公开(公告)号：US06240527B1

公开(公告)日：2001-05-29

申请号：US09450266

申请日：1999-11-29

申请人： Eric Schneider ,  Chuck Ferril ,  Doug Wheeler ,  Larry Schwartz ,  Edward Bruggeman

发明人： Eric Schneider ,  Chuck Ferril ,  Doug Wheeler ,  Larry Schwartz ,  Edward Bruggeman

IPC分类号： G06F1100

CPC分类号： G06F17/3023 ,  G06F11/1435 ,  G06F11/1451 ,  G06F11/1456 ,  G06F11/1464 ,  G06F11/1469 ,  G06F11/1471

摘要： A method and apparatus for reverting a disk drive to an earlier point in time is disclosed. Changes made to the drive are saved in a circular history buffer which includes the old data, the time it was replaced by new data, and the original location of the data. The circular history buffer may also be implemented by saving new data elements into new locations and leaving the old data elements in their original locations. References to the new data elements are mapped to the new location. The disk drive is reverted to an earlier point in time by replacing the new data elements with the original data elements retrieved from the history buffer, or in the case of the other embodiment, reads to the disk are mapped to the old data elements stilled stored in their original locations. The method and apparatus may be implemented as part of an operating system, or as a separate program, or in the controller for the disk drive. The method and apparatus are applicable to other forms of data storage as well. Also disclosed are method and apparatus for providing firewall protection to data in a data storage medium of a computer system.

摘要翻译： 公开了一种用于将磁盘驱动器恢复到较早时间点的方法和装置。 对驱动器所做的更改将保存在包含旧数据，新数据替换的时间以及数据的原始位置的循环历史缓冲区中。 循环历史缓冲器也可以通过将新数据元素保存到新位置并将旧数据元素留在其原始位置来实现。 对新数据元素的引用映射到新位置。 通过使用从历史缓冲器检索的原始数据元素替换新的数据元素，或者在另一实施例的情况下，将磁盘驱动器恢复到较早的时间点，对盘的读取被映射到静止存储的旧数据元素 在原来的位置。 该方法和装置可以被实现为操作系统的一部分，或者作为单独的程序，或在用于磁盘驱动器的控制器中。 该方法和装置也适用于其他形式的数据存储。 还公开了用于向计算机系统的数据存储介质中的数据提供防火墙保护的方法和装置。

公开(公告)号：US6016553A

公开(公告)日：2000-01-18

申请号：US105733

申请日：1998-06-26

申请人： Eric Schneider ,  Chuck Ferril ,  Doug Wheeler ,  Larry Schwartz ,  Edward Bruggeman

发明人： Eric Schneider ,  Chuck Ferril ,  Doug Wheeler ,  Larry Schwartz ,  Edward Bruggeman

IPC分类号： G06F3/06 ,  G06F11/14 ,  G11B20/10 ,  G06F11/00

CPC分类号： G06F17/3023 ,  G06F11/1435 ,  G06F11/1451 ,  G06F11/1469 ,  G06F11/1471 ,  G06F11/1456 ,  G06F11/1464

摘要： A method and apparatus for reverting a disk drive to an earlier point in time is disclosed. Changes made to the drive are saved in a circular history buffer which includes the old data, the time it was replaced by new data, and the original location of the data. The circular history buffer may also be implemented by saving new data elements into new locations and leaving the old data elements in their original locations. References to the new data elements are mapped to the new location. The disk drive is reverted to an earlier point in time by replacing the new data elements with the original data elements retrieved from the history buffer, or in the case of the other embodiment, reads to the disk are mapped to the old data elements stilled stored in their original locations. The method and apparatus may be implemented as part of an operating system, or as a separate program, or in the controller for the disk drive. The method and apparatus are applicable to other forms of data storage as well. Also disclosed are method and apparatus for providing firewall protection to data in a data storage medium of a computer system.

摘要翻译： 公开了一种用于将磁盘驱动器恢复到较早时间点的方法和装置。 对驱动器所做的更改将保存在包含旧数据，新数据替换的时间以及数据的原始位置的循环历史缓冲区中。 循环历史缓冲器也可以通过将新数据元素保存到新位置并将旧数据元素留在其原始位置来实现。 对新数据元素的引用映射到新位置。 通过使用从历史缓冲器检索的原始数据元素替换新的数据元素，或者在另一实施例的情况下，将磁盘驱动器恢复到较早的时间点，对盘的读取被映射到静止存储的旧数据元素 在原来的位置。 该方法和装置可以被实现为操作系统的一部分，或作为单独的程序，或在用于磁盘驱动器的控制器中。 该方法和装置也适用于其他形式的数据存储。 还公开了用于向计算机系统的数据存储介质中的数据提供防火墙保护的方法和装置。