Invention Grant
US08195865B2 Computer system having an expansion device for virtualizing a migration source logical unit
有权
具有用于虚拟化迁移源逻辑单元的扩展装置的计算机系统
- Patent Title: Computer system having an expansion device for virtualizing a migration source logical unit
- Patent Title (中): 具有用于虚拟化迁移源逻辑单元的扩展装置的计算机系统
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Application No.: US13189604Application Date: 2011-07-25
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Publication No.: US08195865B2Publication Date: 2012-06-05
- Inventor: Shunji Kawamura , Yasutomo Yamamoto , Yoshiaki Eguchi
- Applicant: Shunji Kawamura , Yasutomo Yamamoto , Yoshiaki Eguchi
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Brundidge & Stanger, P.C.
- Priority: JP2006-136869 20060516
- Main IPC: G06F13/00
- IPC: G06F13/00
Abstract:
A migration destination storage creates an expansion device for virtualizing a migration source logical unit. A host computer accesses an external volume by way of an access path of a migration destination logical unit, a migration destination storage, a migration source storage, and an external volume. After destaging all dirty data accumulated in the disk cache of the migration source storage to the external volume, an expansion device for virtualizing the external volume is mapped to the migration destination logical unit.
Public/Granted literature
- US20110296101A1 COMPUTER SYSTEM HAVING AN EXPANSION DEVICE FOR VIRTUALIZING A MIGRATION SOURCE LOGICAL UNIT Public/Granted day:2011-12-01
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