Patents by Inventor Ilia Langouev
Ilia Langouev 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: 11960450Abstract: The efficiency of segment cleaning for a log-structured file system (LFS) is enhanced at least by storing additional information in a segment usage table (SUT). Live blocks (representing portions of stored objects) in an LFS are determined based at least on the SUT. Chunk identifiers associated with the live blocks are read. The live blocks are coalesced at least by writing at least a portion of the live blocks into at least one new segment. A blind update of at least a portion of the chunk identifiers in a chunk map is performed to indicate the new segment. The blind update includes writing to the chunk map without reading from the chunk map. In some examples, the objects comprise virtual machine disks (VMDKs) and the SUT changes between a list format and a bitmap format, to minimize size.Type: GrantFiled: August 21, 2020Date of Patent: April 16, 2024Assignee: VMware, Inc.Inventors: Wenguang Wang, Ilia Langouev, Vamsi Gunturu, Junlong Gao
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Patent number: 11436102Abstract: Solutions for managing archived storage include receiving, at a first node, a snapshot comprising object data (e.g., a virtual machine disk snapshot) from a second node (e.g., a software defined data center), and storing the snapshot in a tiered structure that includes a data tier and a metadata tier. Snapshots may be used for fail-over operations and/or backups, to support disaster recovery. The data tier comprises a log-structured file system (LFS), and the metadata tier comprises a content addressable storage (CAS) identifying addresses within the LFS. The metadata tier also comprises a logical layer indicating content in the CAS. Segment cleaning of the data tier is performed using a segment usage table (SUT). Some examples include performing a fail-over operation from the second node to a third node using at least the stored snapshot for workload recovery. In some examples, the CAS comprises a log-structured merge-tree (LSM-tree).Type: GrantFiled: August 20, 2020Date of Patent: September 6, 2022Assignee: VMware, Inc.Inventors: Vamsi Gunturu, Wenguang Wang, Junlong Gao, Ilia Langouev, Petr Vandrovec, Maxime Austruy, Ilia Sokolinski, Satish Pudi
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Publication number: 20220058161Abstract: The efficiency of segment cleaning for a log-structured file system (LFS) is enhanced at least by storing additional information in a segment usage table (SUT). Live blocks (representing portions of stored objects) in an LFS are determined based at least on the SUT. Chunk identifiers associated with the live blocks are read. The live blocks are coalesced at least by writing at least a portion of the live blocks into at least one new segment. A blind update of at least a portion of the chunk identifiers in a chunk map is performed to indicate the new segment. The blind update includes writing to the chunk map without reading from the chunk map. In some examples, the objects comprise virtual machine disks (VMDKs) and the SUT changes between a list format and a bitmap format, to minimize size.Type: ApplicationFiled: August 21, 2020Publication date: February 24, 2022Inventors: Wenguang Wang, Ilia Langouev, Vamsi Gunturu, Junlong Gao
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Publication number: 20220058094Abstract: Solutions for managing archived storage include receiving, at a first node, a snapshot comprising object data (e.g., a virtual machine disk snapshot) from a second node (e.g., a software defined data center), and storing the snapshot in a tiered structure that includes a data tier and a metadata tier. Snapshots may be used for fail-over operations and/or backups, to support disaster recovery. The data tier comprises a log-structured file system (LFS), and the metadata tier comprises a content addressable storage (CAS) identifying addresses within the LFS. The metadata tier also comprises a logical layer indicating content in the CAS. Segment cleaning of the data tier is performed using a segment usage table (SUT). Some examples include performing a fail-over operation from the second node to a third node using at least the stored snapshot for workload recovery. In some examples, the CAS comprises a log-structured merge-tree (LSM-tree).Type: ApplicationFiled: August 20, 2020Publication date: February 24, 2022Inventors: Vamsi Gunturu, Wenguang Wang, Junlong Gao, Ilia Langouev, Petr Vandrovec, Maxime Austruy, Ilia Sokolinski, Satish Pudi
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Patent number: 10719274Abstract: Virtual computing instance data that are stored across multiple storage volumes are replicated in a manner such that the write order is maintained. The frequency of the replication is set so that the recovery point objective defined for the VM data can be satisfied. The replication includes the steps of determining a set of logical storage volumes across which the virtual computing instance issues dependent write IOs, issuing a first command to the virtual computing instance to block new IOs and to block receipt of IO acknowledgements, issuing a command to create replicas of all the logical storage volumes in the set, and then issuing a second command to the virtual computing instance to unblock new IOs and unblock receipt of IO acknowledgements.Type: GrantFiled: May 9, 2018Date of Patent: July 21, 2020Assignee: VMware, Inc.Inventors: Sudarsan R. Piduri, Ilia Langouev
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Patent number: 10616313Abstract: Examples perform monitoring of multiple-step, concurrently executed workflows across distributed nodes. Requests from an intermediate node are classified by a load balancer as monitoring or non-monitoring. Non-monitoring requests are handled by any node; however, monitoring requests are distributed to all nodes via a plurality of queues but handled only by nodes executing the subject workflow. The load balancer receives reports from any node executing the subject workflow, and passes the first report to the intermediate node.Type: GrantFiled: June 22, 2018Date of Patent: April 7, 2020Assignee: VMware, Inc.Inventors: Bin Wang, Ilia Langouev, Aleksey Pershin
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Patent number: 10481987Abstract: Exemplary methods, apparatuses, and systems include a recovery manager receiving selection of a storage profile to be protected. The storage profile is an abstraction of a set of one or more logical storage devices that are treated as a single entity based upon common storage capabilities. In response to the selection of the storage profile to be protected, a set of virtual datacenter entities associated with the storage profile is added to a disaster recovery plan to automate a failover of the set of virtual datacenter entities from a protection site to a recovery site. The set of one or more virtual datacenter entities includes one or more virtual machines, one or more logical storage devices, or a combination of virtual machines and logical storage devices. The set of virtual datacenter entities is expandable and interchangeable with other virtual datacenter entities.Type: GrantFiled: November 13, 2017Date of Patent: November 19, 2019Assignee: VMware, Inc.Inventors: Ryan David Gallagher, Ilia Langouev, Glenn Bruce McElhoe, Aleksey Pershin, Sudarsan Piduri
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Patent number: 10394656Abstract: Examples perform live migration of VMs from a source host to a destination host using destructive consistency breaking operations. The disclosure makes a record of a consistency group of VMs on storage at a source host as a fail-back in the event of failure. The source VMs are live migrated to the destination host, disregarding consistency during live migration, and potentially violating the recovery point objective. After live migration of all of the source VMs, consistency is automatically restored at the destination host and the live migration is declared a success.Type: GrantFiled: September 12, 2017Date of Patent: August 27, 2019Assignee: VMware, inc.Inventors: Gabriel Tarasuk-Levin, Patrick William Penzias Dirks, Ilia Langouev, Curt Kolovson
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Patent number: 10394668Abstract: Examples maintain consistency of writes for a plurality of VMs during live migration of the plurality from a source host to a destination host. The disclosure intercepts I/O writes to a migrated VM at a destination host and mirrors the I/O writes back to the source host. This “reverse replication” ensures that the CG of the source host is up to date, and that the source host is safe to fail back to if the migration fails.Type: GrantFiled: June 1, 2017Date of Patent: August 27, 2019Assignee: VMware, Inc.Inventors: Gabriel Tarasuk-Levin, Patrick William Penzias Dirks, Ilia Langouev, Curt Kolovson
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Patent number: 10360086Abstract: A cloud availability manager configured to execute a recovery workflow that fails over one or more virtual machines (VMs) to and from a cloud computing system. In doing so, the cloud availability manager typically performs multiple operations for each VMs. The operations involve making several application programming interface (API) calls to component APIs of management components within the cloud computing system. To avoid bringing down the entire cloud infrastructure, the cloud availability manager throttles the API calls to other components while executing a recovery workflow. The throttling spans multiple instances (nodes) of the cloud availability manager and involves cooperation from the other management components to ensure the throttling is fair across all tenants of the cloud computing system.Type: GrantFiled: August 28, 2015Date of Patent: July 23, 2019Assignee: VMware, Inc.Inventors: Ilia Langouev, Victor V. Golosovker, Aleksey Pershin, Bin Wang
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Publication number: 20180302467Abstract: Examples perform monitoring of multiple-step, concurrently executed workflows across distributed nodes. Requests from an intermediate node are classified by a load balancer as monitoring or non-monitoring. Non-monitoring requests are handled by any node; however, monitoring requests are distributed to all nodes via a plurality of queues but handled only by nodes executing the subject workflow. The load balancer receives reports from any node executing the subject workflow, and passes the first report to the intermediate node.Type: ApplicationFiled: June 22, 2018Publication date: October 18, 2018Inventors: Bin WANG, Ilia LANGOUEV, Aleksey PERSHIN
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Publication number: 20180260128Abstract: Virtual computing instance data that are stored across multiple storage volumes are replicated in a manner such that the write order is maintained. The frequency of the replication is set so that the recovery point objective defined for the VM data can be satisfied. The replication includes the steps of determining a set of logical storage volumes across which the virtual computing instance issues dependent write IOs, issuing a first command to the virtual computing instance to block new IOs and to block receipt of TO acknowledgements, issuing a command to create replicas of all the logical storage volumes in the set, and then issuing a second command to the virtual computing instance to unblock new IOs and unblock receipt of TO acknowledgements.Type: ApplicationFiled: May 9, 2018Publication date: September 13, 2018Inventors: Sudarsan R. Piduri, Ilia Langouev
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Patent number: 10075514Abstract: Examples perform monitoring of multiple-step, concurrently executed workflows across distributed nodes. Requests from an intermediate node are classified by a load balancer as monitoring or non-monitoring. Non-monitoring requests are handled by any node; however, monitoring requests are distributed to all nodes via a plurality of queues but handled only by nodes executing the subject workflow. The load balancer receives reports from any node executing the subject workflow, and passes the first report to the intermediate node.Type: GrantFiled: August 28, 2015Date of Patent: September 11, 2018Assignee: VMware, Inc.Inventors: Bin Wang, Ilia Langouev, Aleksey Pershin
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Patent number: 9990161Abstract: Virtual computing instance data that are stored across multiple storage volumes are replicated in a manner such that the write order is maintained. The frequency of the replication is set so that the recovery point objective defined for the VM data can be satisfied. The replication includes the steps of determining a set of logical storage volumes across which the virtual computing instance issues dependent write IOs, issuing a first command to the virtual computing instance to block new IOs and to block receipt of IO acknowledgements, issuing a command to create replicas of all the logical storage volumes in the set, and then issuing a second command to the virtual computing instance to unblock new IOs and unblock receipt of IO acknowledgements.Type: GrantFiled: December 17, 2014Date of Patent: June 5, 2018Assignee: VMware, Inc.Inventors: Sudarsan R. Piduri, Ilia Langouev
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Publication number: 20180074908Abstract: Examples perform live migration of VMs from a source host to a destination host using destructive consistency breaking operations. The disclosure makes a record of a consistency group of VMs on storage at a source host as a fail-back in the event of failure. The source VMs are live migrated to the destination host, disregarding consistency during live migration, and potentially violating the recovery point objective. After live migration of all of the source VMs, consistency is automatically restored at the destination host and the live migration is declared a success.Type: ApplicationFiled: September 12, 2017Publication date: March 15, 2018Inventors: Gabriel TARASUK-LEVIN, Patrick William Penzias DIRKS, Ilia LANGOUEV, Curt KOLOVSON
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Publication number: 20180067827Abstract: Exemplary methods, apparatuses, and systems include a recovery manager receiving selection of a storage profile to be protected. The storage profile is an abstraction of a set of one or more logical storage devices that are treated as a single entity based upon common storage capabilities. In response to the selection of the storage profile to be protected, a set of virtual datacenter entities associated with the storage profile is added to a disaster recovery plan to automate a failover of the set of virtual datacenter entities from a protection site to a recovery site. The set of one or more virtual datacenter entities includes one or more virtual machines, one or more logical storage devices, or a combination of virtual machines and logical storage devices. The set of virtual datacenter entities is expandable and interchangeable with other virtual datacenter entities.Type: ApplicationFiled: November 13, 2017Publication date: March 8, 2018Inventors: Ryan David GALLAGHER, Ilia LANGOUEV, Glenn Bruce MCELHOE, Aleksey PERSHIN, Sudarsan PIDURI
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Patent number: 9898320Abstract: Examples perform live migration of objects such as VMs from a source host to a destination host. The disclosure exposes the contents of the storage disk at the destination host, compares the storage disk of the destination host to the source host, and during migration, migrates only data which is not already stored at the destination host. The source and destination VMs have concurrent access to storage disks during migration. After migration, the destination VM executes, with exclusive access to the storage disks.Type: GrantFiled: June 26, 2015Date of Patent: February 20, 2018Assignee: VMware, Inc.Inventors: Gabriel Tarasuk-Levin, Patrick William Penzias Dirks, Ilia Langouev, Curt Kolovson
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Patent number: 9817722Abstract: Exemplary methods, apparatuses, and systems include a recovery manager receiving selection of a storage profile to be protected. The storage profile is an abstraction of a set of one or more logical storage devices that are treated as a single entity based upon common storage capabilities. In response to the selection of the storage profile to be protected, a set of virtual datacenter entities associated with the storage profile is added to a disaster recovery plan to automate a failover of the set of virtual datacenter entities from a protection site to a recovery site. The set of one or more virtual datacenter entities includes one or more virtual machines, one or more logical storage devices, or a combination of virtual machines and logical storage devices. The set of virtual datacenter entities is expandable and interchangeable with other virtual datacenter entities.Type: GrantFiled: August 29, 2014Date of Patent: November 14, 2017Assignee: VMware, Inc.Inventors: Ryan David Gallagher, Ilia Langouev, Glenn Bruce McElhoe, Aleksey Pershin, Sudarsan Piduri
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Publication number: 20170270012Abstract: Examples maintain consistency of writes for a plurality of VMs during live migration of the plurality from a source host to a destination host. The disclosure intercepts I/O writes to a migrated VM at a destination host and mirrors the I/O writes back to the source host. This “reverse replication” ensures that the CG of the source host is up to date, and that the source host is safe to fail back to if the migration fails.Type: ApplicationFiled: June 1, 2017Publication date: September 21, 2017Inventors: Gabriel TARASUK-LEVIN, Patrick William Penzias DIRKS, Ilia LANGOUEV, Curt KOLOVSON
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Patent number: 9766930Abstract: The disclosure describes performing live migration of objects such as virtual machines (VMs) from a source host to a destination host. The disclosure changes the storage environment, directly or through a vendor provider, to active/passive synchronous or near synchronous and, during migration, migrates only data which has not already been replicated at the destination host. The source and destination VMs have concurrent access to storage disks during migration. After migration, the destination VM executes with exclusive access to the storage disks, and the system is returned to the previous storage environment of active/passive asynchronous.Type: GrantFiled: June 26, 2015Date of Patent: September 19, 2017Assignee: VMware, Inc.Inventors: Gabriel Tarasuk-Levin, Patrick William Penzias Dirks, Ilia Langouev, Curt Kolovson