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1. 发明授权

US07454561B1 Method for operating disk drives in a data storage system 有权
标题翻译：在数据存储系统中操作磁盘驱动器的方法
公开(公告)号：US07454561B1
公开(公告)日：2008-11-18
申请号：US11153932
申请日：2005-06-16
申请人： Phillip Fultz , Ashok Tamilarasan , Michael Manning , Thomas Dibb
发明人： Phillip Fultz , Ashok Tamilarasan , Michael Manning , Thomas Dibb
IPC分类号： G06F13/00
CPC分类号： G06F11/0772 , G06F11/0727 , G06F11/1662 , G06F11/2094
摘要： A system sets a disk access inhibitor flag whenever a disk drive is placed by the system in an inaccessible condition. The drive operates to set a bit therein when the drive has placed itself in a by-pass condition. During each polling event, the system determines: (1) whether the bit has been set; and (2) whether the disk access inhibitor flag has been set. If the bit has been set and such disk access inhibitor flag has been set, the system maintains the drive in the inaccessible condition; otherwise, the drive is accessible to the system. If, during a polling event, the bit has been set but that drive has not had a bit set during a relatively long period of time, the system maintains the drive accessible to the system unless the drive sets the bit during a subsequent predetermined wait period, after which the system sets the flagdisk access inhibitor flag and places the drive in the inaccessible condition.
摘要翻译：每当系统在不可访问的条件下放置磁盘驱动器时，系统设置磁盘访问抑制器标志。当驱动器自身处于旁路状态时，变频器会将其置于其中。在每个轮询事件期间，系统确定：（1）该位是否被设置; 和（2）磁盘访问禁止标志是否被设置。如果该位已经设置，并且已经设置了这样的磁盘访问抑制器标志，则系统将驱动器维持在不可访问的状态; 否则，系统可以访问驱动器。如果在轮询事件期间该位已被设置，但是该驱动器在较长的时间段内没有设置位置，则系统将该驱动器保持为可访问的驱动器，除非该驱动器在随后的预定等待期间内设置该位之后，系统将设置flagdisk访问禁止标志，并将驱动器置于无法访问的状态。

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