Messages in this thread | | | Date | Tue, 11 Apr 2006 14:38:51 +0400 | From | Kirill Korotaev <> | Subject | Re: [Devel] Re: [RFC] Virtualization steps |
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Bill,
>> OpenVZ will have live zero downtime migration and suspend/resume some >> time next month. >> > Please clarify. Currently a migration involves: > - stopping or suspending the instance > - backing up the instance and all of its data > - creating an environment for the instance on a new machine > - transporting the data to a new machine > - installing the instance and all data > - starting the instance
> If you could just briefly cover how you do each of these steps with zero > downtime...
it does exactly what you wrote with some minor steps such as networking stop on source and start on destination etc.
So I would detailed it like this: - freeze VPS - freeze networking - copy VPS data to destination - dump VPS - copy dump to the destination - restore VPS - unfreeze VPS - kill original VPS on source
Moreover, in OpenVZ live migration allows to migrate 32bit VPSs between i686 and x86-64 Linux machines.
Thanks, Kirill
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