公开(公告)号：US20130326152A1

公开(公告)日：2013-12-05

申请号：US13485557

申请日：2012-05-31

申请人： Juan R. Loaiza ,  KOTHANDA UMAMAGESWARAN ,  BORIS ERLIKHMAN ,  DAVID FRIEDMAN ,  JIA SHI ,  ZUOYU TAO ,  ALEX TSUKERMAN

发明人： Juan R. Loaiza ,  KOTHANDA UMAMAGESWARAN ,  BORIS ERLIKHMAN ,  DAVID FRIEDMAN ,  JIA SHI ,  ZUOYU TAO ,  ALEX TSUKERMAN

IPC分类号： G06F12/08

CPC分类号： G06F11/2082 ,  G06F3/0629 ,  G06F12/00 ,  G06F12/08 ,  G06F12/0802

摘要： Dirty data in a storage device is made current through rapid re-silvering, which uses a mirrored and up-to-date version of the dirty data from another storage device to recover the data. Because under rapid re-silvering cache metadata in volatile memory survives the failure of the cache, the cache metadata is used to determine which subset of data from the other storage device needs to be copied to the storage device being re-silvered. During re-silvering, cache metadata is used to determine which I/O requests from clients are requests for data that is not stale.

摘要翻译： 存储设备中的脏数据通过快速重新刷新而成为最新版本，其使用来自另一存储设备的镜像和最新版本的脏数据来恢复数据。 因为在快速重新刷新缓存中，缓存中的元数据可以在高速缓存的故障中幸存下来，所以使用高速缓存元数据来确定来自其他存储设备的哪个数据子集需要被复制到被重新映射的存储设备。 在重新镀银期间，使用缓存元数据来确定来自客户端的哪些I / O请求是不过时的数据请求。

公开(公告)号：US20130086330A1

公开(公告)日：2013-04-04

申请号：US13288785

申请日：2011-11-03

申请人： BHARAT CHANDRA BADDEPUDI ,  JUAN R. LOAIZA ,  WEI-MING HU ,  KOTHANDA UMAMAGESWARAN ,  ALEX TSUKERMAN ,  BORIS ERLIKHMAN ,  J. WILLIAM LEE ,  JIA SHI ,  KIRAN B. GOYAL ,  SELCUK AYA

发明人： BHARAT CHANDRA BADDEPUDI ,  JUAN R. LOAIZA ,  WEI-MING HU ,  KOTHANDA UMAMAGESWARAN ,  ALEX TSUKERMAN ,  BORIS ERLIKHMAN ,  J. WILLIAM LEE ,  JIA SHI ,  KIRAN B. GOYAL ,  SELCUK AYA

IPC分类号： G06F12/08

摘要： A storage device uses non-volatile memory devices for caching. The storage device operates in a mode referred to herein as write-back mode. In write-back mode, a storage device responds to a request to write data by persistently writing the data to a cache in a non-volatile memory device and acknowledges to the requestor that the data is written persistently in the storage device. The acknowledgement is sent without necessarily having written the data that was requested to be written to primary storage. Instead, the data is written to primary storage later.

摘要翻译： 存储设备使用非易失性存储器件进行缓存。 存储设备以这里称为回写模式的模式操作。 在回写模式中，存储装置通过将数据持久地写入非易失性存储装置中的高速缓存来响应写入数据的请求，并向请求者确认数据被永久写入存储装置。 发送确认不一定已经写入请求写入主存储器的数据。 相反，稍后将数据写入主存储。