[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] RE: [Xen-devel] XEN migration architecture question
> I have an important question about XEN's migation operation > related to the XEN block and network back/front drivers. If > I migrate a domain from one machine to another in the middle > of heavy disk/network activity, what happnens to the > back/front end XEN drivers? (I see they have suspend/resume > operations but I don't believe they are being used) I see > that the front end drivers are passing machine addresses to > the back-end drivers - are these pointers somehow still valid > when a domain is moved to another machine? Shouldn't the > drivers wait until there is no I/O activity before being migrated? The front end drivers store enough information to be able to re-issue all unacknowleged IOs when resuming from a migration. Ian ------------------------------------------------------- This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting Tool for open source databases. Create drag-&-drop reports. Save time by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc. Download a FREE copy at http://www.intelliview.com/go/osdn_nl _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/xen-devel
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