US6012085A — Apparatus and method for increased data access in…

Claim 1

Independent Claim 200 words

An apparatus for increased data access from data of the type including at least one of a file, an object and a directory in a file/object oriented network, which comprises: a file/object server computer having an operating system, a first memory, a permanent storage memory and a processor; a cache verifying computer operably connected to said file/object server computer in a manner to form a network for rapidly transferring data, said cache verifying computer having an operating system, a first memory and a processor with means for performing an operation on data stored in said permanent storage memory of said file server computer to produce a signature of said data; a remote client computer having an operating system, a first memory, a cache memory and a processor with means for performing an operation on data stored in said cache memory to produce a signature of said data; a communication server operably connecting to said remote client computer to said cache verifying computer and said file/object server computer; and a first comparator operably associated with said cache verifying computer for comparing said signatures of data with one another to determine whether said signature of data of said remote client is valid.

Claim 2

Independent Claim 200 words

An apparatus for increased data access from data of the type including at least one of a file, an object and a directory in a file/object oriented network, which comprises: a file/object server computer having an operating system, a first memory, a permanent storage memory and a processor; a cache verifying computer operably connected to said file/object server computer in a manner to form a network for rapidly transferring data, said cache verifying computer having an operating system, a first memory and a processor with means for performing an operation on data stored in said permanent storage memory of said file server computer to produce a signature of said data; a remote client computer having an operating system, a first memory, a cache memory and a processor with means for performing an operation on data stored in said cache memory to produce a signature of said data; a communication server operably connecting to said remote client computer to said cache verifying computer and said file/object server computer; and a first comparator operably associated with said cache verifying computer for comparing said signatures of data with one another to determine whether said signature of data of said remote client is valid.

Claim 3

Dependent Claim 42 words

The invention in accordance with claim 1, which includes a second comparator operably associated with said remote client computer for comparing said signatures of said data with one another to determine whether said signature of data of said remote client is valid.

Claim 4

Dependent Claim 41 words

The invention in accordance with claim 1, which further includes means operably associated with said remote client computer for filtering said data in a manner to preclude predetermined data from being manipulated from said cache memory of said remote client computer.

Claim 5

Dependent Claim 39 words

The invention in accordance with claim 1, which further includes means operably associated with said remote client computer for evaluating said object for presence in said cache memory of said remote client computer and determining said object as valid.

Claim 6

Dependent Claim 29 words

The invention in accordance with claim 1, which further includes means operably associated with said remote client computer and said cache verifying computer for replicating and synchronizing said data.

Claim 7

Dependent Claim 25 words

The invention in accordance with claim 5, which further includes means operably associated with said replicating and synchronizing means for compressing and decompressing said data.

Claim 8

Dependent Claim 59 words

The invention in accordance with claim 1, wherein said network file/object cacher includes means responsive to each said comparison performed by each said comparator on said data for generating and storing a validation ratio for said data in a third memory and for removing said data from said cache memory when said validation ratio drops below a predetermined value.

Claim 9

Dependent Claim 34 words

The invention in accordance with claim 7, wherein said storing and removing means is further defined to preclude said data having a validation ration less than said predetermined value from reentering said cache memory.

Claim 10

Dependent Claim 42 words

The invention according to claim 1, wherein said cache verifying computer includes means for recognizing a LOCK request from said remote client computer and for obtaining a lock on said data from said file server computer in response to said LOCK request.

Claim 11

Dependent Claim 42 words

The invention in accordance with claim 9, wherein said LOCK recognizing means is further defined as a proxy for said remote client computer for allowing one of a subsequent READ/WRITE request and GET-OBJECT request to occur on behalf of said remote client.

Claim 12

Dependent Claim 95 words

The invention in accordance with claim 1, wherein said first memory of said remote client computer is disposed in a RAM of said remote client computer, said first memory of said cache verifying computer is disposed in a RAM of said cache verifying computer, said first memory of said file/object server computer is disposed in a RAM of said file/object server computer and said permanent storage memory is disposed on a permanent storage disk of said file/object server computer and said cache memory is disposed on a permanent storage disk of said remote client computer.

Claim 13

Dependent Claim 19 words

The invention in accordance with claim 1, wherein said cache verifying computer has said communications server integrally formed therewith.

Claim 14

Independent Claim 269 words

A method, performed by computers in a file/object oriented network for increased speed of access of data, which comprises: using a file/object server computer having an operating system, a first memory, a permanent storage memory and a processor; using a cache verifying computer operably connected to said file/object server computer in a manner to form a network for rapidly transferring data, said cache verifying computer having an operating system, a first memory and a processor; using a remote client computer having an operating system, a first memory, a cache memory and a processor; using a communication server operably connected to said remote client computer to said cache verifying computer and said file/object server computer; establishing a processor element in said cache verifying computer which recognizes at least one of a READ REQUEST, a GET-OBJECT REQUEST and a DIRECTORY REQUEST by said remote client computer and obtains said data from said file/object server computer associated with one of a file, an object and a directory and generates a signature of said data associated with of one of said file, said object and said directory; establishing a processor element on said remote client computer which initiates upon one of a READ REQUEST, a GET-OBJECT REQUEST and a DIRECTORY REQUEST from the cache memory to generate a signature of said data associated with of one of said file, said object and said directory; using a first comparator operably associated with said cache verifying computer for comparing said signatures of data of said file with one another to determine whether said signature of data of the file of said remote client is valid.

Claim 15

Independent Claim 269 words

A method, performed by computers in a file/object oriented network for increased speed of access of data, which comprises: using a file/object server computer having an operating system, a first memory, a permanent storage memory and a processor; using a cache verifying computer operably connected to said file/object server computer in a manner to form a network for rapidly transferring data, said cache verifying computer having an operating system, a first memory and a processor; using a remote client computer having an operating system, a first memory, a cache memory and a processor; using a communication server operably connected to said remote client computer to said cache verifying computer and said file/object server computer; establishing a processor element in said cache verifying computer which recognizes at least one of a READ REQUEST, a GET-OBJECT REQUEST and a DIRECTORY REQUEST by said remote client computer and obtains said data from said file/object server computer associated with one of a file, an object and a directory and generates a signature of said data associated with of one of said file, said object and said directory; establishing a processor element on said remote client computer which initiates upon one of a READ REQUEST, a GET-OBJECT REQUEST and a DIRECTORY REQUEST from the cache memory to generate a signature of said data associated with of one of said file, said object and said directory; using a first comparator operably associated with said cache verifying computer for comparing said signatures of data of said file with one another to determine whether said signature of data of the file of said remote client is valid.

Claim 16

Dependent Claim 55 words

The method of the invention in accordance with claim 13, which further includes the steps of using a second comparator operably associated with said remote client computer for comparing said signatures of data of said directory with one another to determine whether said signature of data of said directory of said remote client is valid.

Claim 17

Dependent Claim 55 words

The method of the invention in accordance with claim 13, which further includes the steps of using a third comparator operably associated with said remote client computer for comparing said signatures of data of said object with one another to determine whether said signature of data of said object of said remote client is valid.

Claim 18

Dependent Claim 70 words

The method of the invention in accordance with claim 13, which further includes the steps of: establishing in said remote client computer a processor element responsive to each comparison of said signature data; generating a validation ratio for said data; storing said validation ratio in a third memory of said remote client computer; and removing said data from said cache memory when said validation ratio drops below a predetermined value.

Claim 19

Dependent Claim 28 words

The method of the invention in accordance with claim 16, wherein the step of removing is further characterized to induce preventing said data from reentering said cache memory.

Claim 20

Dependent Claim 54 words

The method of the invention in accordance with claim 13, which further includes the steps of: establishing in said cache verifying computer a processor element responsive to each said LOCK request from said remote client computer; and obtaining a lock on said data from said file/object server computer in response to said LOCK request.

Claim 21

Dependent Claim 47 words

The method of the invention in accordance with claim 18, which further includes the steps of establishing in said verifying computer a processor element responsive to each said READ/WRITE request from said remote client computer, and performing said READ/WRITE request on behalf of said remote client computer.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	2003-01-03	2003-07-05	2004-01-04	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2007-01-03	2007-07-05	2008-01-04	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2011-01-03	2011-07-05	2012-01-04	$7700.00	Window Closed / Lapsed

Apparatus and method for increased data access in a network file object oriented caching system

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