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Poonam Dhavale Phones & Addresses

  • 1468 Greene Dr, San Jose, CA 95129 (408) 996-9813
  • 1115 Hidden Rdg, Irving, TX 75038
  • 395 Ano Nuevo Ave, Sunnyvale, CA 94085
  • 1468 Greene Dr, San Jose, CA 95129

Publications

Us Patents

System And Method For Managing I/O Access Policies In A Storage Environment Employing Asymmetric Distributed Block Virtualization

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US Patent:
7328287, Feb 5, 2008
Filed:
Jul 26, 2004
Appl. No.:
10/899201
Inventors:
Kalaivani Arumugham - Sunnyvale CA, US
Santosh Rao - Santa Clara CA, US
Gopal Sharma - San Jose CA, US
Poonam Dhavale - Sunnyvale CA, US
Randy Shingai - San Jose CA, US
Ronald S. Karr - Sunnyvale CA, US
Oleg Kiselev - Palo Alto CA, US
Assignee:
Symantec Operating Corporation - Cupertino CA
International Classification:
G06F 13/00
G06F 15/16
G06F 15/167
US Classification:
710 31, 710 6, 710 33, 711100, 711162, 709203, 709205, 709213, 709216
Abstract:
A system employing asymmetric distributed block virtualization includes a volume server, a plurality of volume clients, and one or more physical block devices. The volume server aggregates storage in the physical block devices into a logical volume and makes the logical volume accessible to the volume clients for input/output (I/O) operations. In order to manage different I/O access requirements (such as read-only access versus read-write access) of the volume clients, the volume server maintains a different I/O access policy for each volume client to control the kinds of input/output operations that the volume client is allowed to perform on the logical volume.

System And Method For Recoverable Mirroring In A Storage Environment Employing Asymmetric Distributed Block Virtualization

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US Patent:
7340640, Mar 4, 2008
Filed:
May 3, 2004
Appl. No.:
10/838162
Inventors:
Ronald S. Karr - Sunnyvale CA, US
Kalaivani Arumugham - Sunnyvale CA, US
John A. Colgrove - Los Altos CA, US
Poonam Dhavale - Sunnyvale CA, US
Assignee:
Symantec Operating Corporation - Cupertino CA
International Classification:
G06F 11/00
US Classification:
714 6, 711209
Abstract:
Systems and methods for performing recoverable mirroring in a storage environment employing asymmetrically distributed block virtualization. In one embodiment, the system may include a volume server, a first and a second host computer system, and a plurality of physical block devices. The volume server may be configured to aggregate storage in the plurality of physical block devices into a plurality of logical volumes, where a particular logical volume includes storage from at least two physical block devices, to make a first subset of the logical volumes available to the first host computer system for input/output, and to make a second subset of the logical volumes available to the second host computer system for input/output. The first subset and the second subset may be at least partially nonoverlapping, a given logical volume may be configured as a mirrored logical volume including a plurality of copies of a given data block.

System And Method For Performing Snapshots In A Storage Environment Employing Distributed Block Virtualization

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US Patent:
7389394, Jun 17, 2008
Filed:
May 3, 2004
Appl. No.:
10/838043
Inventors:
Ronald S. Karr - Sunnyvale CA, US
Kalaivani Arumugham - Sunnyvale CA, US
Anand A. Kekre - Pune, IN
Poonam Dhavale - Sunnyvale CA, US
Assignee:
Symantec Operating Corporation - Cupertino CA
International Classification:
G06F 12/16
US Classification:
711162, 711161, 711203
Abstract:
Systems and methods for performing snapshots in a storage environment employing distributed block virtualization. In one embodiment, the system may include a volume server, a first and a second host computer system, and a plurality of physical block devices. The volume server may be configured to aggregate storage in the plurality of physical block devices into a plurality of logical volumes, where a particular logical volume includes storage from at least two physical block devices. The volume server may further be configured to make a first and a second subset of the logical volumes available to the first and second host computer systems for input/output, respectively. The first subset and the second subset may be at least partially nonoverlapping, and a second logical volume may be configured to store a snapshot of data stored in a first logical volume logical volume.

System And Method For Managing I/O Access Policies In A Storage Environment Employing Asymmetric Distributed Block Virtualization

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US Patent:
7627699, Dec 1, 2009
Filed:
Sep 30, 2007
Appl. No.:
11/865034
Inventors:
Kalaivani Arumugham - Sunnyvale CA, US
Santosh Rao - Santa Clara CA, US
Gopal Sharma - San Jose CA, US
Poonam Dhavale - Sunnyvale CA, US
Randy Shingai - San Jose CA, US
Ronald S. Karr - Sunnyvale CA, US
Oleg Kiselev - Palo Alto CA, US
Assignee:
Symantec Operating Corporation - Mountain View CA
International Classification:
G06F 13/00
G06F 15/16
G06F 15/167
US Classification:
710 31, 710 6, 710 33, 711100, 711162, 709203, 709205, 709213, 709216
Abstract:
A system employing asymmetric distributed block virtualization includes a volume server, a plurality of volume clients, and one or more physical block devices. The volume server aggregates storage in the physical block devices into a logical volume and makes the logical volume accessible to the volume clients for input/output (I/O) operations. In order to manage different I/O access requirements (such as read-only access versus read-write access) of the volume clients, the volume server maintains a different I/O access policy for each volume client to control the kinds of input/output operations that the volume client is allowed to perform on the logical volume.

System And Method For Resolving Cluster Partitions In Out-Of-Band Storage Virtualization Environments

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US Patent:
7739541, Jun 15, 2010
Filed:
Jul 25, 2003
Appl. No.:
10/627385
Inventors:
Santosh S. Rao - Santa Clara CA, US
Gopal Sharma - San Jose CA, US
Poonam P. Dhavale - Sunnyvale CA, US
Assignee:
Symantec Operating Corporation - Mountain View CA
International Classification:
G06F 11/00
US Classification:
714 4, 709205, 709220, 709232, 714 6, 714 13
Abstract:
Systems, methods, apparatus and software can configure, support, and make use of a coordinator virtual device to determine which node or nodes of a cluster should be ejected from the cluster as a result of a cluster partition or other error event. Fencing software operating on the cluster nodes monitors the cluster for a cluster partition (split-brain) event, and when such an event occurs, software on the nodes attempts to gain control of the coordinator virtual device. A node that succeeds in gaining control of the coordinator virtual device survives. Nodes failing to gain control of the coordinator virtual device remove themselves or are removed from the cluster. The coordinator virtual device can be established by a virtual device configuration server which provides coordinator virtual device access to cluster nodes acting as virtual device configuration clients.

System And Method For Managing I/O Errors In A Storage Environment Employing Asymmetric Distributed Block Virtualization

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US Patent:
7293191, Nov 6, 2007
Filed:
Jul 26, 2004
Appl. No.:
10/899195
Inventors:
Kalaivani Arumugham - Sunnyvale CA, US
Santosh Rao - Santa Clara CA, US
Gopal Sharma - San Jose CA, US
Poonam Dhavale - Sunnyvale CA, US
Michael Wahl - Georgetown TX, US
Oleg Kiselev - Palo Alto CA, US
Assignee:
Symantec Operating Corporation - Cupertino CA
International Classification:
G06F 11/00
US Classification:
714 5
Abstract:
A system for managing input/output (I/O) errors in a storage system employing asymmetric distributed block virtualization includes a volume server, a plurality of volume clients, and one or more physical block devices. The volume server aggregates storage in the physical block devices into a logical volume and makes the logical volume accessible to the volume client. A designated route may be used to send I/O requests from the volume client to a physical block device during normal operation. If the volume client loses connectivity on the designated route, the volume client may route an I/O request to the physical block device via an alternate route. In one specific embodiment, the volume client may route an I/O request to the physical block device via the volume server.
Poonam P Dhavale from San Jose, CA, age ~50 Get Report