公开(公告)号：US20180006963A1

公开(公告)日：2018-01-04

申请号：US15197557

申请日：2016-06-29

Applicant: Amazon Technologies, Inc.

Inventor： Pieter Kristian Brouwer ,  Marc Stephen Olson ,  Nachiappan Arumugam ,  Michael Thacker ,  Vijay Prasanth Rajavenkateswaran ,  Arpit Tripathi ,  Danny Wei

IPC: H04L12/927 ,  H04L12/911

CPC classification number: H04L47/801

Abstract: A user can set or modify operational parameters of a data volume stored on a network-accessible storage device in a data center. For example, the user may be provided access to a data volume and may request a modification to the operational parameters of the data volume. Instead of modifying the existing data volume, the data center can provision a new data volume and migrate data stored on the existing data volume to the new data volume. While the data migration takes place, the existing data volume may block input/output (I/O) requests and the new data volume may handle such requests instead. Once the data migration is complete, the data center may deallocate the data blocks of the existing data volume such that the data blocks can be reused by other data volumes.

公开(公告)号：US20180004698A1

公开(公告)日：2018-01-04

申请号：US15197573

申请日：2016-06-29

Applicant: Amazon Technologies, Inc.

Inventor： Pieter Kristian Brouwer ,  Marc Stephen Olson ,  Nachiappan Arumugam ,  Michael Thacker ,  Vijay Prasanth Rajavenkateswaran ,  Arpit Tripathi ,  Danny Wei

IPC: G06F13/42 ,  G06F13/40

CPC classification number: G06F13/4221 ,  G06F13/4068

Abstract: A user can set or modify operational parameters of a data volume stored on a network-accessible storage device in a data center. For example, the user may be provided access to a data volume and may request a modification to the operational parameters of the data volume. Instead of modifying the existing data volume, the data center can provision a new data volume and migrate data stored on the existing data volume to the new data volume. While the data migration takes place, the existing data volume may block input/output (I/O) requests and the new data volume may handle such requests instead. If a request is received for data not yet migrated to the new data volume, then the new data volume prioritizes a migration of the requested data.

公开(公告)号：US09753813B1

公开(公告)日：2017-09-05

申请号：US14866655

申请日：2015-09-25

Applicant: Amazon Technologies, Inc.

Inventor： Jianhua Fan ,  Benjamin Arthur Hawks ,  Norbert Paul Kusters ,  Nachiappan Arumugam ,  Danny Wei ,  John Luther Guthrie, II

IPC: G06F11/14 ,  G06F3/06

CPC classification number: G06F11/1448 ,  G06F3/0605 ,  G06F3/0619 ,  G06F3/065 ,  G06F3/067 ,  G06F3/0689 ,  G06F11/1464 ,  G06F11/1471 ,  G06F2201/84

Abstract: Persistent storage for a master copy is provided using operation numbers. A master copy can include a persistent key-value store such as a B-tree with references to corresponding data. When provisioning a slave copy, the master copy sends a point-in-time copy of the B-tree to the slave copy, which stores a copy of the B-tree, allocates the necessary space, and updates the references of the B-tree to point to a local storage before the data is transferred. When writing the data to persistent storage, a snapshot created on the master copy is an operation that is replicated to the slave copy. The snapshot is generated using a volume view that includes changes to chunks of data of the master copy since a previous snapshot, as determined using the operation number for the previous snapshot. Data (and metadata) for the snapshot is written to persistent storage while new EO operations are processed.