Steven R Frank

US Patent:

6148377, Nov 14, 2000

Filed:

Nov 22, 1996

Appl. No.:

8/754481

Inventors:

John B. Carter - Salt Lake City UT
Scott H. Davis - Groton MA
William Abraham - Windham NH
Steven J. Frank - Hopkinton MA
Thomas G. Hansen - Leominster MA
Robert S. Phillips - Brookfield MA
Daniel J. Dietterich - Acton MA
David Porter - Littleton MA

Assignee:

Mangosoft Corporation - Westborough MA

International Classification:

G06F 1208

US Classification:

711147

Abstract:

Distributed shared memory systems and processes that can connect into each node of a computer network to encapsulate the memory management operations of the connected nodes and to provide thereby an abstraction of a shared virtual memory that can span across each node of the network and that optionally spans across each memory device connected to the computer network. Accordingly, each node on the network having the distributed shared memory system of the invention can access the shared memory.

US Patent:

59875062, Nov 16, 1999

Filed:

May 2, 1997

Appl. No.:

8/850364

Inventors:

John B. Carter - Salt Lake City UT
Scott H. Davis - Groton MA
Steven J. Frank - Hopkinton MA

Assignee:

Mangosoft Corporation - Westborough MA

International Classification:

G06F 1516

US Classification:

709213

Abstract:

A computer system employs a globally addressable storage environment that allows a plurality of networked computers to access data by addressing even when the data is stored on a persistent storage device such as a computer hard disk and other traditionally non-addressable data storage devices. The computers can be located on a single computer network or on a plurality of interconnected computer networks such as two local area networks (LANs) coupled by a wide area network (WAN). The globally addressable storage environment allows data to be accessed and shared by and among the various computers on the plurality of networks.

US Patent:

59095407, Jun 1, 1999

Filed:

May 2, 1997

Appl. No.:

8/848967

Inventors:

John B. Carter - Salt Lake City UT
Scott H. Davis - Groton MA
Daniel J. Dietterich - Acton MA
Steven J. Frank - Hopkinton MA
Robert S. Phillips - Brookfield MA
John Woods - Boxborough MA
David Porter - Littleton MA
Hsin H. Lee - Acton MA

Assignee:

Mangosoft Corporation - Westborough MA

International Classification:

G06F 1100

US Classification:

39518202

Abstract:

A network of computer node interface to globally addressable memory system that provides persistent storage of data exchange periodic connectivity information. The exchanged connectivity information provides information regarding node failure to other nodes in the system, and the surviving nodes use the information to determine which node, if any, has ceased functioning. Various processes are used to recover the portion of the global address space for which the failed node was responsible, including RAM directory, disk directory, or file system information. Additionally, nodes may be subdivided into groups and connectivity information is exchanged between nodes belonging to a group. Each group then exchanges group-wise connectivity information and failures may be recovered.

US Patent:

60264748, Feb 15, 2000

Filed:

May 2, 1997

Appl. No.:

8/848971

Inventors:

John B. Carter - Salt Lake City UT
Scott H. Davis - Groton MA
Daniel J. Dietterich - Acton MA
Steven J. Frank - Hopkinton MA
Hsin H. Lee - Acton MA

Assignee:

Mangosoft Corporation - Westborough MA

International Classification:

G06F 1200

US Classification:

711202

Abstract:

A shared client-side Web cache is provided by implementing a file system shared between nodes. Each browser application stores cached data in files stored in a globally addressable data store. Since the file system is a shared one, the client-side Web caches are also shared.