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1. 发明申请

US20200012456A1 STALE BLOCK RESYNCHRONIZATION IN NVM BASED SYSTEMS 审中-公开
公开(公告)号：US20200012456A1
公开(公告)日：2020-01-09
申请号：US16026785
申请日：2018-07-03
申请人： Oracle International Corporation
发明人： Samarjeet Tomar , Prasad V. Bagal , Saurabh Manchanda , James Aubrey Williams
IPC分类号： G06F3/06 , G06F9/455
摘要： A shared storage architecture persistently stores database files in non-volatile memories (NVMs) of a plurality of computing nodes of a multi-node DBMS. The computing nodes of the multi-node DBMS store data blocks in NVM and each computing node of the DBMS stores copies of each data block stored on the plurality of computing nodes. A computing node that disconnects and subsequently rejoins the DBMS employs an on-demand approach to resilvering stale data blocks that have been updated in other computing nodes in the DBMS while the computing node was offline. A data block may be resilvered on-demand based on an I/O request for a specific data block from a workload running on the reconnected computing node. Stale data blocks on the reconnected computing node are not resilvered unless they are accessed by the workload.

2. 发明申请

US20140188819A1 COMPRESSION AND DEDUPLICATION LAYERED DRIVER 有权
标题翻译：压缩和分层式驱动器
公开(公告)号：US20140188819A1
公开(公告)日：2014-07-03
申请号：US13733029
申请日：2013-01-02
申请人： ORACLE INTERNATIONAL CORPORATION
发明人： Prasad V. Bagal , Samarjeet Tomar
IPC分类号： G06F17/30
CPC分类号： G06F17/30156 , G06F17/30144 , G06F17/30153 , G06F17/30233 , G06F17/30371
摘要： A method, apparatus, and system for interposed file system driver is provided, which provides a logical file system on top of an existing base file system. One such interposed file system driver is a compression and deduplication layered driver (“COLD driver”). File system operations are intercepted from the operating system through the COLD driver, which is provided as an upper-level operating system driver that operates on top of an existing base file system. By processing file data through various modules, the existing base file system can be extended as a logical file system with compression, deduplication, indexing, and other functionality. The COLD driver can be implemented without requiring modifications to existing base file system structures or base file system drivers. Server deployments may thus leverage the additional file system functionality provided by the COLD driver without having to migrate to another file system.
摘要翻译：提供一种用于插入文件系统驱动器的方法，装置和系统，其在现有基本文件系统之上提供逻辑文件系统。一个这样插入的文件系统驱动器是压缩和重复数据删除分层驱动程序（“COLD驱动程序”）。通过COLD驱动程序从操作系统中截取文件系统操作，该驱动程序作为在现有基本文件系统上运行的上级操作系统驱动程序提供。通过各种模块处理文件数据，可以将现有的基本文件系统作为具有压缩，重复数据删除，索引和其他功能的逻辑文件系统进行扩展。可以实现COLD驱动程序，而不需要修改现有的基本文件系统结构或基本文件系统驱动程序。因此，服务器部署可能会利用COLD驱动程序提供的附加文件系统功能，而无需迁移到另一个文件系统。

3. 发明申请

US20200265023A1 SYSTEM FOR TRANSITION FROM A HIERARCHICAL FILE SYSTEM TO AN OBJECT STORE 审中-公开
公开(公告)号：US20200265023A1
公开(公告)日：2020-08-20
申请号：US16279946
申请日：2019-02-19
申请人： Oracle International Corporation
发明人： Samarjeet Tomar , Amit Roy , Saurabh Manchanda , Prasad V. Bagal
IPC分类号： G06F16/18 , G06F16/185
摘要： Techniques are provided for transitioning from a hierarchical file system to an object store. A request is received to change file metadata of a hierarchical file system. In response to the request: in-cache file metadata of the hierarchical file system is modified. The in-cache file metadata includes a directory structure of the hierarchical file system and file metadata of the hierarchical file system. Additionally, an in-store metadata journal entry is generated. The in-store metadata journal entry indicates an update to in-store file metadata. The in-store file metadata includes the directory structure of the hierarchical file system and file metadata of the hierarchical file system and is stored in an object store. The in-store metadata journal entry is stored in the object store. Furthermore, in-store file metadata and in-store metadata journal entry may be used to reconstruct the in-cache file metadata on another node.

4. 发明授权

US09846700B2 Compression and deduplication layered driver 有权
公开(公告)号：US09846700B2
公开(公告)日：2017-12-19
申请号：US15212099
申请日：2016-07-15
申请人： Oracle International Corporation
发明人： Prasad V. Bagal , Samarjeet Tomar
IPC分类号： G06F17/00 , G06F17/30
CPC分类号： G06F17/30156 , G06F17/30144 , G06F17/30153 , G06F17/30233 , G06F17/30371
摘要： A method, apparatus, and system for interposed file system driver is provided, which provides a logical file system on top of an existing base file system. One such interposed file system driver is a compression and deduplication layered driver (“COLD driver”). File system operations are intercepted from the operating system through the COLD driver, which is provided as an upper-level operating system driver that operates on top of an existing base file system. By processing file data through various modules, the existing base file system can be extended as a logical file system with compression, deduplication, indexing, and other functionality. The COLD driver can be implemented without requiring modifications to existing base file system structures or base file system drivers. Server deployments may thus leverage the additional file system functionality provided by the COLD driver without having to migrate to another file system.

5. 发明授权

US11669318B2 Rapid software provisioning and patching 有权
公开(公告)号：US11669318B2
公开(公告)日：2023-06-06
申请号：US17334658
申请日：2021-05-28
申请人： Oracle International Corporation
发明人： Amit Roy , Samarjeet Tomar , Prasad V. Bagal
IPC分类号： G06F8/61 , G06F8/65 , H04L67/00
CPC分类号： G06F8/63 , G06F8/65 , H04L67/34
摘要： Disclosed is an approach to implement an architecture and methodology that allows rapid access to provisioned software without requiring the entirety of the software distribution to be transferred to the target system in an upfront manner. Instead, a multi-tier architecture is used that allows the software to be provisioned and accessed with efficient access and reads of distribution materials from one or more remote storage locations.

6. 发明授权

US10698637B2 Stale block resynchronization in NVM based systems 有权
公开(公告)号：US10698637B2
公开(公告)日：2020-06-30
申请号：US16026785
申请日：2018-07-03
申请人： Oracle International Corporation
发明人： Samarjeet Tomar , Prasad V. Bagal , Saurabh Manchanda , James Aubrey Williams
IPC分类号： G06F3/06 , G06F9/455
摘要： A shared storage architecture persistently stores database files in non-volatile memories (NVMs) of a plurality of computing nodes of a multi-node DBMS. The computing nodes of the multi-node DBMS store data blocks in NVM and each computing node of the DBMS stores copies of each data block stored on the plurality of computing nodes. A computing node that disconnects and subsequently rejoins the DBMS employs an on-demand approach to resilvering stale data blocks that have been updated in other computing nodes in the DBMS while the computing node was offline. A data block may be resilvered on-demand based on an I/O request for a specific data block from a workload running on the reconnected computing node. Stale data blocks on the reconnected computing node are not resilvered unless they are accessed by the workload.

7. 发明授权

US09852284B2 Storage isolation using I/O authentication 有权
公开(公告)号：US09852284B2
公开(公告)日：2017-12-26
申请号：US15581457
申请日：2017-04-28
申请人： ORACLE INTERNATIONAL CORPORATION
发明人： Samarjeet Tomar , Prasad Bagal , Harish Nandyala
IPC分类号： H04L29/06 , G06F21/44 , G06F13/10
CPC分类号： G06F21/44 , G06F13/102 , H04L63/0876 , H04L63/10 , H04L63/123 , H04L67/1097
摘要： Techniques are described for logically isolating data I/O requests from different operating systems (OSes) for a same multi-tenant storage system (MTSS). Techniques provide for OSes and the MTSS to obtain security tokens associated with the OSes. In an embodiment, an OS uses a security token to generate an authentication token based on the contents of a data input/output (I/O) request and sends the authentication token to the MTSS along with the data I/O request. When an MTSS receives such data I/O request, MTSS retrieves its own copy of the security token associated with the OS and generates its own authentication token based on the contents of the received data I/O request. If the authentication token generated by the MTSS matches the authentication token generated by the OS, then the data I/O request is successfully authenticated. Otherwise, if the authorization tokens fail to match, then the data I/O request has been compromised. For example, either the contents of data I/O request has been tampered with, or an entity other than the OS, has sent the data I/O request in the first place. Accordingly, the data I/O request may not be serviced by the MTSS.

8. 发明授权

US09660987B2 Storage isolation using I/O authentication 有权
公开(公告)号：US09660987B2
公开(公告)日：2017-05-23
申请号：US14814354
申请日：2015-07-30
申请人： ORACLE INTERNATIONAL CORPORATION
发明人： Prasad Bagal , Samarjeet Tomar , Harish Nandyala
IPC分类号： H04L29/06
CPC分类号： G06F21/44 , G06F13/102 , H04L63/0876 , H04L63/10 , H04L63/123 , H04L67/1097
摘要： Techniques are described for logically isolating data I/O requests from different operating systems (OSes) for a same multi-tenant storage system (MTSS). Techniques provide for OSes and the MTSS to obtain security tokens associated with the OSes. In an embodiment, an OS uses a security token to generate an authentication token based on the contents of a data input/output (I/O) request and sends the authentication token to the MTSS along with the data I/O request. When an MTSS receives such data I/O request, MTSS retrieves its own copy of the security token associated with the OS and generates its own authentication token based on the contents of the received data I/O request. If the authentication token generated by the MTSS matches the authentication token generated by the OS, then the data I/O request is successfully authenticated. Otherwise, if the authorization tokens fail to match, then the data I/O request has been compromised. For example, either the contents of data I/O request has been tampered with, or an entity other than the OS, has sent the data I/O request in the first place. Accordingly, the data I/O request may not be serviced by the MTSS.

9. 发明申请

US20170034165A1 STORAGE ISOLATION USING I/O AUTHENTICATION 有权
标题翻译：使用I / O认证的存储隔离
公开(公告)号：US20170034165A1
公开(公告)日：2017-02-02
申请号：US14814354
申请日：2015-07-30
申请人： ORACLE INTERNATIONAL CORPORATION
发明人： Prasad Bagal , Samarjeet Tomar , Harish Nandyala
IPC分类号： H04L29/06
CPC分类号： G06F21/44 , G06F13/102 , H04L63/0876 , H04L63/10 , H04L63/123 , H04L67/1097
摘要： Techniques are described for logically isolating data I/O requests from different operating systems (OSes) for a same multi-tenant storage system (MTSS). Techniques provide for OSes and the MTSS to obtain security tokens associated with the OSes. In an embodiment, an OS uses a security token to generate an authentication token based on the contents of a data input/output (I/O) request and sends the authentication token to the MTSS along with the data I/O request. When an MTSS receives such data I/O request, MTSS retrieves its own copy of the security token associated with the OS and generates its own authentication token based on the contents of the received data I/O request. If the authentication token generated by the MTSS matches the authentication token generated by the OS, then the data I/O request is successfully authenticated. Otherwise, if the authorization tokens fail to match, then the data I/O request has been compromised. For example, either the contents of data I/O request has been tampered with, or an entity other than the OS, has sent the data I/O request in the first place. Accordingly, the data I/O request may not be serviced by the MTSS.
摘要翻译：描述了用于逻辑隔离同一多租户存储系统（MTSS）的不同操作系统（OS）的数据I / O请求的技术。技术为操作系统和MTSS提供了与操作系统相关联的安全令牌。在一个实施例中，OS使用安全令牌来基于数据输入/输出（I / O）请求的内容生成认证令牌，并将认证令牌与数据I / O请求一起发送到MTSS。当MTSS接收到这样的数据I / O请求时，MTSS检索其与OS相关联的安全令牌的自己的副本，并根据接收到的数据I / O请求的内容生成自己的认证令牌。如果由MTSS产生的认证令牌与OS生成的认证令牌匹配，则成功认证数据I / O请求。否则，如果授权令牌不匹配，则数据I / O请求已被破坏。例如，数据I / O请求的内容已经被篡改，或者除了OS之外的实体已经首先发送了数据I / O请求。因此，数据I / O请求可能不被MTSS服务。

10. 发明授权

US11347696B2 System for transition from a hierarchical file system to an object store 有权
公开(公告)号：US11347696B2
公开(公告)日：2022-05-31
申请号：US16279946
申请日：2019-02-19
申请人： Oracle International Corporation
发明人： Samarjeet Tomar , Amit Roy , Saurabh Manchanda , Prasad V. Bagal
IPC分类号： G06F16/18 , G06F16/185
摘要： Techniques are provided for transitioning from a hierarchical file system to an object store. A request is received to change file metadata of a hierarchical file system. In response to the request: in-cache file metadata of the hierarchical file system is modified. The in-cache file metadata includes a directory structure of the hierarchical file system and file metadata of the hierarchical file system. Additionally, an in-store metadata journal entry is generated. The in-store metadata journal entry indicates an update to in-store file metadata. The in-store file metadata includes the directory structure of the hierarchical file system and file metadata of the hierarchical file system and is stored in an object store. The in-store metadata journal entry is stored in the object store. Furthermore, in-store file metadata and in-store metadata journal entry may be used to reconstruct the in-cache file metadata on another node.

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