公开(公告)号：US08483071B2

公开(公告)日：2013-07-09

申请号：US12561114

申请日：2009-09-16

Applicant: Dung Ngoc Dang ,  Daniel W. Fok ,  Steven Edward Klein ,  Gail Andrea Spear

Inventor： Dung Ngoc Dang ,  Daniel W. Fok ,  Steven Edward Klein ,  Gail Andrea Spear

IPC: G01R31/08 ,  H04L12/28

CPC classification number: H04B10/03 ,  H04L41/0654 ,  H04L43/0811 ,  H04L43/10 ,  H04L43/50

Abstract: A method for verifying the integrity of a communication link is disclosed herein. In selected embodiments, such a method may include detecting, during normal operation of a communication link, a condition indicative of a high failure rate (HFR) on the communication link. The method may further include placing the communication link in an HFR state as a result of the condition. While in HFR state, the method may repeatedly transmit test I/Os over the communication link. The method may then automatically exit HFR state and resume normal operation on the communication link when one or more of the following has occurred: a selected number of test I/Os have been successfully transmitted over the communication link, and a number of test I/Os have been successfully transmitted over the communication link for a selected period of time. A corresponding system, apparatus, and computer program product are also disclosed and claimed herein.

Abstract translation: 本文公开了一种用于验证通信链路的完整性的方法。 在所选择的实施例中，这种方法可以包括在通信链路的正常操作期间检测指示通信链路上的高故障率（HFR）的条件。 该方法还可以包括作为条件的结果将通信链路置于HFR状态。 在HFR状态下，该方法可以通过通信链路重复发送测试I / O。 然后，当发生以下一个或多个事件时，该方法可以自动退出HFR状态并在通信链路上恢复正常操作：所选择的测试I / O数量已经通过通信链路成功发送，并且多个测试I / O已经通过通信链路成功传输了一段选定的时间。 本文还公开并要求对应的系统，装置和计算机程序产品。

公开(公告)号：US5235585A

公开(公告)日：1993-08-10

申请号：US758923

申请日：1991-09-11

Applicant: John E. Bish ,  Daniel W. Fok ,  Brian G. Goodman ,  Arturo A. Mojica

Inventor： John E. Bish ,  Daniel W. Fok ,  Brian G. Goodman ,  Arturo A. Mojica

IPC: G06F3/06 ,  G11B20/18

CPC classification number: G11B20/1883 ,  G11B20/1833 ,  G11B2220/20

Abstract: The present invention locates spare sectors for replacing secondary defects found during disk use. A sorted defective sector list is maintained for tracking the spare sectors that have been previously used for replacements of other secondary defects. When a secondary defect address is found, a secondary defect list is updated both on the disk and in the drive's memory. A spare sector, for replacing the secondary defect is located by first calculating a group number to determine which group the secondary defect is located in. Next, the boundaries for a plurality of spare sectors allocated for that group is determined. After searching the replacement sector list, the first available spare sector of the plurality of spare sectors is identified as the replacement sector. If all of the plurality of spare sectors have been previously assigned as replacement sectors, a spare sector is instead located from a plurality of spare sectors allocated to a neighboring group. After locating the spare sector, its physical address is returned and the spare sector is logged in the defective sector list and in the replacement list.

Abstract translation: 本发明找到用于替换在盘使用期间发现的次级缺陷的备用扇区。 维护排序的缺陷扇区列表以跟踪先前用于替换其他次级缺陷的备用扇区。 当发现次级缺陷地址时，在磁盘和驱动器的存储器中更新次要缺陷列表。 通过首先计算组号来确定用于替换次级缺陷的备用扇区，以确定次级缺陷所在的组。接下来，确定为该组分配的多个备用扇区的边界。 在搜索替换扇区列表之后，将多个备用扇区中的第一可用备用扇区识别为替换扇区。 如果多个备用扇区中的全部已经被分配为替换扇区，则备用扇区代替分配给相邻组的多个备用扇区。 找到备用扇区后，返回其物理地址，并将备用扇区记录在缺陷扇区列表和替换列表中。

公开(公告)号：US20110063983A1

公开(公告)日：2011-03-17

申请号：US12561114

申请日：2009-09-16

Applicant: Dung N. Dang ,  Daniel W. Fok ,  Steven E. Klein ,  Gail A. Spear

Inventor： Dung N. Dang ,  Daniel W. Fok ,  Steven E. Klein ,  Gail A. Spear

IPC: H04L12/26

CPC classification number: H04B10/03 ,  H04L41/0654 ,  H04L43/0811 ,  H04L43/10 ,  H04L43/50

Abstract: A method for verifying the integrity of a communication link is disclosed herein. In selected embodiments, such a method may include detecting, during normal operation of a communication link, a condition indicative of a high failure rate (HFR) on the communication link. The method may further include placing the communication link in an HFR state as a result of the condition. While in HFR state, the method may repeatedly transmit test I/Os over the communication link. The method may then automatically exit HFR state and resume normal operation on the communication link when one or more of the following has occurred: a selected number of test I/Os have been successfully transmitted over the communication link, and a number of test I/Os have been successfully transmitted over the communication link for a selected period of time. A corresponding system, apparatus, and computer program product are also disclosed and claimed herein.

Abstract translation: 本文公开了一种用于验证通信链路的完整性的方法。 在所选择的实施例中，这种方法可以包括在通信链路的正常操作期间检测指示通信链路上的高故障率（HFR）的条件。 该方法还可以包括作为条件的结果将通信链路置于HFR状态。 在HFR状态下，该方法可以通过通信链路重复发送测试I / O。 然后，当发生以下一个或多个事件时，该方法可以自动退出HFR状态并在通信链路上恢复正常操作：已经通过通信链路成功发送所选数量的测试I / O，并且多个测试I / O已经通过通信链路成功传输了一段选定的时间。 本文还公开并要求对应的系统，装置和计算机程序产品。