发明名称 |
System and method for dynamically assigning I/O priority |
摘要 |
A system for controlling I/O transfers includes a host system or initiator including an adapter driver layer; and a storage controller. The storage controller includes a priority store and an operation queue. The adapter driver is selectively responsive to a datapath command from an initiator application for setting a default I/O priority for a specified logical unit, for storing the default I/O priority for the logical unit to a priority store of the storage controller, and selectively responsive to a data transfer command from an initiator application for storing the data transfer command to the storage controller. The storage controller is responsive to the datapath command for storing the I/O priority default value for the logical unit to the priority store; and responsive to the data transfer command with respect to the logical unit for queuing the data transfer command for execution based on the I/O priority default value.
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申请公布号 |
US7366800(B2) |
申请公布日期 |
2008.04.29 |
申请号 |
US20030683149 |
申请日期 |
2003.10.09 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
FLYNN, JR. JOHN THOMAS |
分类号 |
G06F3/00;G06F3/06;G06F13/38 |
主分类号 |
G06F3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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