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公开(公告)号:US07526605B2
公开(公告)日:2009-04-28
申请号:US11118157
申请日:2005-04-29
IPC分类号: G06F13/14
CPC分类号: G06F3/0659 , G06F3/0611 , G06F3/0676
摘要: Multiple disk access commands such as XOR commands are broken down into their constituent read and write parts and, if in LBA sequence, coalesced into pipes. These XOR read and write commands are then provided to the RPO algorithm of the HDD for scheduling along with data reads and writes. The actual XOR buffer operation is also scheduled by the RPO algorithm, advantageously to occur during a seek for another read or write.
摘要翻译: 多个磁盘访问命令(如XOR命令)被分解为其组成的读写部分,如果是LBA序列,则将其合并到管道中。 然后将这些XOR读写命令提供给HDD的RPO算法,用于与数据读取和写入一起进行调度。 实际的XOR缓冲器操作也由RPO算法进行调度,有利地在寻求另一次读或写期间发生。
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2.
公开(公告)号:US07334081B2
公开(公告)日:2008-02-19
申请号:US11117972
申请日:2005-04-29
IPC分类号: G06F12/00
CPC分类号: G11B20/10 , G11B5/59627 , G11B2020/10916
摘要: An RPO algorithm in a HDD coalesces LBA-sequential XOR commands in pipes, and passes the pipes to a lower level execution engine. The execution engine executes XOR reads and write separately to optimize performance using head and/or cylinder skew information to approach the nominal disk data rate.
摘要翻译: HDD中的RPO算法在管道中合并LBA-序列XOR命令,并将管道传递到较低级别的执行引擎。 执行引擎执行XOR读取和单独写入,以使用头部和/或柱面偏移信息来优化性能以接近标称磁盘数据速率。
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