On-line storage moving method, device and the server of virtual machine system

On-line storage moving method, device and the server of virtual machine system

  • CN 103,902,233 B
  • Filed: 05/10/2013
  • Issued: 09/11/2018
  • Est. Priority Date: 12/27/2012
  • Status: Active Grant
First Claim
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1. a kind of online storage moving method of virtual machine system, which is characterized in that the method includes:

  • According to source storage size of the original image disk file of virtual machine system in source storage device, in targetHold the destination end memory space divided in storage device not less than the source storage size;

    The original image disk file is copied to the destination end memory space executing from the source memory spaceIt replicates in operating process, is asked for the data writing operation of the virtual machine system, according to the writing position of data to be writtenWith the offset distance of source memory space initial position, divided and size of data phase to be written from the destination end storage deviceSame new memory space has described inclined between the initial position and destination end memory space initial position of the new memory spaceMove distance, wherein the writing position of the data to be written is except the source memory space of the source storage device;

    It willThe writing position of the source storage device and the new storage sky of the destination end storage device is written in data to be written simultaneouslyBetween;

    For the reading data operation request of the virtual machine system, data are read from the source memory space;

    In response to the end position for replicating operation and reaching the original image disk file, stop the duplication operation;

    The storage location of the mirrored disk file of the virtual machine system is switched to the target by the source storage deviceStorage device is held, the on-line storage migration of virtual machine system is completed.

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