发明名称 |
Method and apparatus for detecting and preemptively ameliorating potential logic unit thrashing in a storage system having multiple requestors |
摘要 |
A method and apparatus for detecting and preemptively ameliorating potential logic unit thrashing in a storage system having multiple I/O requesters is disclosed. In response to detecting that each of two requesters has usable access to both of the active-passive pair of controllers, one of the active-passive pair of controllers is selected to be designated as an active resource controller. In response to detecting that one of the two requesters has usable access to only one of the active-passive pair of controllers, only one of the active-passive pair of controllers is selected to be designated as an active resource controller. In response to detecting that each of the two requesters has usable access only to different ones of the active-passive pair of controllers, one of the active-passive pair of controllers is selected to be designated as an active resource controller.
|
申请公布号 |
US2004107305(A1) |
申请公布日期 |
2004.06.03 |
申请号 |
US20030611127 |
申请日期 |
2003.07.01 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
BARTLETT ERIC JOHN;FUENTE CARLOS FRANCISCO;O'ROURKE NICHOLAS MICHAEL;SCALES WILLIAM JAMES |
分类号 |
G06F13/10;G06F3/06;G06F11/20;G06F12/00;G06F13/00;G06F13/14;G06F13/18;(IPC1-7):G06F13/00 |
主分类号 |
G06F13/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|