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Bug 905123 - finishing storage migration offline / persistent dirty bitmap support
finishing storage migration offline / persistent dirty bitmap support
Status: NEW
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: qemu-kvm (Show other bugs)
7.0
Unspecified Unspecified
unspecified Severity unspecified
: rc
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Assigned To: John Snow
Virtualization Bugs
:
Depends On:
Blocks: 1207657 883504
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Reported: 2013-01-28 11:19 EST by Paolo Bonzini
Modified: 2016-06-22 16:43 EDT (History)
11 users (show)

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Doc Type: Bug Fix
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RHEL 7.3 requirements from Atomic Host:


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Description Paolo Bonzini 2013-01-28 11:19:07 EST
When issuing the drive-mirror command for storage migration, you must restart the process from scratch if one of the following things happen: 1) QEMU crashes; 2) the VM is exited before QEMU is ready to pivot to the destination storage (before QEMU has reached "steady state").

This can be handled with a persistent dirty bitmap.  A new instance of QEMU, or a new qemu-img command can then be used to complete storage migration.
Comment 3 John Snow 2015-06-25 14:36:12 EDT
Will not land in QEMU 2.4 and thus will not land in RHEL 7.2. Actively being worked on upstream, Expected for 2.5.

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