Virtual Storage Migration and Virtual Machine Monitor Patent Published

Strategic Insights -

A groundbreaking patent titled "METHOD AND SYSTEM FOR VIRTUAL STORAGE MIGRATION AND VIRTUAL MACHINE MONITOR" has been published by the World Intellectual Property Organization (WIPO) on November 10. The patent, assigned publication number WO/2011/137780, was filed by Huawei Technologies Co., Ltd. on May 17, 2011, under Application No. PCT/CN2011/074189.

Key Takeaways:

  • The patent proposes a method and system for virtual storage migration and virtual machine monitoring, aiming to avoid service interruptions caused by virtual machine halts.
  • The system involves initiating a data migration process to copy data blocks in virtual machine disks from a source storage device to a destination storage device.
  • As a front-end I/O read request of the virtual machine is received, the system directly reads corresponding data from the source storage device.
  • When a front-end I/O write request of the virtual machine is received, the system judges whether the migration data block to which the write request corresponds is in process of migration and waits until the migration is finished before executing the writing operation.
  • The system can switch the virtual machine disks from the source storage device to the destination storage device once all data blocks have been copied.
  • The invention addresses the issue of service interruption caused by virtual machine halts, providing a solution for seamless virtual storage migration.
  • Huawei Technologies Co., Ltd. is the applicant and inventive entity behind the patent.
  • The patent's inventors are Zhikun Wang, Xiaowei Yang, Feng Wang, and Jianhui Xu, all from China.

Statistics:

  • Publication Number: WO/2011/137780
  • Filing Date: May 17, 2011
  • Application Number: PCT/CN2011/074189
  • Inventive Entities: Huawei Technologies Co., Ltd
  • Inventors: Zhikun Wang, Xiaowei Yang, Feng Wang, Jianhui Xu
  • Country of Origin: China
  • Patent Category: Virtual Storage Migration and Virtual Machine Monitoring

Sources:

  • World Intellectual Property Organization (WIPO). Publication No. WO/2011/137780. November 10.