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Giridhar G Athreya

from Lake Forest, CA
Age ~68
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Also known as:
Rangaswamy P Giridhar, Athreya Giridhar, Rangaswany Giridhar
Related to:
Joy Mosiej, 65Shirlee Quinn, 72Archie Thompson, 44Joy L Lindell, 71Vijay Kollengode, 40
Connected to:
Aparna V Athreya, 55Prashanth Athreya, 41Kalhara S Athukoralla, 55Glenda Athus, 54Jarnail S Athwal, 87Jaspreet S Athwal, 41Randeep K Athwal, 48Surinder S Athwal, 59Aaron Athy, 52Brendan J Athy, 37

Giridhar Athreya Phones & Addresses

  • Lake Forest, CA
  • Fullerton, CA
  • Mission Viejo, CA
  • Las Vegas, NV
  • Los Angeles, CA
  • Orange, CA

Publications

Us Patents

Universal Multi-Path Driver For Storage Systems Including An External Boot Device With Failover And Failback Capabilities

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US Patent:
7406617, Jul 29, 2008
Filed:
Nov 22, 2004
Appl. No.:
10/996271
Inventors:
Giridhar Athreya - Lake Forest CA, US
Juan Carlos Ortiz - Dana Point CA, US
Assignee:
Unisys Corporation - Blue Bell PA
International Classification:
G06F 11/00
G06F 15/173
US Classification:
714 4, 714 43, 709239
Abstract:
An embodiment of the invention is a technique for monitoring via a universal multipath driver (UMD) a first path to one of a plurality of virtual device objects. The virtual device objects are created by the UMD and correspond to a plurality of functional device objects. The functional device objects are created by a plurality of lower level drivers and correspond to a plurality of real physical devices having M device types including an external boot device. The UMD is a functional driver of each of the functional device objects. The lower level drivers control the real physical devices. The UMD detects a failure of the first path to a first virtual device object corresponding to a first real physical device and performs one of failover and failback for the first real physical device.

Failover And Failback Using A Universal Multi-Path Driver For Storage Devices

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US Patent:
8122120, Feb 21, 2012
Filed:
Dec 16, 2002
Appl. No.:
10/320962
Inventors:
Giridhar Athreya - Lake Forest CA, US
Chris B. Legg - Oceanside CA, US
Juan Carlos Ortiz - San Diego CA, US
Assignee:
Unisys Corporation - Blue Bell PA
International Classification:
G06F 15/173
US Classification:
709224, 709225, 709226, 709227, 709239, 714 2, 714 4, 714 5, 714 7, 714 8, 714 12, 714 18, 714 26, 714 43, 370230, 370238
Abstract:
An embodiment of the invention is a technique to manage failover and failback. A failover of a first path is detected. The first path corresponds to a first device in a plurality of physical devices having M device types. A connection status of the first device is determined if the failover is detected. The connection status is one of a connected status and a disconnected status. The disconnected status corresponds to the failover. The first path is adjusted according to the connection status.

Universal Multi-Path Driver For Storage Systems

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US Patent:
7222348, May 22, 2007
Filed:
Dec 16, 2002
Appl. No.:
10/321029
Inventors:
Giridhar Athreya - Lake Forest CA, US
Chris B. Legg - Oceanside CA, US
Juan Carlos Ortiz - San Diego CA, US
Assignee:
Unisys Corporation - Blue Bell PA
International Classification:
G06F 3/00
US Classification:
719321
Abstract:
An embodiment of the invention is a technique to manage multipaths for input/output (I/O) devices. An I/O request packet (IRP) from a higher level driver is received. A plurality of paths to a plurality of device objects is managed in response to the IRP using a plurality of lower level drivers. The device objects correspond to physical devices having M device types. The lower level drivers control the physical devices.
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Giridhar G Athreya from Lake Forest, CA, age ~68 Get Report