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    • 65. 发明授权
    • Differential caching mechanism based on media I/O speed
    • 基于媒体I / O速度的差分缓存机制
    • US08095738B2
    • 2012-01-10
    • US12484963
    • 2009-06-15
    • Michael Thomas BenhaseLawrence Yiumchee ChiuLokesh Mohan GuptaYu-Cheng Hsu
    • Michael Thomas BenhaseLawrence Yiumchee ChiuLokesh Mohan GuptaYu-Cheng Hsu
    • G06F12/00
    • G06F12/0873G06F12/0868G06F12/0871G06F12/121G06F2212/261
    • A method for allocating space in a cache based on media I/O speed is disclosed herein. In certain embodiments, such a method may include storing, in a read cache, cache entries associated with faster-responding storage devices and cache entries associated with slower-responding storage devices. The method may further include implementing an eviction policy in the read cache. This eviction policy may include demoting, from the read cache, the cache entries of faster-responding storage devices faster than the cache entries of slower-responding storage devices, all other variables being equal. In certain embodiments, the eviction policy may further include demoting, from the read cache, cache entries having a lower read-hit ratio faster than cache entries having a higher read-hit ratio, all other variables being equal. A corresponding computer program product and apparatus are also disclosed and claimed herein.
    • 本文公开了一种基于媒体I / O速度在高速缓存中分配空间的方法。 在某些实施例中,这种方法可以包括在读取缓存中存储与更快响应的存储设备相关联的高速缓存条目以及与较慢响应的存储设备相关联的高速缓存条目。 该方法还可以包括在读取高速缓存中实现逐出策略。 这种驱逐策略可以包括从读取的缓存降低响应较快的存储设备的高速缓存条目比缓慢响应的存储设备的缓存条目更快,所有其他变量相等。 在某些实施例中,驱逐策略还可以包括从读取的缓存降级具有比具有较高读取命中率的高速缓存条目更低的读命中率的高速缓存条目,所有其他变量相等。 本文还公开并要求相应的计算机程序产品和装置。
    • 68. 发明申请
    • DIFFERENTIAL CACHING MECHANISM BASED ON MEDIA I/O SPEED
    • 基于媒体I / O速度的差分缓存机制
    • US20100318744A1
    • 2010-12-16
    • US12484963
    • 2009-06-15
    • Michael T. BenhaseLawrence Y. ChiuLokesh M. GuptaYu-Cheng Hsu
    • Michael T. BenhaseLawrence Y. ChiuLokesh M. GuptaYu-Cheng Hsu
    • G06F12/08G06F12/00
    • G06F12/0873G06F12/0868G06F12/0871G06F12/121G06F2212/261
    • A method for allocating space in a cache based on media I/O speed is disclosed herein. In certain embodiments, such a method may include storing, in a read cache, cache entries associated with faster-responding storage devices and cache entries associated with slower-responding storage devices. The method may further include implementing an eviction policy in the read cache. This eviction policy may include demoting, from the read cache, the cache entries of faster-responding storage devices faster than the cache entries of slower-responding storage devices, all other variables being equal. In certain embodiments, the eviction policy may further include demoting, from the read cache, cache entries having a lower read-hit ratio faster than cache entries having a higher read-hit ratio, all other variables being equal. A corresponding computer program product and apparatus are also disclosed and claimed herein.
    • 本文公开了一种基于媒体I / O速度在高速缓存中分配空间的方法。 在某些实施例中,这种方法可以包括在读取缓存中存储与更快响应的存储设备相关联的高速缓存条目以及与较慢响应的存储设备相关联的高速缓存条目。 该方法还可以包括在读取高速缓存中实现逐出策略。 这种驱逐策略可以包括从读取的缓存降低响应较快的存储设备的高速缓存条目比缓慢响应的存储设备的缓存条目更快,所有其他变量相等。 在某些实施例中,驱逐策略还可以包括从读取的缓存降级具有比具有较高读取命中率的高速缓存条目更低的读命中率的高速缓存条目,所有其他变量相等。 本文还公开并要求相应的计算机程序产品和装置。
    • 69. 发明授权
    • Configuring cache memory from a storage controller
    • 从存储控制器配置缓存内存
    • US07600152B2
    • 2009-10-06
    • US11926537
    • 2007-10-29
    • Kevin J. AshDavid F. MannenbachYu-Cheng Hsu
    • Kevin J. AshDavid F. MannenbachYu-Cheng Hsu
    • G06F11/00
    • G06F12/0866G06F11/2089G06F2212/601
    • Disclosed are a storage controller, and a method of operating a storage controller, for interfacing between host systems and a storage devices system. The storage controller includes a first cluster including a first processor and a first cache, and a second cluster including a second processor and a second cache. The method comprises the step of directing data from the host systems through first and second data paths to the storage system. The first processor and cache are associated with the first data path, and the second processor and cache are associated with the second data path. Under one set of conditions, the controller enters a failover mode, wherein data directed to the first data path are routed to the second data path. Under another set of conditions, the controller deconfigures the first cache without entering the failover mode.
    • 公开了存储控制器和操作存储控制器的方法,用于在主机系统和存储设备系统之间进行接口。 存储控制器包括包括第一处理器和第一高速缓存的第一群集,以及包括第二处理器和第二高速缓存的第二群集。 该方法包括将来自主机系统的数据通过第一和第二数据路径引导到存储系统的步骤。 第一处理器和高速缓存与第一数据路径相关联,并且第二处理器和高速缓存与第二数据路径相关联。 在一组条件下,控制器进入故障转移模式,其中指向第一数据路径的数据被路由到第二数据路径。 在另一组条件下,控制器解除配置第一个缓存而不进入故障切换模式。
    • 70. 发明申请
    • Data write/read auxiliary device and method for writing/reading data
    • 数据写/读辅助设备和数据写入/读取方法
    • US20090019236A1
    • 2009-01-15
    • US12216854
    • 2008-07-11
    • Wei-Chiang HsuYu-Cheng HsuPeng-Yu HuangTsung-Lin YuChang-Wei ChungHen-Jui Liang
    • Wei-Chiang HsuYu-Cheng HsuPeng-Yu HuangTsung-Lin YuChang-Wei ChungHen-Jui Liang
    • G06F12/00
    • G06F3/0656G06F3/0616G06F3/067G06F3/0676
    • A data write/read auxiliary device and method for writing/reading data are provided. A data storage unit and a program storage unit are installed in the data write/read auxiliary device, wherein the program storage unit is for storing automatic execution program and protection program. When the data write/read auxiliary device is connected to a data processing device, the automatic execution program is executed for automatically executing programs stored in the program storage unit. The protection program is executed for executing an access process on data storage unit to judge whether driving a write/read head or not based on outcome of the access process when a file sharing software is executed for data downloading and uploading. Through the data storage unit as a buffer area of data before writing/reading data on a hard disk, the data write/read auxiliary device and method for writing/reading data can protect the hard disk.
    • 提供了一种用于写/读数据的数据写/读辅助装置和方法。 数据存储单元和程序存储单元安装在数据写/读辅助设备中,其中程序存储单元用于存储自动执行程序和保护程序。 当数据写入/读取辅助设备连接到数据处理设备时,执行自动执行程序以自动执行存储在程序存储单元中的程序。 当执行用于数据下载和上载的文件共享软件时,执行保护程序以执行对数据存储单元的访问过程,以基于访问过程的结果来判断是否驱动写入/读取头。 通过数据存储单元作为在硬盘上写入/读取数据之前的数据的缓冲区,数据写/读辅助设备和用于写/读数据的方法可以保护硬盘。