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1. 发明申请

WO2022072993A1 ZONE HINTS FOR ZONED NAMESPACE STORAGE DEVICES 审中-公开
公开(公告)号：WO2022072993A1
公开(公告)日：2022-04-07
申请号：PCT/US2021/071615
申请日：2021-09-28
申请人： MICROSOFT TECHNOLOGY LICENSING, LLC
发明人： LEE, Scott Chao-Chueh , MAKHERVAKS, Vadim , PANDYA, Madhav Himanshubhai , OLTEAN, Ioan , CAULFIELD, Laura Marie , PREWITT, Lee Edward
IPC分类号： G06F12/02
摘要： Zone hints for use with a zoned namespace (ZNS) storage device. Zone hints include one or more of a first hint indicating that a zone is part of a group of a plurality of zones, a second hint indicating that the zone is to be fast-filled, or a third hint indicating that the zone is associated with a background operation. The first hint is structured to instruct the ZNS storage device to allocate to the zone a first storage resources that are physically adjacent to second storage resources reserved for others of the plurality of zones. The second hint is structured to instruct the ZNS storage device to bypass a staging area when writing to the zone. The third hint is structured to instruct the ZNS storage device to deprioritizing at least one operation writing to the zone, or to bypass the staging area when writing to the zone.

2. 发明申请

WO2015123072A2 IN-PLACE DISK UNFORMATTING 审中-公开
标题翻译：内置磁盘保护
公开(公告)号：WO2015123072A2
公开(公告)日：2015-08-20
申请号：PCT/US2015/014530
申请日：2015-02-05
申请人： MICROSOFT TECHNOLOGY LICENSING, LLC
发明人： GOEBEL, David, Allen , OLTEAN, Ioan
IPC分类号： G06F11/14
CPC分类号： G06F11/1448 , G06F11/1435
摘要： Various methods and systems for in-place unformatting of disks are provided. The system includes a preparation component configured for creating a backup file on the disk and a preformatting component for using the backup file to occupy a predetermined location that defines a backup zone on the disk. The backup file is a space-holder such that the preformatting component copies primal data and file table data to the backup zone. The system further includes a formatting component for formatting the disk storing the primal data and the file table and an unformatting component that copies the primal data and file table data from the backup zone back to their original locations to unformat the disk to a preformat configuration. A safeguard component may also be implemented to ensure that the preformat component is invoked before the format component if the preparation component was executed on a volume.
摘要翻译：提供了用于就地取消格式化格式的各种方法和系统。该系统包括配置用于在磁盘上创建备份文件的准备部件和用于使用备份文件占据在盘上定义备份区域的预定位置的预格式化组件。备份文件是一个空格位，以便预格式化组件将原始数据和文件表数据复制到备份区。该系统还包括用于格式化存储原始数据和文件表的磁盘的格式化组件和将原始数据和文件表数据从备份区域复制回其原始位置的非格式化组件，以将磁盘格式化为预格式化配置。还可以实现一个保护组件，以确保在一个卷上执行准备组件之前，格式化组件之前调用预格式化组件。

3. 发明申请

WO2019160727A1 APPEND ONLY STREAMS FOR STORING DATA ON A SOLID STATE DEVICE 审中-公开
公开(公告)号：WO2019160727A1
公开(公告)日：2019-08-22
申请号：PCT/US2019/016940
申请日：2019-02-07
申请人： MICROSOFT TECHNOLOGY LICENSING, LLC
发明人： MATTHEW, Bryan S. , OGUS, Aaron W. , MAKHERVAKS, Vadim , CAULFIELD, Laura M. , DAS, Rajsekhar , LEE, Scott Chao-Chueh , CAREY, Omar , PANDYA, Madhav , OLTEAN, Ioan , BUBAN, Garret , PREWITT, Lee
IPC分类号： G06F3/06 , G06F12/02
摘要： An append-only streams capability may be implemented that allows the host (e.g., the file system) to determine an optimal stream size based on the data to be stored in that stream. The storage device may expose to the host one or more characteristics of the available streams on the device, including but not limited to the maximum number of inactive and active streams on the device, the erase block size, the maximum number of erase blocks that can be written in parallel, and an optimal write size of the data. Using this information, the host may determine which particular stream offered by the device is best suited for the data to be stored.

4. 发明申请

WO2019231646A1 GARBAGE COLLECTION IMPLEMENTING ERASURE CODING 审中-公开
公开(公告)号：WO2019231646A1
公开(公告)日：2019-12-05
申请号：PCT/US2019/031933
申请日：2019-05-13
申请人： MICROSOFT TECHNOLOGY LICENSING, LLC
发明人： OLTEAN, Ioan , SURLA, Rushi Srinivas , DEVARAJU, Jegan , SAH, Maneesh , JOHNSTONE, Julia
IPC分类号： G06F3/06 , G06F12/02
摘要： Provided is a system and method for converting active data identified by a garbage collection operation into erasure coded fragments. In one example, the method may include identifying data blocks in use and interspersed among garbage data blocks not in use in cloud storage based on a garbage collection operation, extracting object data from the identified data blocks in use into a data container while leaving object data of the garbage data blocks not in use, and fragmenting a predetermined amount of extracted object data stored within the data container, the fragmenting comprising converting the predetermined amount of object data into a plurality of fragments including data fragments storing portions of the data and parity fragments for reconstructing the data, and writing the plurality of fragments in a distributed manner among a plurality of storage nodes.

5. 发明申请

WO2017165820A1 HYBRID GARBAGE COLLECTION IN A DISTRUBUTED STORAGE SYSTEM 审中-公开
标题翻译：分布式存储系统中的混合垃圾收集
公开(公告)号：WO2017165820A1
公开(公告)日：2017-09-28
申请号：PCT/US2017/024103
申请日：2017-03-24
申请人： MICROSOFT TECHNOLOGY LICENSING, LLC
发明人： HUANG, Cheng , EDWARDS, Andrew James , MAINALI, Shane K. , OGUS, Aaron William , OLTEAN, Ioan , SIMITCI, Huseyin , WANG, Ju , CALDER, Bradley Gene , XU, Yikang
IPC分类号： G06F12/02 , G06F3/06
CPC分类号： G06F16/215 , G06F3/0616 , G06F3/064 , G06F3/067 , G06F12/0253 , G06F2212/154 , G06F2212/261 , H04L43/16 , H04L67/02 , H04L67/1097
摘要： Various embodiments for implementing garbage collection in distributed storage systems are provided. A distributed storage system operates based on independent management of metadata of extent and stream data storage resources. A hybrid garbage collection system based on reference counting garbage collection operations and mark-and-sweep garbage collection operations is implemented. An extent lifetime table that tracks reference weights and mark sequences for extents is initialized and updated based on indications from extent managers and stream managers, respectively. Upon determining that an extent is to be handed-off from weighted reference counting garbage collection operations to mark-and-sweep garbage collection operations, a reference weight field for the extent is voided and a mark sequence field of the extent is updated. The mark sequence field is updated with a latest global sequence number. Mark-and-sweep garbage collection operations are utilized to reclaim the extent when it is no longer referenced.
摘要翻译：提供了用于在分布式存储系统中实现垃圾收集的各种实施例。分布式存储系统基于范围和流数据存储资源的元数据的独立管理而运行。实现了基于引用计数垃圾收集操作和标记扫描垃圾收集操作的混合垃圾收集系统。跟踪参考权重和范围的标记序列的范围生命周期表分别基于范围管理者和流管理者的指示进行初始化和更新。在确定要从加权引用计数垃圾收集操作切换到标记和扫描垃圾收集操作的范围时，用于该范围的参考权重字段被废弃并且范围的标记序列字段被更新。标记序列字段用最新的全局序列号更新。使用标记和清理垃圾收集操作来收回不再被引用的范围。

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