Rong A Zeng

US Patent:

7870567, Jan 11, 2011

Filed:

Apr 25, 2005

Appl. No.:

11/113940

Inventors:

Pinshan Jiang - San Jose CA, US
Hunny Wiratchada Kershaw - San Jose CA, US
Jamee Kim Lee - San Jose CA, US
Stanley Yi-Hsiung Wu - San Jose CA, US
Rong Zeng - San Jose CA, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 9/46
G06F 3/00
G06F 15/16

US Classification:

719327, 710 1, 710 38, 709230

Abstract:

Provided are a method, system, and program for configuring a device using information from a device table. Device information is obtained for a device coupled to a system. The device information is provided to a device driver executing in the system. The device driver calls a method in response to determining the device driver does not support the device identified by the device information. The method provides device configuration information from a device table to the device driver. The device driver uses the device configuration information in the device table to configure the device for use in the system.

US Patent:

7363399, Apr 22, 2008

Filed:

Aug 17, 2005

Appl. No.:

11/206938

Inventors:

Che Lui Shum - San Jose CA, US
Limei Shaw - San Jose CA, US
Lucy Ya Mei Kung - Milpitas CA, US
Rong Zeng - San Jose CA, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 3/00

US Classification:

710 52, 710 36, 710 39, 711156, 711167, 310229, 310231, 310232, 31039521

Abstract:

In accordance with a computer program product, apparatus and a method there is provided a redundant network wherein a host computer operates with a plurality of storage devices by monitoring conditions of the multipath storage network and controlling a storage multipath device driver in conjunction with an associated storage multipath device input/output (I/O) pending queue to increase I/O throughput to a storage device driver, such as a disk device driver, when I/O demand increases, and to decrease I/O throughput to the storage device driver in the event of an I/O error condition.

US Patent:

20070174849, Jul 26, 2007

Filed:

Jan 12, 2006

Appl. No.:

11/330484

Inventors:

Yan Cheung - San Jose CA, US
Jeinay Dedhia - San Jose CA, US
Darshan Vora - San Jose CA, US
Rong Zeng - San Jose CA, US

International Classification:

G06F 9/46

US Classification:

719321000

Abstract:

A non-disruptive multipath device driver update system and method are provided. An additional layer device driver is provided between applications running on host system and the multipath device driver such that when an upgrade or update operation is performed on a multipath device driver, the layer device driver redirects I/O operation requests through a standby multipath device driver or an operating system disk I/O device driver. The multipath device driver may then be unloaded and updated without having to experience any downtime since I/O operation requests may still be issued by the applications and redirected around the unloaded multipath device driver. Once the multipath device driver is updated, I/O operation requests may be again routed to the updated multipath device driver and the system may operate in a normal fashion.

US Patent:

20080046609, Feb 21, 2008

Filed:

Oct 26, 2007

Appl. No.:

11/924782

Inventors:

Che Lui SHUM - San Jose CA, US
Limei Shaw - San Jose CA, US
Lucy Kung - Milpitas CA, US
Rong Zeng - San Jose CA, US

International Classification:

G06F 13/38

US Classification:

710033000

Abstract:

In accordance with a computer program product, apparatus and a method there is provided a redundant network wherein a host computer operates with a plurality of storage devices by monitoring conditions of the multipath storage network and controlling a storage multipath device driver in conjunction with an associated storage multipath device input/output (I/O) pending queue to increase I/O throughput to a storage device driver, such as a disk device driver, when I/O demand increases, and to decrease I/O throughput to the storage device driver in the event of an I/O error condition.

US Patent:

20160217051, Jul 28, 2016

Filed:

Apr 4, 2016

Appl. No.:

15/090046

Inventors:

- Armonk NY, US
Rong Zeng - San Jose CA, US

International Classification:

G06F 11/20
G06F 17/30

Abstract:

A mechanism is provided in a data processing system for unobtrusive failover in a clustered file system. A node in the clustered file system periodically monitors publicized resource events from a cluster manager in the clustered file system for a triggering event that triggers a grace period. Responsive to detecting a triggering event, the node enters a grace period without restarting. During the grace period, the node processes a state request from a first client.

US Patent:

20150006955, Jan 1, 2015

Filed:

Jun 27, 2013

Appl. No.:

13/929211

Inventors:

- Armonk NY, US
Rong Zeng - San Jose CA, US

International Classification:

G06F 11/14

US Classification:

714 15

Abstract:

A mechanism is provided in a data processing system for unobtrusive failover in a clustered file system. A node in the clustered file system periodically monitors publicized resource events from a cluster manager in the clustered file system for a triggering event that triggers a grace period. Responsive to detecting a triggering event, the node enters a grace period without restarting. During the grace period, the node processes a state request from a first client.