Invention Grant
US08266636B2 Virtualize, checkpoint, and restart system V IPC objects during checkpointing and restarting of a software partition
失效
虚拟化，检查点和重新启动系统V IPC对象在检查点和重新启动软件分区
- Patent Title: Virtualize, checkpoint, and restart system V IPC objects during checkpointing and restarting of a software partition
- Patent Title (中): 虚拟化，检查点和重新启动系统V IPC对象在检查点和重新启动软件分区
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Application No.: US12242156Application Date: 2008-09-30
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Publication No.: US08266636B2Publication Date: 2012-09-11
- Inventor: Satish Narayan Kharat , Rajeev Mishra , Lance Warren Russell , Suresh Sabarathinam
- Applicant: Satish Narayan Kharat , Rajeev Mishra , Lance Warren Russell , Suresh Sabarathinam
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Yee & Associates, P.C.
- Agent David A. Mims, Jr.
- Main IPC: G06F3/00
- IPC: G06F3/00 ; G06F9/44 ; G06F9/46 ; G06F13/00
Abstract:
Migrating a workload partition (WPAR) is provided. Responsive to receiving a request to checkpoint the WPAR, a list of virtual identifiers used by the WPAR to refer to IPC objects is generated and stored. Each virtual identifier corresponds to an IPC object and to a real identifier used by a kernel that corresponds to the IPC object. IPC object data and control information is collected and stored. Each process in the WPAR stores per process data. Responsive to receiving a request to restart the WPAR, the virtual identifier that the WPAR wants to be used is registered. A new IPC object is created by a kernel. The kernel maps a real identifier used by the kernel for the new IPC object to the registered virtual identifier. The restart process retrieves IPC data and control information and overlays it on the new IPC object. The per process data is restored.
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