KIRK HANSON
Architects at Pajaro Way, Pearl, ID
License number
Alaska AELN12126
Issued Date
Nov 25, 2008
Effective Date
Nov 12, 2015
Expiration Date
Dec 31, 2017
Category
Architects, Engineers and Land Surveyors
Address
Address
2889 S Pajaro Way S. PAJARO WAY, Pearl, ID 83616
Personal information
See more information about KIRK HANSON at radaris.comName
Address
Phone
2889 S Pajaro Way, Eagle, ID 83616
1505 S Kimball Ave, Caldwell, ID 83605
105 River Trail Dr, Eagle, ID 83616
Professional information
Log Record Parsing For A Distributed Log On A Disk Array Data Storage System
US Patent:
6553509, Apr 22, 2003
Filed:
Jul 28, 1999
Appl. No.:
09/363917
Inventors:
Kirk A. Hanson - Eagle ID
Douglas L. Voigt - Boise ID
Don L. Burkes - Meridian ID
Douglas L. Voigt - Boise ID
Don L. Burkes - Meridian ID
Assignee:
Hewlett Packard Development Company, L.P. - Houston TX
International Classification:
H02H 305
US Classification:
714 5, 714 20
Abstract:
A storage system maintains a log image consisting of log records kept in a page log and log records kept in a distributed log kept in staging buffers of multiple storage media. The distributed log contains incremental log records that are occasionally forced to the storage media prior to filling an entire page of log records. The storage system has a log recovery manager that recovers the log image following a failure. The log recovery manager first reads the log records from the page log to reproduce a majority of the log image. The log recovery manager then scans the distributed log to locate any more recent log records that may exist. Once a more recent log record is found, the log recovery manager adds it to the recaptured log image and proceeds to find even more recent log records. To speed the recovery, the log recovery manager intelligently begins the search for the next incremental log record at a location in the storage system that the next log record is likely to reside. The log recovery manager begins looking for the next log record using three criteria: (1) it looks on the same storage medium that contains the previous log record just found; (2) it looks in the other staging buffer on the storage medium; and (3) it begins at an offset equal to the length of the previous log record just found.
Forced Transaction Log Posting Using A Least Busy Storage Media Without Maintaining Redundancy Of The Transaction Log
US Patent:
6055604, Apr 25, 2000
Filed:
Aug 26, 1997
Appl. No.:
8/920120
Inventors:
Douglas L. Voigt - Boise ID
Don L. Burkes - Meridian ID
Kirk A. Hanson - Eagle ID
Don L. Burkes - Meridian ID
Kirk A. Hanson - Eagle ID
Assignee:
Hewlett-Packard Company - Palo Alto CA
International Classification:
G06F 1208
US Classification:
711117
Abstract:
A transaction log stored in a first memory is posted to one of two separate log areas, selectively, on a storage system having a plurality of storage media such as disk drives. Posting occurs to a "disk log" area when a page-full status of the first memory transaction log is detected. Alternatively, when a posting request occurs before a page-full status of the transaction log has been detected, then posting occurs immediately to a least busy disk of a "staging log" area. Posting occurs to the least busy disk of the "staging log" area by circumventing normal storage system data management and redundancy techniques such that data in the staging log area is not kept redundantly on the storage media. Rather redundancy is maintained by the fact that the transaction log remains with the first memory in addition to being copied to the staging log area. The staging log area includes reserved space on each of the plurality of storage media and is divided into logically separate portions on each of the storage media.