Re: [sami] Trying to figure out where we are

[Thomas Narten <[e-mail]>]

"zhangyunfei" <[e-mail]> writes:

> I can share a use case here from our point of view in data center
> operation(will detail this in the upcoming draft as Yingjie said): We
> are considering running different services (e.g., VoIP and streaming
> services) by VM in the same cluster withinn data center. We know
> different services show different user visiting behaviors. For
> example, in the midnight, there are few VoIP usage while there are
> still large amount of streaming usage( this is just an example, maybe
> not so accurate to fit with the reality). In such case, we'd like
> merge the existing VoIP and streaming services into fewer machines and
> cut down the machines running only few VoIP usage to reduce the power
> consumption.  In this senario, we need to consider how to migrate the
> existing VM states.

How is this any different than standard VM migration as practiced
today? What special requirements result from the above scenario?

The topic of this effort is "state migration". In order to make
progress, we need to be very specific about what kind of state and in
what devices needs to be transferred. And why existing approaches as
practiced today are insufficient.

If folk cannot (in one or two paragraphs) answer the above questions,
I do not think writing an Internet Draft about the above would be a
good use of anyone's time.

Thomas