Mark A Peloquin

US Patent:

6449705, Sep 10, 2002

Filed:

Sep 9, 1999

Appl. No.:

09/392832

Inventors:

Mark A. Peloquin - Austin TX
Benedict Michael Rafanello - Round Rock TX
John Cameron Stiles - Round Rock TX

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 1300

US Classification:

711173, 711153, 711209, 711216

Abstract:

A method for routing an input/output request for a particular logical volume. In a preferred embodiment, partitions are assigned to logical volumes, wherein an arbitrary number of partitions can be assigned to a logical volume and the partitions can be of an arbitrary size. Each logical volume is divided into a plurality of zones, wherein the zones for a particular logical volume are substantially equal in size. A zone table is created whose entries contain data about one or two partitions that correspond to that zone. Responsive to receiving an input/output request directed to a logical volume, the zone table entries for a first and a last sector listed in the input/output request are used to determine to which partitions in the logical volume the input/output request should be routed.

US Patent:

6574705, Jun 3, 2003

Filed:

Nov 16, 2000

Appl. No.:

09/714730

Inventors:

Mark A. Peloquin - Austin TX
Benedict Michael Rafanello - Round Rock TX
Cuong Huu Tran - Austin TX
Cristi Nesbitt Ullmann - Austin TX

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 1200

US Classification:

711114, 711111, 711112, 714 8, 707205

Abstract:

A data processing system and method are disclosed for storing logical volume information used by a logical volume manager to create and manage a logical volume. The data processing system includes a plurality of storage devices. A plurality of physical partitions within the plurality of storage devices are specified. Each one of the physical partitions includes a plurality of sectors. The specified physical partitions are logically combined to create the logical volume. A first plurality of the sectors are reserved in each of the physical partitions for the logical volume information. The first plurality of sectors are located at the top of each of the physical partitions. The logical volume information is stored in the first plurality of sectors in each of the physical partitions. In this manner, the logical volume information is stored at the top of each of the physical partitions.

US Patent:

6636871, Oct 21, 2003

Filed:

Jul 13, 2000

Appl. No.:

09/616131

Inventors:

Benedict Michael Rafanello - Round Rock TX
Mark A. Peloquin - Austin TX
Cuong Huu Tran - Austin TX
Cristi Nesbitt Ullmann - Austin TX

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 1200

US Classification:

707200, 711162, 711111, 711112, 711114, 713 1, 713 2

Abstract:

A system and method for a multi-layer logical volume management (âLVMâ) system which extends the single-layer logical volume model of current technology to handle multiple levels of aggregation more efficiently. Multiple levels of aggregation allows multiple types of aggregators, such as drive linking, mirroring, and software RAID, to be used together to bypass the limitations inherent in each individual aggregation technology. An LVM data area which stores information about the organization of the multi-layer logical volume is stored within the last partition of the logical volume. A fake EBR, which describes the logical volume as if it were a single disk drive, is located in the LVM data area of one of the partitions in the logical volume. A âbottom-to-topâ control methodology is used to locate the LVM data area containing the fake EBR, including setting a special flag in the LVM data area containing the fake EBR. Aggregators search for this flag when creating aggregates, and set a flag in the LVM data area of the aggregate being created if any of the items being aggregated has this flag set.

US Patent:

6711591, Mar 23, 2004

Filed:

Jul 13, 2000

Appl. No.:

09/616146

Inventors:

Benedict Michael Rafanello - Round Rock TX
Mark A. Peloquin - Austin TX
Cuong Huu Tran - Austin TX
Cristi Nesbitt Ullmann - Austin TX

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 1200

US Classification:

707200, 707201, 707202, 707203, 707204, 707205, 707206, 711111, 711112, 711114, 711162, 713 1, 713 2

Abstract:

A system and method for control of data and boot records associated with multi-layer logical volumes allows the logical volume data area containing the fake EBR to be deterministically and efficiently accessed by using a âtop downâ control methodology. Control of the logical volume manager (âLVMâ) data area is distributed. An LVM data area is placed on each aggregate as well as on each partition, and the fake EBR is placed in the LVM data area of the topmost aggregate. The topmost aggregator controls access to the fake EBR, and only this aggregator must provide API functionality to access the fake EBR. This allows the fake EBR to be found and accessed only by new software applications which are âawareâ of the fake EBR, while allowing legacy aggregators to continue to function correctly and allowing legacy software applications to continue to interwork with legacy aggregators through their unchanged APIs.

US Patent:

6751719, Jun 15, 2004

Filed:

Oct 26, 2000

Appl. No.:

09/697449

Inventors:

Mark A. Peloquin - Austin TX
Benedict Michael Rafanello - Round Rock TX
Cuong Huu Tran - Austin TX
Cristi Nesbitt Ullmann - Austin TX

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 1206

US Classification:

711210, 711112, 707514, 707100

Abstract:

A method and apparatus to dynamically order features and resolve conflicts in a logical volume management environment is provided. The method and apparatus classifies features of a logical volume into partition level, aggregate level and volume level classes. Based on these classes and the attributes associated with each feature, ordering of the features in a feature stack is performed and conflicts between features identified for conflict resolution. In addition, the apparatus and method provides a mechanism by which a default ordering of features selected by a user may be generated for a logical volume. The user may accept this default ordering or edit the ordering as long as the user does not generate any conflicts. Any conflicts generated will be reported to the user and the attempted ordering will not be allowed.

US Patent:

6754798, Jun 22, 2004

Filed:

Oct 26, 2000

Appl. No.:

09/697450

Inventors:

Mark A. Peloquin - Austin TX
Benedict Michael Rafanello - Round Rock TX
Cuong Huu Tran - Austin TX
Cristi Nesbitt Ullmann - Austin TX

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 1206

US Classification:

711210, 711112, 707514, 707100

Abstract:

A method and apparatus to dynamically order features and manage features, especially aggregators, during creation of a logical volume is provided. The method and apparatus make use of a partition/aggregate list to identify partitions and/or aggregates that make up a logical volume that is to be created. In addition, the partition/aggregate list identifies features to be applied to the partitions and/or aggregates as well as the order in which these features are to be applied. The order in which these features are to be applied is designated by a current feature indicator (CFI). Based on a current CFI count of an entry in the partition/aggregate list, application of a feature corresponding to the current CFI count is attempted. If successful, the current CFI count is incremented and the process returns to a first entry in the partition/aggregate list. If unsuccessful, the current CFI count is not incremented and the process continues on to the next entry in the partition/aggregate list.

US Patent:

6859878, Feb 22, 2005

Filed:

Oct 28, 1999

Appl. No.:

09/428566

Inventors:

David Andrews Kerr - Austin TX, US
David Medina - Danbury CT, US
Mark A. Peloquin - Austin TX, US
Raymond J. Venditti - Austin TX, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H04L009/00

US Classification:

713183, 380241, 380278, 713184

Abstract:

An improved system, method, and computer program product is provided to manage userid/password combinations by utilizing a universally accessible Internet location. This site stores and manages an encrypted database containing the customers multiple userid and password combinations, and also acts as the repository and distribution center for the software used to access and manage the database by the customer. In one embodiment, these applications are designed to work seamlessly with the Internet connection-software (e. g. a set of buttons on a browsers tool bar). Encryption is used on both the client and/or server side to ensure security and integrity.

US Patent:

7743140, Jun 22, 2010

Filed:

Dec 8, 2006

Appl. No.:

11/608301

Inventors:

Barry Bradley Arndt - Round Rock TX, US
Kevin Michael Corry - Pflugerville TX, US
Mark Alan Peloquin - Austin TX, US
Steven Pratt - Leander TX, US
Santhosh Rao - Austin TX, US
Karl Milton Rister - Austin TX, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 15/173
G06F 13/00

US Classification:

709224, 719317, 719331

Abstract:

A computer implemented method, apparatus, and computer usable program product for binding a process to a selected node of a multi-node system. Input/output activity statistics for a process are retrieved from a set of probes. The set of probes detects a flow of data through an input/output device utilized by the process. A topology of the multi-node system that comprises a location of the input/output device is identified. A node is selected according to a decision policy to form a selected node. The process is bound to the selected node according to the decision policy.