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1. 发明申请

US20050138526A1 Recovering track format information mismatch errors using data reconstruction 失效
标题翻译：使用数据重建恢复轨道格式信息不匹配错误
公开(公告)号：US20050138526A1
公开(公告)日：2005-06-23
申请号：US10719213
申请日：2003-11-20
申请人： Colleen Stouffer , Karl Nielsen , Kenneth Todd , David Mannenbach
发明人： Colleen Stouffer , Karl Nielsen , Kenneth Todd , David Mannenbach
IPC分类号： G06K5/04 , G11B5/00 , G11B19/04 , G11B20/20 , G11B27/00 , G11B27/11 , G11B27/36 , G11C29/00
CPC分类号： G11B19/04 , G11B27/002 , G11B27/11 , G11B27/36 , G11B2220/415
摘要： A method, system, and article of manufacture for recovering from a track format error detected by a host computer associated with a storage controller associated with a storage disk array. The recovery method begins with saving a copy of the track format information associated with the data track that triggered the track format error in a predetermined location. Next, the track format information associated with the data track that caused the error is invalidated and the subject data is restaged. Subsequently, the restaged data is compared to the saved copy of the track format information to determine if the track format error exists with respect to the restaged data. If the track format error is detected with respect to the restaged data, the method further consists of reconstructing the data, preferably by performing a reconstruct read recovery. The reconstructed data is then compared to the saved copy of the track format information to determine if the track format error exists with respect to the reconstructed data. The method is completed by rebuilding the track format information to match the reconstructed data, writing the reconstructed data to the storage disk array, and passing the reconstructed data to the host.
摘要翻译：用于从与存储盘阵列相关联的存储控制器相关联的主计算机检测到的轨道格式错误中恢复的方法，系统和制品。恢复方法开始于保存与在预定位置触发轨道格式错误的数据轨道相关联的轨道格式信息的副本。接下来，与导致错误的数据轨道相关联的轨道格式信息被无效并且主题数据被重新调用。随后，将重新分配的数据与保存的轨道格式信息的副本进行比较，以确定相对于重新分配的数据是否存在轨道格式错误。如果相对于再分页数据检测到轨道格式错误，该方法还包括重建数据，优选地通过执行重构读取恢复。然后将重建的数据与保存的轨道格式信息的副本进行比较，以确定相对于重构数据是否存在轨道格式错误。该方法通过重建跟踪格式信息以匹配重构数据，将重建的数据写入存储盘阵列，并将重建的数据传送到主机来完成。

2. 发明申请

US20050114729A1 Host-initiated data reconstruction for improved raid read operations 有权
标题翻译：主机启动的数据重建，以改进突袭读取操作
公开(公告)号：US20050114729A1
公开(公告)日：2005-05-26
申请号：US10719180
申请日：2003-11-20
申请人： Karl Nielsen , Colleen Stouffer , Matthew Fairhurst , Lee Sanders
发明人： Karl Nielsen , Colleen Stouffer , Matthew Fairhurst , Lee Sanders
IPC分类号： G06F11/00
CPC分类号： G06F11/1076 , G06F2211/1009 , G06F2211/109
摘要： Method, system and computer program product are provided to improve the reliability of data transfers from RAID systems. Although some read errors may be detected by the RAID controller, other errors may not be; undetected errors may affect the integrity of the data. In accordance with the present invention, the host or client issues a first command to the RAID controller to read specified data. After the RAID controller obtains the data from the RAID drives and transmits it to the host, the host verifies the data to detect any errors. If an error is detected by the host, the host issues a second command to the RAID controller to reconstruct the specified data, rather than merely re-read the data. The reconstructed data is then transmitted to the host. Consequently, previously undetected and uncorrected errors may be detected and corrected by the host.
摘要翻译：提供方法，系统和计算机程序产品，以提高从RAID系统传输数据的可靠性。虽然RAID控制器可能检测到一些读取错误，但其他错误可能不是; 未检测到的错误可能会影响数据的完整性。根据本发明，主机或客户端向RAID控制器发出第一命令以读取指定的数据。在RAID控制器从RAID驱动器获取数据并将其发送到主机之后，主机将验证数据以检测任何错误。如果主机检测到错误，主机向RAID控制器发出第二个命令来重建指定的数据，而不是仅重新读取数据。然后将重建的数据发送到主机。因此，以前未检测到和未校正的错误可能被主机检测和纠正。

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