Patents by Inventor Balakumar N. Kaushik
Balakumar N. Kaushik has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11115349Abstract: An interfabric link between two separate Fibre Channel fabrics so that devices in one fabric can communicate with devices in another fabric without requiring the merger of the two fabrics. The interfabric switch performs a conversion or a translation of device addresses in each fabric so that they are accessible to the other fabric. This translation is preferably done using a private to public loop address translation. In a first embodiment the external ports of the interfabric switch are configured as E_ports. A series of internal ports in each interfabric switch are joined together forming a series of virtual or logical switches. The virtual switches are then interconnected using private loops. The use of the private loop is enabled by the presence of translation logic which converts fabric addresses to loop addresses and back so that loop and fabric devices can communicate.Type: GrantFiled: August 29, 2019Date of Patent: September 7, 2021Assignee: Avago Technologies International Sales Pte. LimitedInventors: Christopher A. Del Signore, Vineet M. Abraham, Sathish K. Gnanasekaran, Pranab Patnaik, Vincent W. Guan, Balakumar N. Kaushik
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Publication number: 20190386932Abstract: An interfabric link between two separate Fibre Channel fabrics so that devices in one fabric can communicate with devices in another fabric without requiring the merger of the two fabrics. The interfabric switch performs a conversion or a translation of device addresses in each fabric so that they are accessible to the other fabric. This translation is preferably done using a private to public loop address translation. In a first embodiment the external ports of the interfabric switch are configured as E_ports. A series of internal ports in each interfabric switch are joined together forming a series of virtual or logical switches. The virtual switches are then interconnected using private loops. The use of the private loop is enabled by the presence of translation logic which converts fabric addresses to loop addresses and back so that loop and fabric devices can communicate.Type: ApplicationFiled: August 29, 2019Publication date: December 19, 2019Applicant: Avago Technologies International Sales Pte. LimitedInventors: Christopher A. Del Signore, Vineet M. Abraham, Sathish K. Gnanasekaran, Pranab Patnaik, Vincent W. Guan, Balakumar N. Kaushik
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Patent number: 10432555Abstract: An interfabric link between two separate Fiber Channel fabrics so that devices in one fabric can communicate with devices in another fabric without requiring the merger of the two fabrics. The interfabric switch performs a conversion or a translation of device addresses in each fabric so that they are accessible to the other fabric. This translation is preferably done using a private to public loop address translation. In a first embodiment the external ports of the interfabric switch are configured as E_ports. A series of internal ports in each interfabric switch are joined together forming a series of virtual or logical switches. The virtual switches are then interconnected using private loops. The use of the private loop is enabled by the presence of translation logic which converts fabric addresses to loop addresses and back so that loop and fabric devices can communicate.Type: GrantFiled: September 15, 2015Date of Patent: October 1, 2019Assignee: AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITEDInventors: Christopher A. Del Signore, Vineet M. Abraham, Sathish K. Gnanasekaran, Pranab Patnaik, Vincent W. Guan, Balakumar N. Kaushik
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Patent number: 9712613Abstract: Copy capability moved into the SAN fabric and provided as a data mover service. A well-known address is utilized to receive copy commands from the hosts. Each switch in the fabric contains a front end or service interface which receives the copy command and manages access control or zoning and LUN mapping. LUN mapping and zoning are based on shared databases. Assuming correct zoning, the service interface will perform any necessary LUN mapping on the received copy command and forward the command to a copy engine to perform the copy operation. The switch service interface also maintains copy operation status, querying the copy engine if necessary, so that any host status requests are also simply handled. Additionally, if multiple copy engines are present, the switches can communicate to perform load balancing.Type: GrantFiled: April 29, 2003Date of Patent: July 18, 2017Assignee: Brocade Communications Systems, Inc.Inventors: Shankar Balasubramanian, Balakumar N. Kaushik, Richard L. Hammons
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Publication number: 20160006674Abstract: An interfabric link between two separate Fibre Channel fabrics so that devices in one fabric can communicate with devices in another fabric without requiring the merger of the two fabrics. The interfabric switch performs a conversion or a translation of device addresses in each fabric so that they are accessible to the other fabric. This translation is preferably done using a private to public loop address translation. In a first embodiment the external ports of the interfabric switch are configured as E_ports. A series of internal ports in each interfabric switch are joined together forming a series of virtual or logical switches. The virtual switches are then interconnected using private loops. The use of the private loop is enabled by the presence of translation logic which converts fabric addresses to loop addresses and back so that loop and fabric devices can communicate.Type: ApplicationFiled: September 15, 2015Publication date: January 7, 2016Inventors: Christopher A. Del Signore, Vineet M. Abraham, Sathish K. Gnanasekaran, Pranab Patnaik, Vincent W. Guan, Balakumar N. Kaushik
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Patent number: 9172556Abstract: An interfabric link between two separate Fiber Channel fabrics so that devices in one fabric can communicate with devices in another fabric without requiring the merger of the two fabrics. The interfabric switch performs a conversion or a translation of device addresses in each fabric so that they are accessible to the other fabric. In a first embodiment the external ports of the interfabric switch are configured as E_ports. A series of internal ports in each interfabric switch are joined together forming a series of virtual or logical switches. In a second embodiment the external ports are configured as NL_ports and the connections between the virtual switches are E_ports. The virtual switches in the interfabric switch match domains with their external counterparts so that the virtual switches effectively form their own fabric.Type: GrantFiled: October 28, 2011Date of Patent: October 27, 2015Assignee: Brocade Communications Systems, Inc.Inventors: Christopher A. Del Signore, Vineet M. Abraham, Satish K. Gnanasekaran, Pranab Patnaik, Vincent W. Guan, Balakumar N. Kaushik
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Patent number: 8135858Abstract: An isolation switch blade Fibre Channel switch presents F_ports to form a first Fibre Channel fabric and N_ports to a second Fibre Channel fabric to appear as node devices. The isolation switch blade may be used to connect a plurality of blade servers to a Fibre Channel fabric. Fabric events engendered by the insertion or removal of hot-pluggable devices are handled by the isolation switch blade and “event storms” on the Fibre Channel fabric are avoided. The isolation switch blade presents the blade servers to the FC fabric as a virtualized N_port.Type: GrantFiled: September 21, 2011Date of Patent: March 13, 2012Assignee: Brocade Communications Systems, Inc.Inventors: Santosh Shanbhag, Richard L. Hammons, Balakumar N. Kaushik, Vincent W. Guan
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Publication number: 20120044933Abstract: An interfabric link between two separate Fibre Channel fabrics so that devices in one fabric can communicate with devices in another fabric without requiring the merger of the two fabrics. The interfabric switch performs a conversion or a translation of device addresses in each fabric so that they are accessible to the other fabric. In a first embodiment the external ports of the interfabric switch are configured as E_ports. A series of internal ports in each interfabric switch are joined together forming a series of virtual or logical switches. In a second embodiment the external ports are configured as NL_ports and the connections between the virtual switches are E_ports. The virtual switches in the interfabric switch match domains with their external counterparts so that the virtual switches effectively form their own fabric.Type: ApplicationFiled: October 28, 2011Publication date: February 23, 2012Applicant: BROCADE COMMUNICATIONS SYSTEMS, INC.Inventors: Christopher A. Del Signore, Vineet M. Abraham, Sathish K. Gnanasekaran, Pranab Patnaik, Vincent W. Guan, Balakumar N. Kaushik
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Publication number: 20120044934Abstract: An interfabric link between two separate Fibre Channel fabrics so that devices in one fabric can communicate with devices in another fabric without requiring the merger of the two fabrics. The interfabric switch performs a conversion or a translation of device addresses in each fabric so that they are accessible to the other fabric. In a first embodiment the external ports of the interfabric switch are configured as E_ports. A series of internal ports in each interfabric switch are joined together forming a series of virtual or logical switches. In a second embodiment the external ports are configured as NL_ports and the connections between the virtual switches are E_ports. The virtual switches in the interfabric switch match domains with their external counterparts so that the virtual switches effectively form their own fabric.Type: ApplicationFiled: October 28, 2011Publication date: February 23, 2012Applicant: BROCADE COMMUNICATIONS SYSTEMS, INC.Inventors: Christopher A. Del Signore, Vineet M. Abraham, Sathish K. Gnanasekaran, Pranab Patnaik, Vincent W. Guan, Balakumar N. Kaushik
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Publication number: 20120011297Abstract: An isolation switch blade Fibre Channel switch presents F_ports to form a first Fibre Channel fabric and N_ports to a second Fibre Channel fabric to appear as node devices. The isolation switch blade may be used to connect a plurality of blade servers to a Fibre Channel fabric. Fabric events engendered by the insertion or removal of hot-pluggable devices are handled by the isolation switch blade and “event storms” on the Fibre Channel fabric are avoided. The isolation switch blade presents the blade servers to the FC fabric as a virtualized N_port.Type: ApplicationFiled: September 21, 2011Publication date: January 12, 2012Applicant: Brocade Communications Systems, Inc.Inventors: Santosh Shanbhag, Richard L. Hammons, Balakumar N. Kaushik, Vincent W. Guan
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Patent number: 8081642Abstract: An interfabric link between two separate Fibre Channel fabrics so that devices in one fabric can communicate with devices in another fabric without requiring the merger of the two fabrics. The interfabric switch performs a conversion or a translation of device addresses in each fabric so that they are accessible to the other fabric. This translation is preferably done using a private to public loop address translation. In a first embodiment the external ports of the interfabric switch are configured as E_ports. A series of internal ports in each interfabric switch are joined together forming a series of virtual or logical switches. The virtual switches are then interconnected using private loops. The use of the private loop is enabled by the presence of translation logic which converts fabric addresses to loop addresses and back so that loop and fabric devices can communicate.Type: GrantFiled: January 31, 2003Date of Patent: December 20, 2011Assignee: Brocade Communications Systems, Inc.Inventors: Christopher A. Del Signore, Vineet M. Abraham, Sathish K. Gnanasekaran, Pranab Patnaik, Vincent W. Guan, Balakumar N. Kaushik
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Patent number: 8055794Abstract: An isolation switch blade Fiber Channel switch presents F_ports to form a first Fiber Channel fabric and N_ports to a second Fiber Channel fabric to appear as node devices. The isolation switch blade may be used to connect a plurality of blade servers to a Fiber Channel fabric. Fabric events engendered by the insertion or removal of hot-pluggable devices are handled by the isolation switch blade and “event storms” on the Fiber Channel fabric are avoided. The isolation switch blade presents the blade servers to the FC fabric as a virtualized N_port.Type: GrantFiled: January 10, 2011Date of Patent: November 8, 2011Assignee: Brocade Communications Systems, Inc.Inventors: Santosh Shanbhag, Richard L. Hammons, Balakumar N. Kaushik, Vincent W. Guan
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Publication number: 20110196986Abstract: An isolation switch blade Fibre Channel switch presents F_ports to form a first Fibre Channel fabric and N_ports to a second Fibre Channel fabric to appear as node devices. The isolation switch blade may be used to connect a plurality of blade servers to a Fibre Channel fabric. Fabric events engendered by the insertion or removal of hot-pluggable devices are handled by the isolation switch blade and “event storms” on the Fibre Channel fabric are avoided. The isolation switch blade presents the blade servers to the FC fabric as a virtualized N_port.Type: ApplicationFiled: January 10, 2011Publication date: August 11, 2011Applicant: BROCADE COMMUNICATIONS SYSTEMS, INC.Inventors: Santosh Shanbhag, Richard L. Hammons, Balakumar N. Kaushik, Vincent W. Guan
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Patent number: 7877512Abstract: An isolation switch blade Fiber Channel switch presents F_ports to form a first Fiber Channel fabric and N_ports to a second Fiber Channel fabric to appear as node devices. The isolation switch blade may be used to connect a plurality of blade servers to a Fiber Channel fabric. Fabric events engendered by the insertion or removal of hot-pluggable devices are handled by the isolation switch blade and “event storms” on the Fiber Channel fabric are avoided. The isolation switch blade presents the blade servers to the FC fabric as a virtualized N_port.Type: GrantFiled: March 11, 2010Date of Patent: January 25, 2011Assignee: Brocade Communications Systems, Inc.Inventors: Santosh Shanbhag, Richard L. Hammons, Balakumar N. Kaushik, Vincent W. Guan
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Patent number: 7865627Abstract: The snapshot capability moving into the SAN fabric and being provided as a snapshot service. A well-known address is utilized to receive snapshot commands. Each switch in the fabric connected to a host contains a front end or service interface to receive the snapshot command. Each switch of the fabric connected to a storage device used in the snapshot process contains a write interceptor module which cooperates with hardware in the switch to capture any write operations which would occur to the snapshot data area. The write interceptor then holds these particular write operations until the original blocks are transferred to a snapshot or separate area so that the original read data is maintained. Should a read operation occur to the snapshot device and the original data from requested location has been relocated, a snapshot server captures these commands and redirects the read operation to occur from the snapshot area.Type: GrantFiled: October 8, 2009Date of Patent: January 4, 2011Assignee: Brocade Communications Systems, Inc.Inventors: Balakumar N. Kaushik, Shankar Balasubramanian, Richard L. Hammons
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Publication number: 20100166422Abstract: An isolation switch blade Fibre Channel switch presents F_ports to form a first Fibre Channel fabric and N_ports to a second Fibre Channel fabric to appear as node devices. The isolation switch blade may be used to connect a plurality of blade servers to a Fibre Channel fabric. Fabric events engendered by the insertion or removal of hot-pluggable devices are handled by the isolation switch blade and “event storms” on the Fibre Channel fabric are avoided. The isolation switch blade presents the blade servers to the FC fabric as a virtualized N_port.Type: ApplicationFiled: March 11, 2010Publication date: July 1, 2010Applicant: BROCADE COMMUNICATIONS SYSTEMS, INC.Inventors: Santosh Shanbhag, Richard L. Hammons, Balakumar N. Kaushik, Vincent W. Guan
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Patent number: 7707309Abstract: An isolation switch blade Fibre Channel switch presents F_ports to form a first Fibre Channel fabric and N_ports to a second Fibre Channel fabric to appear as node devices. The isolation switch blade may be used to connect a plurality of blade servers to a Fibre Channel fabric. Fabric events engendered by the insertion or removal of hot-pluggable devices are handled by the isolation switch blade and “event storms” on the Fibre Channel fabric are avoided. The isolation switch blade presents the blade servers to the FC fabric as a virtualized N_port.Type: GrantFiled: January 29, 2004Date of Patent: April 27, 2010Assignee: Brocade Communication Systems, Inc.Inventors: Santosh Shanbhag, Richard L. Hammons, Balakumar N. Kaushik, Vincent W. Guan
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Publication number: 20100088481Abstract: The snapshot capability moving into the SAN fabric and being provided as a snapshot service. A well-known address is utilized to receive snapshot commands. Each switch in the fabric connected to a host contains a front end or service interface to receive the snapshot command. Each switch of the fabric connected to a storage device used in the snapshot process contains a write interceptor module which cooperates with hardware in the switch to capture any write operations which would occur to the snapshot data area. The write interceptor then holds these particular write operations until the original blocks are transferred to a snapshot or separate area so that the original read data is maintained. Should a read operation occur to the snapshot device and the original data from requested location has been relocated, a snapshot server captures these commands and redirects the read operation to occur from the snapshot area.Type: ApplicationFiled: October 8, 2009Publication date: April 8, 2010Applicant: BROCADE COMMUNICATION SYSTEMS, INC.Inventors: BALAKUMAR N. KAUSHIK, SHANKAR BALASUBRAMANIAN, RICHARD L. HAMMONS
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Patent number: 7620742Abstract: The snapshot capability moving into the SAN fabric and being provided as a snapshot service. A well-known address is utilized to receive snapshot commands. Each switch in the fabric connected to a host contains a front end or service interface to receive the snapshot command. Each switch of the fabric connected to a storage device used in the snapshot process contains a write interceptor module which cooperates with hardware in the switch to capture any write operations which would occur to the snapshot data area. The write interceptor then holds these particular write operations until the original blocks are transferred to a snapshot or separate area so that the original read data is maintained. Should a read operation occur to the snapshot device and the original data from requested location has been relocated, a snapshot server captures these commands and redirects the read operation to occur from the snapshot area.Type: GrantFiled: July 14, 2006Date of Patent: November 17, 2009Assignee: Brocade Communication Systems, Inc.Inventors: Balakumar N. Kaushik, Shankar Balasubramanian, Richard L. Hammons
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Patent number: 7571261Abstract: The snapshot capability moving into the SAN fabric and being provided as a snapshot service. A well-known address is utilized to receive snapshot commands. Each switch in the fabric connected to a host contains a front end or service interface to receive the snapshot command. Each switch of the fabric connected to a storage device used in the snapshot process contains a write interceptor module which cooperates with hardware in the switch to capture any write operations which would occur to the snapshot data area. The write interceptor then holds these particular write operations until the original blocks are transferred to a snapshot or separate area so that the original read data is maintained. Should a read operation occur to the snapshot device and the original data from requested location has been relocated, a snapshot server captures these commands and redirects the read operation to occur from the snapshot area.Type: GrantFiled: July 14, 2006Date of Patent: August 4, 2009Assignee: Brocade Communications Systems, Inc.Inventors: Balakumar N. Kaushik, Shankar Balasubramanian, Richard L. Hammons