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Revision as of 15:13, 24 January 2012 by Jforbes (talk | contribs) (Created page with "= KVM Live Block Migration = == Summary == Virtualize a performance monitoring unit for the guest's use == Owner == * Name: Justin M. Forbes == Current stat...")
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KVM Live Block Migration

Summary

Virtualize a performance monitoring unit for the guest's use

Owner

Current status

  • Targeted release: Fedora 17
  • Last updated: 2011-01-23
  • Percentage of completion: 50%

Detailed Description

Provide a live block copy feature, it allows an image backing a guest disk to be copied while the guest is online. It will be used to implement storage vm motion. Streaming feature allows the guest to start execution while the parent image reside remotely (with/without shared storage)

Benefit to Fedora

Key use cases and deployment scenarios 

1. Want to move the VM from low performing LUNs to high performing LUNs
2. Want to move from qcow to raw to improve performance
3. Want to free a LUN
4. Want to move a VM running on local storage to shared storage

Scope

Qemu userspace updates targeted for the 1.0 and 1.1 releases

How To Test

  • FIXME(Test plan to be written)

Comments and Discussion

http://wiki.qemu.org/Features/LiveBlockMigration

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