiving a request from an operation running on the computer system for a lock corresponding to the data location. The methods may also comprise the steps of calculating a second checksum of the data location, and generating an indication if the first checksum and the second checksum are not equivalent. Also, methods of detecting a lock ranking violation in a computer system. The methods may comprise the steps of receiving a request from an operation for a first lock associated with a first data storage location and reviewing a list of locks issued to the operation. The methods may also comprise the step of determining whether the operation possesses a lock ranked higher than the first lock.

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Milford, NH, United States of America

W Anthony Mason