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[Xen-devel] XEN migration architecture question
| To: | xen-devel@xxxxxxxxxxxxxxxxxxxxx |
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| Subject: | [Xen-devel] XEN migration architecture question |
| From: | Eric Tessler <maiden1134@xxxxxxxxx> |
| Date: | Thu, 20 Jan 2005 12:44:40 -0800 (PST) |
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| Delivery-date: | Thu, 20 Jan 2005 20:45:29 +0000 |
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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?
Thanks,
Eric
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