Gregory J Tevis

US Patent:

6952698, Oct 4, 2005

Filed:

Oct 5, 2001

Appl. No.:

09/972271

Inventors:

Brian Augustine Delaire - Fremont CA, US
Douglas Paul Dunham - San Jose CA, US
Nancy Lott Hobbs - Sunnyvale CA, US
Sandy Yuen Hing McDonald - San Jose CA, US
Gregory John Tevis - Tuscon AZ, US
Ophelia K. Yip - San Francisco CA, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F017/30

US Classification:

707 10, 711 6, 711133, 711136, 709223, 709231, 705 44, 710105

Abstract:

The invention provides an improved SAN of type having one or more host digital data processors, coupled to one or more storage devices. At least a selected one of the hosts includes a file system that effects access by the host to assigned storage devices. This can be, by way of non-limiting example, an AIX journal file system, a Veritas file system, a Unix file systems using Veritas volume manager or other host platform file system that oversees file and other data accesses between the host and those assigned devices. In response to a request by (or on behalf of) the selected host for extension of the file system, a manager (e. g. , executing on a further digital data processor) assigns one of more further storage devices to that digital data processor. An agent associated with the first digital data processor that responds to the assignment by extending the file system to include the assigned storage device.

US Patent:

6996670, Feb 7, 2006

Filed:

Oct 5, 2001

Appl. No.:

09/972462

Inventors:

Brian Augustine Delaire - Fremont CA, US
Daniel Graham Douglas - Los Gatos CA, US
Douglas Paul Dunham - San Jose CA, US
Vincent Jomartin Hoang - San Jose CA, US
Nancy Lott Hobbs - Sunnyvale CA, US
Louis Leo Lorber - Santa Clara CA, US
Sandy Yuen Sun Hing McDonald - San Jose CA, US
Gregory John Tevis - Tuscon AZ, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 12/14
G06F 15/173

US Classification:

711114, 709226, 709223, 709224, 711147, 711172

Abstract:

The invention provides a storage area network (SAN) of type having one or more digital data processors coupled to one or more storage devices. At least a selected one of the hosts includes a file system that effects access by the host to assigned storage devices. This can be, for example, a conventional AIX or other host platform file system that oversees file and other data accesses between the host and those assigned devices. That host can be associated, according to these aspects of the invention, with lower and upper capacity bounds for purposes of file system extension. In response to a request by (or on behalf of) the selected digital data processor for extension of the file system, the manager assigns one of more further storage devices to that digital data processor.

US Patent:

7177935, Feb 13, 2007

Filed:

Oct 5, 2001

Appl. No.:

09/972207

Inventors:

Paul Lawrence Bradshaw - Santa Cruz CA, US
Brian Augustine Delaire - Fremont CA, US
Daniel Graham Douglas - Los Gatos CA, US
Douglas Paul Dunham - San Jose CA, US
Tina Lynn Dunton - San Jose CA, US
David Wilson Groves - San Jose CA, US
Vincent Jomartin Hoang - San Jose CA, US
Nancy Lott Hobbs - Sunnyvale CA, US
Louis Leo Lorber - Santa Clara CA, US
Ngoc V. Nguyen - San Jose CA, US
Gregory John Tevis - Tuscon AZ, US
Ophelia K. Yip - San Francisco CA, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 12/00
G06F 13/00
G06F 13/28
G06F 17/30
G06F 15/173

US Classification:

709226, 711171, 711117, 707205

Abstract:

A storage area network (SAN) includes a plurality of digital data processors, each with a file system that effects access to one or more storage devices coupled to the SAN, for example, via an interconnect fabric. A process (e. g. , executing on a manager digital data processor) responds to a file system over-extension notification from at least a selected one of the digital data processors, e. g. , by assigning a further storage device to the selected digital data processor. The type of response is, more particularly, determined in accord with a hierarchically defined policy inherited, in whole or in part, from one or more hierarchical groups of which the digital data processor is a member.

US Patent:

7340579, Mar 4, 2008

Filed:

Nov 12, 2004

Appl. No.:

10/987055

Inventors:

Duane Mark Baldwin - Mantorville MN, US
David Lynn Merbach - Rochester MN, US
Gregory John Tevis - Tucson AZ, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 13/00
G06F 13/28

US Classification:

711173

Abstract:

A method, system, and computer program product for providing enhanced management features for a SAN with scalable hosts. Partitioned hosts (or ‘scalable’ hosts) are managed by extending SAN manager host-centric logical views to show (1) the host partition hierarchy and (2) the storage resource ownership for a SAN-attached scalable host. The extended host-centric view includes the host system, hosting OSes (if applicable), hosted OSes for each hosting OS (or the host system), OS volumes for each hosted OS, and logical mapping of each OS volume to the SAN storage resource (logical unit). The SAN manager is extended to also show how hosting (trusted) partitions, blades, and/or cluster members physically connect into a SAN. Users are able to toggle between a host centric view and a physical topology view by selection of items within the interface.

US Patent:

7398326, Jul 8, 2008

Filed:

Apr 25, 2002

Appl. No.:

10/132656

Inventors:

Duane Mark Baldwin - Mantorville MN, US
David Lynn Merbach - Rochester MN, US
Gregory John Tevis - Tuscon AZ, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 15/16

US Classification:

709249, 709223, 709224, 370254, 370353, 3703955, 37039572, 715734, 715735, 715736

Abstract:

The invention provides improvements on a digital data processing system of the type having a first set of hosts, storage devices or other components coupled for communication with a first network manager. A second set of components is likewise coupled to a second network manager. Communications between the network managers and their respective sets of components utilize different protocols, the first network manager referring to components of the first set with identifiers that are unique to those respective components under the first protocol, and the second network manager referring to components of the second set with identifiers that are unique to those respective components under the second protocol.

US Patent:

7624178, Nov 24, 2009

Filed:

Feb 27, 2006

Appl. No.:

11/363432

Inventors:

Gregory John Tevis - Tucson AZ, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 15/173
G06F 19/00
G06F 15/177

US Classification:

709224, 709223, 709221, 709220, 700108, 700109, 715736, 715734

Abstract:

An apparatus, system, and method are disclosed for dynamically adjusting performance monitoring of storage area network (“SAN”) components. An initial violation module is included to determine that a threshold violation associated with a SAN component is an initial threshold violation. A violation entry module is included to record a component violation entry in response to the initial threshold violation. An entry adjustment module is included to adjust a component violation entry associated with a SAN component in response to a threshold violation related to the SAN component. An analysis module is included to analyze the component violation entry based on analysis criteria. A suspicion adjustment module is included to adjust a suspicion variable associated with the SAN component in response to results of the analysis of the component violation entry.

US Patent:

7680926, Mar 16, 2010

Filed:

Feb 27, 2006

Appl. No.:

11/362975

Inventors:

Gregory John Tevis - Tucson AZ, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 15/173

US Classification:

709224, 709220

Abstract:

An apparatus, system, and method are disclosed for dynamically determining a set of Storage Area Network (SAN) components for performance monitoring. The computer program product monitors SAN components of a predefined set of SAN components according to a monitor data structure associated with each SAN component. At least one attribute of the set of SAN components is changed in response to a threshold violation by a SAN component in the set. The SAN components of the changed set are monitored according to the monitor data structure for each SAN component within the changed set as part of a monitoring feedback loop.

US Patent:

7680991, Mar 16, 2010

Filed:

May 31, 2007

Appl. No.:

11/756018

Inventors:

Frank Arthur Chodacki - Leander TX, US
Gregory John Tevis - Tucson AZ, US
David Gregory Van Hise - Tucson AZ, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 12/00

US Classification:

711154

Abstract:

A system and method for correlated analysis of wasted space and capacity efficiency in complex storage infrastructures are provided. The system and method of the illustrative embodiments bring together wasted space data from all areas and components of the storage infrastructure into a single set of reports correlating information from these various sources in the storage infrastructure. In addition, correlated analysis of this collected information is performed with regard to wasted space. Logical storage devices of the storage infrastructure which are unused by host systems may be identified and appropriate corrective actions may be automatically taken. Moreover, automated recommendations and other automated corrective actions may be taken based upon the correlated analysis of the correlated data collected from the various components of the storage infrastructure.