Invention Grant
- Patent Title: Management of a reserve forever device
- Patent Title (中): 管理一个储备永远的设备
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Application No.: US12358170Application Date: 2009-01-22
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Publication No.: US08260927B2Publication Date: 2012-09-04
- Inventor: Juan Alonso Coronado , Russell Bernard Krueger , Christina Ann Lara , Beth Ann Peterson , Xavier Edgar Somoza , Aaron Eugene Taylor
- Applicant: Juan Alonso Coronado , Russell Bernard Krueger , Christina Ann Lara , Beth Ann Peterson , Xavier Edgar Somoza , Aaron Eugene Taylor
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Konrad Raynes & Victor LLP
- Agent Rabindranath Dutta
- Main IPC: H04L29/06
- IPC: H04L29/06

Abstract:
A host reserves a device controlled by a controller that is coupled to the host. The controller starts a first timer, in response to a completion of input/output (I/O) operations on the device by the host, wherein the host continues to reserve the device after the completion of the I/O operations. The controller sends a notification to the host after an expiry of the first timer, wherein the notification requests the host to determine whether the device should continue to be reserved by the host. The controller starts a second timer, in response to receiving an acknowledgement from the host that the notification has been received by the host, wherein reservation status of the device reserved by the host is determined by the controller on or prior to an expiry of the second timer.
Public/Granted literature
- US20100185744A1 MANAGEMENT OF A RESERVE FOREVER DEVICE Public/Granted day:2010-07-22
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