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公开(公告)号:US20150378642A1
公开(公告)日:2015-12-31
申请号:US13832165
申请日:2013-03-15
Applicant: SEAGATE TECHNOLOGY LLC
Inventor: John Edward Moon , Stanton MacDonough Keeler , Margot Ann LaPanse , Michael Edward Baum , Kai Bradley Gelatt , Nicolai Robert Ramler
IPC: G06F3/06
CPC classification number: G06F3/065 , G06F3/0619 , G06F3/068
Abstract: A device may comprise a first data storage medium, a second data storage medium, and a controller. The controller may be configured to store file system information to the first data storage medium, storing a copy of file system information for the first data storage medium to the second data storage medium as a backup, loading the file system information from the first data storage medium to a cache memory when the file system information in the first data storage medium contains valid data, and loading the copy of the file system information from the second data storage medium to the cache when the file system information in the first data storage medium does not contain valid data.
Abstract translation: 设备可以包括第一数据存储介质,第二数据存储介质和控制器。 控制器可以被配置为将文件系统信息存储到第一数据存储介质,将用于第一数据存储介质的文件系统信息的副本存储到第二数据存储介质作为备份,从第一数据存储装载文件系统信息 当第一数据存储介质中的文件系统信息包含有效数据时,介质到缓存存储器,并且当第一数据存储介质中的文件系统信息执行时将文件系统信息的副本从第二数据存储介质加载到高速缓存 不包含有效数据。
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公开(公告)号:US09213646B1
公开(公告)日:2015-12-15
申请号:US13922921
申请日:2013-06-20
Applicant: Seagate Technology LLC
Inventor: Margot Ann LaPanse , Joseph Masaki Baum , Stanton MacDonough Keeler , Michael Edward Baum , Thomas Dale Hosman , Robert Dale Murphy
CPC classification number: G06F12/0871 , G06F12/121 , G06F2212/1016 , G06F2212/214 , G06F2212/224 , G06F2212/313
Abstract: Systems and methods are disclosed for cache data value tracking. In an embodiment, a controller may be configured to select data; set a node weight for the data representing a cache hit potential for the data; store a first time stamp value for the data representing when the data was accessed; and store the data in a cache memory based on the node weight and the first time stamp value. In another embodiment, a method may comprise setting a node weight for data associated with a data access command, storing a first access counter value for the data representing a number of times new data has been stored to the cache memory when the data was accessed, and removing the data from the cache memory or maintaining the data in the cache memory based on the node weight and the first access counter value.
Abstract translation: 公开了用于高速缓存数据值跟踪的系统和方法。 在一个实施例中,控制器可以被配置为选择数据; 为表示数据的缓存命中潜力的数据设置节点权重; 存储表示访问数据的数据的第一时间戳值; 并且基于节点权重和第一时间戳值将数据存储在高速缓冲存储器中。 在另一个实施例中,一种方法可以包括设置与数据访问命令相关联的数据的节点权重,当访问数据时,存储表示新数据已被存储到高速缓冲存储器的次数的数据的第一访问计数器值, 以及基于节点权重和第一访问计数器值从高速缓冲存储器中移除数据或将数据保持在高速缓冲存储器中。
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