Patents by Inventor Venkata N.S. Anumula
Venkata N.S. Anumula 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: 11099952Abstract: Populating cache of a virtual server. A data record is generated that is associated with a first virtual server. A set of data is saved that describes data in a cache that is associated with the first virtual server. In response to either (i) a failover of the first virtual server or (ii) a migration request for the first virtual server, a cache of a second virtual server is populated based on the set of data.Type: GrantFiled: November 6, 2018Date of Patent: August 24, 2021Assignee: International Business Machines CorporationInventors: Vamshikrishna Thatikonda, Sanket Rathi, Venkata N. S. Anumula
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Patent number: 10921993Abstract: Embodiments include systems, methods, and computer program products to perform an operation for enabling multipath I/O for logical volume backed virtual disks through redundant virtual I/O servers (VIOSs) on a computing system. The operation generally includes creating, from a physical storage device, a logical volume on a first VIOS. The logical volume on the first VIOS is activated in a first access mode. The operation also includes importing the logical volume to a second VIOS. The logical volume on the second VIOS is activated in a second access mode different from the first access mode. The operation further includes mapping the logical volume on the first and second VIOSs as a backing storage device for at least one logical partition hosted on the computing system.Type: GrantFiled: January 15, 2019Date of Patent: February 16, 2021Assignee: International Business Machines CorporationInventors: Venkata N. S. Anumula, Sudhir Maddali, Sanket Rathi
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Patent number: 10656834Abstract: An interface superpipe is implemented in a filesystem. A filesystem in a kernel, receives a command to open a file, the command issued in the execution of a process in an application. The file is determined to be on an interface disk. It is determined that a context does not exist for the process and, in response, an adapter queue is allocated for the process in a kernel memory and mapped into a process address space associated with the process. The context information of the process is saved in the kernel memory. The filesystem may be part of a system further comprising a processor, a storage, an interface adapter in communication with the storage and sharing a memory space with the processor, and an application in communication with the filesystem.Type: GrantFiled: October 31, 2017Date of Patent: May 19, 2020Assignee: International Business Machines CorporationInventors: Vinod K. Boddukuri, Phani Kumar V. U. Ayyagari, Venkata N. S. Anumula, Sudhir Maddali, Sanket Rathi, Bruce G. Mealey
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Publication number: 20200142787Abstract: Populating cache of a virtual server. A data record is generated that is associated with a first virtual server. A set of data is saved that describes data in a cache that is associated with the first virtual server. In response to either (i) a failover of the first virtual server or (ii) a migration request for the first virtual server, a cache of a second virtual server is populated based on the set of data.Type: ApplicationFiled: November 6, 2018Publication date: May 7, 2020Inventors: VAMSHIKRISHNA THATIKONDA, SANKET RATHI, VENKATA N. S. ANUMULA
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Patent number: 10552186Abstract: An approach for avoiding overloads of network adapters. The approach receives one or more requests from one or more virtual machines, wherein the one or more requests are directed to one or more network adapters. The approach determines whether a first network adapter of the one or more network adapters is saturated. Responsive to a determination that the first network adapter is saturated, the approach sends a first busy event to a first virtual machine of the one or more virtual machines.Type: GrantFiled: May 15, 2017Date of Patent: February 4, 2020Assignee: International Business Machines CorporationInventors: Kiran K. Anumalasetty, Venkata N. S. Anumula, Vinod Kumar Boddukuri, Sanket Rathi, Rajaboina Yadagiri
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Publication number: 20190265902Abstract: A method, computer system, and a computer program product for live application migration is provided. The present invention may include receiving, by a first host, a request to migrate an application to a second host. The present invention may include determining the received application request is using a first virtual LUN from a Coherent Accelerator Processor Interface (CAPI) Flash on the first host. The present invention may include identifying an associated CAPI context and a virtual LUN mapping table based on the determined application request. The present invention may include copying the identified virtual LUN mapping table and a plurality of application data to the second host. The present invention may include creating a CAPI context based on the identified virtual LUN mapping table and the plurality of application data. The present invention may include associating the copied virtual LUN mapping table to the second host.Type: ApplicationFiled: February 28, 2018Publication date: August 29, 2019Inventors: Venkata N.S. Anumula, Vinod K. Boddukuri, Sudhir Maddali, Sanket Rathi
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Patent number: 10394466Abstract: Embodiments include systems, methods, and computer program products to perform an operation for enabling multipath I/O for logical volume backed virtual disks through redundant virtual I/O servers (VIOSs) on a computing system. The operation generally includes creating, from a physical storage device, a logical volume on a first VIOS. The logical volume on the first VIOS is activated in a first access mode. The operation also includes importing the logical volume to a second VIOS. The logical volume on the second VIOS is activated in a second access mode different from the first access mode. The operation further includes mapping the logical volume on the first and second VIOSs as a backing storage device for at least one logical partition hosted on the computing system.Type: GrantFiled: January 26, 2017Date of Patent: August 27, 2019Assignee: International Business Machines CorporationInventors: Venkata N. S. Anumula, Sudhir Maddali, Sanket Rathi
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Publication number: 20190146692Abstract: Embodiments include systems, methods, and computer program products to perform an operation for enabling multipath I/O for logical volume backed virtual disks through redundant virtual I/O servers (VIOSs) on a computing system. The operation generally includes creating, from a physical storage device, a logical volume on a first VIOS. The logical volume on the first VIOS is activated in a first access mode. The operation also includes importing the logical volume to a second VIOS. The logical volume on the second VIOS is activated in a second access mode different from the first access mode. The operation further includes mapping the logical volume on the first and second VIOSs as a backing storage device for at least one logical partition hosted on the computing system.Type: ApplicationFiled: January 15, 2019Publication date: May 16, 2019Inventors: Venkata N.S. ANUMULA, Sudhir MADDALI, Sanket RATHI
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Publication number: 20190129619Abstract: An interface superpipe is implemented in a filesystem. A filesystem in a kernel, receives a command to open a file, the command issued in the execution of a process in an application. The file is determined to be on an interface disk. It is determined that a context does not exist for the process and, in response, an adapter queue is allocated for the process in a kernel memory and mapped into a process address space associated with the process. The context information of the process is saved in the kernel memory. The filesystem may be part of a system further comprising a processor, a storage, an interface adapter in communication with the storage and sharing a memory space with the processor, and an application in communication with the filesystem.Type: ApplicationFiled: October 31, 2017Publication date: May 2, 2019Inventors: Vinod K. Boddukuri, Phani Kumar V. U. Ayyagari, Venkata N. S. Anumula, Sudhir Maddali, Sanket Rathi, Bruce G. Mealey
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Patent number: 10241956Abstract: An approach to virtualizing a coherent memory hardware accelerator is provided comprising creating a segment table for a client logical partition (LPAR), wherein a virtual address space is reserved in the segment table, receiving an Input/Output (I/O) request to use the coherent memory hardware accelerator, generating an I/O operation associated with the I/O request, wherein the I/O operation is passed to the coherent memory hardware accelerator, receiving a map request from the coherent memory hardware accelerator, creating an entry in the reserved virtual address space in the segment table, creating a hardware page table map request for mapping a memory address associated with the client LPAR and returning the reserved virtual address space to the coherent memory hardware accelerator, wherein the coherent memory hardware accelerator has remote direct memory access to memory associated with the client LPAR for performing an acceleration of one or more processes.Type: GrantFiled: September 12, 2016Date of Patent: March 26, 2019Assignee: International Business Machines CorporationInventors: Venkata N.S. Anumula, Madhusudanan Kandasamy, Sudhir Maddali, Sanket Rathi
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Patent number: 10210133Abstract: An approach to virtualizing a coherent memory hardware accelerator is provided comprising creating a segment table for a client logical partition (LPAR), wherein a virtual address space is reserved in the segment table, receiving an Input/Output (I/O) request to use the coherent memory hardware accelerator, generating an I/O operation associated with the I/O request, wherein the I/O operation is passed to the coherent memory hardware accelerator, receiving a map request from the coherent memory hardware accelerator, creating an entry in the reserved virtual address space in the segment table, creating a hardware page table map request for mapping a memory address associated with the client LPAR and returning the reserved virtual address space to the coherent memory hardware accelerator, wherein the coherent memory hardware accelerator has remote direct memory access to memory associated with the client LPAR for performing an acceleration of one or more processes.Type: GrantFiled: February 6, 2018Date of Patent: February 19, 2019Assignee: International Business Machines CorporationInventors: Venkata N. S. Anumula, Madhusudanan Kandasamy, Sudhir Maddali, Sanket Rathi
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Publication number: 20180329732Abstract: An approach for avoiding overloads of network adapters. The approach receives one or more requests from one or more virtual machines, wherein the one or more requests are directed to one or more network adapters. The approach determines whether a first network adapter of the one or more network adapters is saturated. Responsive to a determination that the first network adapter is saturated, the approach sends a first busy event to a first virtual machine of the one or more virtual machines.Type: ApplicationFiled: May 14, 2018Publication date: November 15, 2018Inventors: Kiran K. Anumalasetty, Venkata N.S. Anumula, Vinod Kumar Boddukuri, Sanket Rathi, Rajaboina Yadagiri
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Publication number: 20180329731Abstract: An approach for avoiding overloads of network adapters. The approach receives one or more requests from one or more virtual machines, wherein the one or more requests are directed to one or more network adapters. The approach determines whether a first network adapter of the one or more network adapters is saturated. Responsive to a determination that the first network adapter is saturated, the approach sends a first busy event to a first virtual machine of the one or more virtual machines.Type: ApplicationFiled: May 15, 2017Publication date: November 15, 2018Inventors: Kiran K. Anumalasetty, Venkata N.S. Anumula, Vinod Kumar Boddukuri, Sanket Rathi, Rajaboina Yadagiri
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Publication number: 20180210665Abstract: Embodiments include systems, methods, and computer program products to perform an operation for enabling multipath I/O for logical volume backed virtual disks through redundant virtual I/O servers (VIOSs) on a computing system. The operation generally includes creating, from a physical storage device, a logical volume on a first VIOS. The logical volume on the first VIOS is activated in a first access mode. The operation also includes importing the logical volume to a second VIOS. The logical volume on the second VIOS is activated in a second access mode different from the first access mode. The operation further includes mapping the logical volume on the first and second VIOSs as a backing storage device for at least one logical partition hosted on the computing system.Type: ApplicationFiled: January 26, 2017Publication date: July 26, 2018Applicant: International Business Machines CorporationInventors: Venkata N.S. ANUMULA, Sudhir MADDALI, Sanket RATHI
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Patent number: 9996373Abstract: An approach for avoiding overloads of network adapters. The approach receives one or more requests from one or more virtual machines, wherein the one or more requests are directed to one or more network adapters. The approach determines whether a first network adapter of the one or more network adapters is saturated. Responsive to a determination that the first network adapter is saturated, the approach sends a first busy event to a first virtual machine of the one or more virtual machines.Type: GrantFiled: September 21, 2017Date of Patent: June 12, 2018Assignee: International Business Machines CorporationInventors: Kiran K. Anumalasetty, Venkata N. S. Anumula, Vinod Kumar Boddukuri, Sanket Rathi, Rajaboina Yadagiri
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Publication number: 20180137080Abstract: An approach to virtualizing a coherent memory hardware accelerator is provided comprising creating a segment table for a client logical partition (LPAR), wherein a virtual address space is reserved in the segment table, receiving an Input/Output (I/O) request to use the coherent memory hardware accelerator, generating an I/O operation associated with the I/O request, wherein the I/O operation is passed to the coherent memory hardware accelerator, receiving a map request from the coherent memory hardware accelerator, creating an entry in the reserved virtual address space in the segment table, creating a hardware page table map request for mapping a memory address associated with the client LPAR and returning the reserved virtual address space to the coherent memory hardware accelerator, wherein the coherent memory hardware accelerator has remote direct memory access to memory associated with the client LPAR for performing an acceleration of one or more processes.Type: ApplicationFiled: February 6, 2018Publication date: May 17, 2018Inventors: Venkata N.S. Anumula, Madhusudanan Kandasamy, Sudhir Maddali, Sanket Rathi
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Publication number: 20180074994Abstract: An approach to virtualizing a coherent memory hardware accelerator is provided comprising creating a segment table for a client logical partition (LPAR), wherein a virtual address space is reserved in the segment table, receiving an Input/Output (I/O) request to use the coherent memory hardware accelerator, generating an I/O operation associated with the I/O request, wherein the I/O operation is passed to the coherent memory hardware accelerator, receiving a map request from the coherent memory hardware accelerator, creating an entry in the reserved virtual address space in the segment table, creating a hardware page table map request for mapping a memory address associated with the client LPAR and returning the reserved virtual address space to the coherent memory hardware accelerator, wherein the coherent memory hardware accelerator has remote direct memory access to memory associated with the client LPAR for performing an acceleration of one or more processes.Type: ApplicationFiled: September 12, 2016Publication date: March 15, 2018Inventors: Venkata N.S. Anumula, Madhusudanan Kandasamy, Sudhir Maddali, Sanket Rathi
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Publication number: 20150212913Abstract: A method for providing small computer system interface inband of storage area network computing environment is provided. The method comprises selecting signals of a primary path group that corresponds to a primary logical unit number of a primary device of a storage area network computing environment. The method further comprises detecting signal failures of the primary path group that corresponds to the primary logical unit number. The method further comprises initiating failover of the failed signals of the primary logical unit number from the primary device to a secondary logical unit number of a secondary device or a tertiary logical unit number of a tertiary device. The method further comprises registering, one or more applications of the storage area network computing environment for failover event notifications based on signal failures of the primary logical unit number of the primary device.Type: ApplicationFiled: January 28, 2014Publication date: July 30, 2015Applicant: International Business Machines CorporationInventors: Kiran K. Anumalasetty, Venkata N.S. Anumula, Gary S. Domrow, Nicholas S. Ham
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Publication number: 20150212912Abstract: A computer system for providing small computer system interface inband of storage area network computing environment is provided. The computer system comprises selecting signals of a primary path group that corresponds to a primary logical unit number of a primary device of a storage area network computing environment. The computer system further comprises detecting signal failures of the primary path group that corresponds to the primary logical unit number. The computer system further comprises initiating failover of the failed signals of the primary logical unit number from the primary device to a secondary logical unit number of a secondary device or a tertiary logical unit number of a tertiary device. The computer system further comprises registering, one or more applications of the storage area network computing environment for failover event notifications based on signal failures of the primary logical unit number of the primary device.Type: ApplicationFiled: June 18, 2014Publication date: July 30, 2015Inventors: Kiran K. Anumalasetty, Venkata N.S. Anumula, Gary S. Domrow, Nicholas S. Ham