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Storage controllers with dynamic WWN storage modules and methods for managing data and connections between a host and a storage device
Storage controllers with dynamic WWN storage modules and methods for managing data and connections between a host and a storage device
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机译:具有动态WWN存储模块的存储控制器以及用于管理主机与存储设备之间的数据和连接的方法
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摘要
A method and system for transferring data between a host and a Serial Attached Small Computer Interface (“SAS”) device using a storage controller is provided. The storage controller includes, a World Wide Name (“WWN”) module that includes a table having plural entries, wherein each row includes a WWN address, an initiator tag value field, an input/output counter value that tracks plural commands for a connection. A WWN index value represents the address of a row having plural entries. The method includes, comparing frame elements of incoming frames, including a unique WWN address with the WWN module entries; and if there is a match, updating a counter value for a connection between the storage controller and a device sending frames. The counter value is increased when a command frame is received and decreased when a command is executed and a response is sent to the device.
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