-
公开(公告)号：US20190065062A1
公开(公告)日：2019-02-28
申请号：US15853202
申请日：2017-12-22
Applicant: VMware, Inc.
Inventor： Eric KNAUFT , Mansi SHAH , Jin ZHANG , Christian DICKMANN , Pascal RENAULD , Radhika VULLIKANTI , Christos KARAMANOLIS
Abstract: In a storage cluster having nodes, blocks of a logical storage space of a storage object are allocated flexibly by a parent node to component nodes that are backed by physical storage. The method includes maintaining a first allocation map for the parent node, and second and third allocation maps for the first and second component nodes, respectively, executing a first write operation on the first component node and updating the second allocation map to indicate that the first block is a written block, and upon detecting that the first component node is offline, executing a second write operation that targets a second block of the logical storage space, which is allocated to the first component node, on the second component node and updating the third allocation map to indicate that the second block is a written block.
-
公开(公告)号：US20190026303A1
公开(公告)日：2019-01-24
申请号：US15652572
申请日：2017-07-18
Applicant: VMware, Inc.
Inventor： Jorge GUERRA DELGADO , Eric KNAUFT , Gopala SURYANARAYANA , Sandeep RANGASWAMY , Srinath PREMACHANDRAN
Abstract: Exemplary methods, apparatuses, and systems include a destination node receiving, from a source node, a hash of data stored by the source node and designated for transfer from the source node to the destination node. In response to determining the hash received from the source node maps to data stored by the destination node, the destination node reads the data into a write buffer and transmits an indication to the source node that the data is present at the source node. The destination node reads the data from write buffer and, in response to determining the data read from the write buffer remains unchanged as stored by the destination node, increases a reference count for the data as stored by the destination node.
-
公开(公告)号：US20180060193A1
公开(公告)日：2018-03-01
申请号：US15255063
申请日：2016-09-01
Applicant: VMware, Inc.
Inventor： Eric KNAUFT , Edward Joseph GOGGIN , Ruocheng LI , Radhika VULLIKANTI , Gopala SURYANARAYANA
CPC classification number: G06F3/0647 , G06F11/008 , G06F11/1076
Abstract: Exemplary methods, apparatuses, and systems determine that a disk drive in a distributed storage system is failing. In response to determining that the disk drive is failing, it is determined if an object has object components stored on the failing disk drive. Object components are flagged based on whether the object components will become inaccessible in the event the disk drive fails or is unmounted. Object components that are flagged with an evacuate flag are migrated from the failing disk drive to one or more other disk drives in the distributed storage system to prevent objects from becoming inaccessible.
-
公开(公告)号：US20250028679A1
公开(公告)日：2025-01-23
申请号：US18356129
申请日：2023-07-20
Applicant: VMware, Inc.
Inventor： Maxime AUSTRUY , Eric KNAUFT , Sriram PATIL , Abhay Kumar JAIN , Wenguang WANG
Abstract: An example method of managing a log-structured file system (LFS) on a storage device includes: receiving, at storage software executing on a host, an operation that overwrites a data block, the data block included in a segment of the LFS; determining from first metadata stored on the storage device, a change in utilization of the segment from a first utilization value to a second utilization value; modifying second metadata stored on the storage device to change a relation between the segment and a first bucket to be a relation between the segment and a second bucket, the first utilization value included in a range of the first bucket and the second utilization value included in a range of the second bucket; and executing a garbage collection process for the LFS that uses the second metadata to identify for garbage collection a set of segments in the second bucket.
-
公开(公告)号：US20250028471A1
公开(公告)日：2025-01-23
申请号：US18356125
申请日：2023-07-20
Applicant: VMware, Inc.
Inventor： Venkata RAMANAN , Eric KNAUFT , Pascal RENAULD , Sandeep RANGASWAMY , Sudheer THOKALA
IPC: G06F3/06
Abstract: An example method of resynchronizing a first replica of an object and a second replica of an object in an object storage system, includes: determining, by storage software in response to the second replica transitioning from failed to available, a stale sequence number for the second replica, the storage software having associated the stale sequence number with the second replica when the second replica failed; querying, by the storage software, block-level metadata for the object using the stale sequence number, the block-level metadata relating logical blocks of the object with sequence numbers for operations on the object; determining, by the software as a result of the querying, a set of the logical blocks each related to a sequence number being the same or after the stale sequence number; and copying, by the storage software, data of the set of logical blocks from the first replica to the second replica.
-
Patent Agency Ranking
公开(公告)号：US20240070080A1
公开(公告)日：2024-02-29
申请号：US17900642
申请日：2022-08-31
Applicant: VMware, Inc.
Inventor： Wenguang WANG , Yanxing PAN , Junlong GAO , Mounesh BADIGER , Eric KNAUFT , Vamsidhar GUNTURU
IPC: G06F12/0864
CPC classification number: G06F12/0864 , G06F2212/1016 , G06F2212/604
Abstract: The disclosure describes growing a data cache using a background hash bucket growth process. A first memory portion is allocated to the data buffer of the data cache and a second memory portion is allocated to the metadata buffer of the data cache based on the cache growth instruction. The quantity of hash buckets in the hash bucket buffer is increased and the background hash bucket growth process is initiated, wherein the process is configured to rehash hash bucket entries of the hash bucket buffer in the increased quantity of hash buckets. A data entry is stored in the data buffer using the allocated first memory portion of the data cache and metadata associated with the data entry is stored using the allocated second memory portion of the metadata buffer, wherein a hash bucket entry associated with the data entry is stored in the increased quantity of hash buckets.
-
17.发明申请公开(公告)号：US20220334859A1
公开(公告)日：2022-10-20
申请号：US17231386
申请日：2021-04-15
Applicant: VMware, Inc.
Inventor： Yiqi XU , Xin LI , Eric KNAUFT
Abstract: An example method of coordinating threads executing in a host cluster in a virtualized computing system is described. The host cluster includes hosts connected to a network. The method includes: assigning objects to owner threads of an owner executing in a first host of the hosts, the objects mapped to virtual resources attached to virtual machines (VMs) executing in the host cluster; assigning components of the objects to component threads executing in a second host of the hosts based on thread indexes of the owner threads, the component threads managing physical resources backing the virtual resources; and establishing connections through the network between the owner threads and the component threads.
-
公开(公告)号：US20220171685A1
公开(公告)日：2022-06-02
申请号：US17106004
申请日：2020-11-27
Applicant: VMware, Inc.
Inventor： Enning XIANG , Ojan THORNYCROFT , Varun SHAH , Eric KNAUFT , Asit DESAI , Yiqi XU
Abstract: The disclosure herein describes placing delta components of a base component in target fault domains. One or more delta components are generated. When a first fault domain that lacks a sibling component of the base component is identified, the first fault domain is selected as a single delta target fault domain and a single delta component is placed on the single delta target fault domain. When a second fault domain that includes a first sibling component of the base component is identified and a third fault domain that includes a second sibling component of the base component is identified, the second fault domain and the third fault domain are selected as a first double delta target fault domain and a second double delta target fault domain, and a first double delta component and a second double delta component are placed on the first and second double delta target fault domains.
-
公开(公告)号：US20220066950A1
公开(公告)日：2022-03-03
申请号：US17002649
申请日：2020-08-25
Applicant: VMware, Inc.
Inventor： Wenguang WANG , Eric KNAUFT , Vamsi GUNTURU
Abstract: A method for encrypting data blocks is provided. The method receives a plurality of data blocks and encrypts each data block using an LBA of the data block as a tweak. The method writes the plurality of encrypted data blocks to physical blocks of the plurality of physical disks. The method then performs deduplication on the physical disks by determining that first and second physical blocks in the physical disks are duplicates, decrypting encrypted data in the first physical block using a first LBA associated with the first physical block as the tweak, and re-encrypting decrypted data in the first physical block using a PBA associated with the first physical block as the tweak. When reading the data back, either the LBA or PBA is used as the tweak, depending on whether the data was encrypted using LBA or re-encrypted using PBA during the deduplication process.
-
公开(公告)号：US20210266268A1
公开(公告)日：2021-08-26
申请号：US17320145
申请日：2021-05-13
Applicant: VMware, Inc.
Inventor： Christos KARAMANOLIS , William EARL , Eric KNAUFT , Pascal RENAULD
IPC: H04L12/911 , H04L29/08 , G06F12/0802
Abstract: Embodiments of the disclosure provide techniques for partitioning a resource object into multiple resource components of a cluster of host computer nodes in a distributed resources system. The distributed resources system translates high-level policy requirements into a resource configuration that the system accommodates. The system determines an allocation based on the policy requirements and identifies resource configurations that are available. Upon selecting a resource configuration, the distributed resources system assigns the allocation and associated values to the selected configuration and publishes the new configuration to other host computer nodes in the cluster.
-
-
-
-
-
-
-
-
-
Search Results
42
records
(took 0.019 seconds)
