公开(公告)号：US20180081768A1

公开(公告)日：2018-03-22

申请号：US15494240

申请日：2017-04-21

Applicant: Oracle International Corporation

Inventor： Mahanteshwar Chimangala Maheshwar ,  Hanlin Daniel Chien ,  Prasad V. Bagal ,  Harish Nandyala ,  Rajiv Wickremesinghe ,  Hemanth Pikkili ,  Sahaj Agarwal

IPC: G06F11/14 ,  G06F11/18

CPC classification number: G06F11/1471 ,  G06F11/182 ,  G06F11/186 ,  G06F11/187 ,  G06F11/2094 ,  G06F2201/80 ,  G06F2201/805 ,  G06F2201/82

Abstract: Embodiments enable a database management system (DBMS) to manage two levels of disk failure groups. These two levels of redundancy are achieved by grouping the disks of the disk group for the DBMS into two levels of failure groups (i.e., “data sites” each containing two or more “failure groups” of disks). This system of disk grouping allows a DBMS to potentially tolerate the loss of both an entire first site and part of a second site. Such a DBMS uses a multi-level voting system, based on both failure group-level votes and site-level votes, to identify the current version of administrative data structures (ADS) that store key administrative data. In addition to data sites that store database data, the DBMS includes a quorum site with a single quorum failure group that stores a copy of the ADS. The quorum site contributes a site-level vote during a multi-level voting event.

公开(公告)号：US10387273B2

公开(公告)日：2019-08-20

申请号：US15494240

申请日：2017-04-21

Applicant: Oracle International Corporation

Inventor： Mahanteshwar Chimangala Maheshwar ,  Hanlin Daniel Chien ,  Prasad V. Bagal ,  Harish Nandyala ,  Rajiv Wickremesinghe ,  Hemanth Pikkili ,  Sahaj Agarwal

IPC: G06F11/00 ,  G06F11/14 ,  G06F11/18 ,  G06F11/20

Abstract: Embodiments enable a database management system (DBMS) to manage two levels of disk failure groups. These two levels of redundancy are achieved by grouping the disks of the disk group for the DBMS into two levels of failure groups (i.e., “data sites” each containing two or more “failure groups” of disks). This system of disk grouping allows a DBMS to potentially tolerate the loss of both an entire first site and part of a second site. Such a DBMS uses a multi-level voting system, based on both failure group-level votes and site-level votes, to identify the current version of administrative data structures (ADS) that store key administrative data. In addition to data sites that store database data, the DBMS includes a quorum site with a single quorum failure group that stores a copy of the ADS. The quorum site contributes a site-level vote during a multi-level voting event.

公开(公告)号：US08924951B2

公开(公告)日：2014-12-30

申请号：US13832381

申请日：2013-03-15

Applicant: Oracle International Corporation

Inventor： Prasad V. Bagal ,  Santhosh Selvaraj ,  Mahanteshwar Chimangala Maheshwar ,  Harish Nandyala

IPC: G06F9/445

CPC classification number: G06F8/65

Abstract: Systems, methods, and other embodiments associated with maintaining information about patches installed on a node are described. In one embodiment, a method includes, in response to installing a patch to a program, updating a list of installed patches in a computer by adding an identifier of the patch to the list of installed patches. The method also includes embedding the updated list of installed patches into compiled binary code of the program.

Abstract translation: 描述与维护关于安装在节点上的补丁的信息相关联的系统，方法和其他实施例。 在一个实施例中，一种方法包括响应于向程序安装补丁，通过将修补程序的标识符添加到已安装补丁的列表来更新计算机中安装的修补程序的列表。 该方法还包括将安装的补丁的更新列表嵌入到程序的编译二进制代码中。