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    • 5. 发明授权
    • Method, system, and program for data corruption detection and fault isolation
    • 用于数据损坏检测和故障隔离的方法,系统和程序
    • US07219267B2
    • 2007-05-15
    • US10752758
    • 2004-01-07
    • Kevin Lee GibbleJames Chien-Chiung ChenMichael Thomas BenhaseMinh-Ngoc Le Huynh
    • Kevin Lee GibbleJames Chien-Chiung ChenMichael Thomas BenhaseMinh-Ngoc Le Huynh
    • G06F11/00
    • G06F11/1004G06F11/1064
    • Disclosed is a technique for fault isolation. A first error check is performed on a block of data in storage to determine whether the block of data was corrupted after the block of data was transferred from memory to the storage. When the first error check indicates that the block of data was corrupted, a second error check is performed using the block of data in the memory to determine whether the block of data was corrupted before being transferred from the memory. When the second error check indicates that the block of data was corrupted before being transferred from the memory, it is determined that the block of data was corrupted before being stored in the memory. When the second error check indicates that the block of data was corrupted after being transferred from the memory, it is determined that the block of data was corrupted by at least one of the memory or a formatter that performed the transfer.Additionally disclosed is a technique in which a block of data is transferred from a memory at a first control unit to a memory at a second control unit. At the first control unit, when a second error check at the second control unit indicates that the block of data was corrupted before being transferred from the memory, a third error check is performed on the block of data in memory at the first control unit. When the third error check indicates that the block of data was corrupted, it is determined that the block of data was corrupted at the first control unit. When the third error check indicates that the block of data was not corrupted, it is determined that the block of data was corrupted during transfer from the first control unit to the second control unit.
    • 公开了一种用于故障隔离的技术。 对存储器中的数据块执行第一个错误检查,以确定在数据块从存储器传输到存储器之后数据块是否已损坏。 当第一个错误检查指示数据块被破坏时,使用存储器中的数据块执行第二个错误检查,以确定在从存储器传送之前数据块是否已损坏。 当第二个错误检查指示在从存储器传送之前数据块被破坏时,确定数据块在存储在存储器中之前被破坏。 当第二个错误检查指示在从存储器传送之后数据块被破坏时,确定数据块被执行传送的存储器或格式器中的至少一个损坏。 另外公开了一种技术,其中数据块从第一控制单元的存储器传送到第二控制单元处的存储器。 在第一控制单元处,当第二控制单元的第二错误检查指示在从存储器传送之前数据块被破坏时,对第一控制单元的存储器中的数据块执行第三错误检查。 当第三个错误检查指示数据块被破坏时,确定数据块在第一个控制单元被破坏。 当第三错误检查指示数据块未被破坏时,确定在从第一控制单元传送到第二控制单元期间数据块被破坏。
    • 9. 发明授权
    • Method for the detection of misdirected data
    • 检测误导数据的方法
    • US07421519B2
    • 2008-09-02
    • US10719440
    • 2003-11-20
    • Michael Thomas BenhaseJames Chien-Chiung ChenPatricia Ching LuFrederick James Carberry, II
    • Michael Thomas BenhaseJames Chien-Chiung ChenPatricia Ching LuFrederick James Carberry, II
    • G06F12/00G06F3/00
    • H04L67/1097G06F3/0619G06F3/0659G06F3/067
    • Provided is a method, wherein in certain embodiments an I/O command from a host is received at a first storage unit. An identifier is generated that identifies a destination to which the I/O command is to be transmitted from the first storage unit. The I/O command is augmented with the generated identifier at the first storage unit. The augmented I/O command is transmitted. In certain other embodiments, an I/O command is received at a storage unit, wherein the storage unit is associated with a storage unit identifier. A determination is made at the storage unit, whether the I/O command is associated with an identifier that identifies a destination for which the I/O command is intended. A further determination is made, at the storage unit, whether the identifier is the same as the storage unit identifier, in response to determining that the identifier associated with the I/O command identifies the destination for which the I/O command is intended.
    • 提供了一种方法,其中在某些实施例中,来自主机的I / O命令在第一存储单元处被接收。 生成识别从第一存储单元发送I / O命令的目的地的标识符。 I / O命令在第一个存储单元处增加了生成的标识符。 增加的I / O命令被传输。 在某些其他实施例中,在存储单元处接收I / O命令,其中存储单元与存储单元标识符相关联。 在存储单元中确定I / O命令是否与识别I / O命令所针对的目的地的标识符相关联。 响应于确定与I / O命令相关联的标识符识别I / O命令的目的地,在存储单元处进一步确定标识符是否与存储单元标识符相同。