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1. 发明申请

US20120173790A1 STORAGE SYSTEM CACHE WITH FLASH MEMORY IN A RAID CONFIGURATION 有权
标题翻译：存储系统使用闪存存储器进行RAID配置
公开(公告)号：US20120173790A1
公开(公告)日：2012-07-05
申请号：US12981288
申请日：2010-12-29
申请人： STEVEN R. HETZLER , DANIEL F. SMITH
发明人： STEVEN R. HETZLER , DANIEL F. SMITH
IPC分类号： G06F12/02 , G06F12/16 , G06F12/08
CPC分类号： G06F12/0868 , G06F11/1076 , G06F2211/1009 , G06F2212/2022
摘要： Embodiments of the invention relate to a storage system cache with flash memory units organized in a RAID configuration. An aspect of the invention includes a storage system comprising a storage system cache with flash memory in a RAID configuration. The storage cache comprises flash memory units organized in an array configuration. Each of the flash memory units comprises flash memory devices and a flash unit controller. Each flash unit controller manages data access and data operations for its corresponding flash memory devices. The storage system further includes an array controller, coupled to the flash memory units, and that manages data access and data operations for the flash memory units and organizes data as full array stripes. The storage system further includes a primary storage device, which is coupled to the array controller, and stores data for the storage system. The storage system further includes a storage cache controller, coupled to the array controller, and comprises a block line manager that buffers write data to be cached for a write operation until the storage cache controller has accumulated an array band, and commits write data to the array controller as full array stripes. The storage cache controller receives storage commands from at least one host system. The storage cache controller determines for a write data storage command, whether to store write data in the storage cache and/or in the primary storage device; and for a read data storage command, whether to access read data from the storage cache or from the primary storage device.
摘要翻译：本发明的实施例涉及具有以RAID配置组织的闪存单元的存储系统高速缓存。本发明的一个方面包括一种存储系统，其包括具有RAID配置中的闪存的存储系统高速缓存。存储缓存包括以阵列配置组织的闪存单元。每个闪存单元包括闪存设备和闪存单元控制器。每个闪存单元控制器管理其对应的闪存设备的数据访问和数据操作。存储系统还包括耦合到闪存单元的阵列控制器，并且管理闪存单元的数据访问和数据操作，并将数据组织为完整阵列条带。存储系统还包括主存储设备，其耦合到阵列控制器，并存储用于存储系统的数据。存储系统还包括耦合到阵列控制器的存储高速缓存控制器，并且包括块线路管理器，其缓冲要被高速缓存用于写入操作的写入数据，直到存储高速缓存控制器已经累积阵列频带，并且向阵列控制器作为全阵列条纹。存储高速缓存控制器从至少一个主机系统接收存储命令。存储高速缓存控制器确定写入数据存储命令，是否将写入数据存储在存储高速缓存和/或主存储设备中; 并且对于读取数据存储命令，是否从存储高速缓存或从主存储设备访问读取数据。

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