CloudStack question on guests

[Brent Clark <bc...@tendrilinc.com>]

I have a CS 3.0 install with 2x KVM hosts. I recenlty built a new shiny CS
4.2 install with 3x KVM hosts. I am wondering what the process I should
follow to easly migrate guests from one CS version to the other.

It is as easy as removing the KVM host from the old version, slapping the
new agent onto it and adding it to the new CS?

Thanks!

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NOC Engineer

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Re: CloudStack question on guests

[Shanker Balan <sh...@shapeblue.com>]

Comments inline.

On 10-Feb-2014, at 11:15 pm, Brent Clark <bc...@tendrilinc.com> wrote:

> I have a CS 3.0 install with 2x KVM hosts. I recenlty built a new shiny CS
> 4.2 install with 3x KVM hosts. I am wondering what the process I should
> follow to easly migrate guests from one CS version to the other.

Each release of ACS has an upgrade guide. See below link for upgrading
from 3.0.x to 4.2.1:

http://cloudstack.apache.org/docs/en-US/Apache_CloudStack/4.2.1/html-single/Release_Notes/index.html#upgrade-from-3.0.x-to-4.2.1

The upgrade process would be transparent to the guests.


> It is as easy as removing the KVM host from the old version, slapping the
> new agent onto it and adding it to the new CS?

According to http://cloudstack.apache.org/docs/en-US/Apache_CloudStack/4.2.1/html-single/Release_Notes/index.html#upgrade-from-3.0.x-to-4.2.1, you don’t require
to remove and add the KVM host back again. Only a package upgrade and some
settings update to environment.properties should suffice.

I would first try the upgrade on a non-production setup to be safe. :)

HTH.
@shankerbalan


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