[et-mgmt-tools] koan --virt: lvm support

[Michael DeHaan]

Johan Huysmans wrote:
> I noticed the koan parameter --virt-path and tried creating a vhost
> with following command:
> koan --server <some-ip> --virt --profile CentOS5-xen-i386 -P VolGroup00
>
> The profile and kickstart files are generated by an import from the CentOs5 DVD.
>
> This command creates 1 lv. The domU uses this as a disk (xvda) and
> creates partitions on this.
> It is working, but not really the thing i want.
>
> I want that koan will create multiple lv's on the dom0. Each lv on
> dom0 is a partition on domU. This means that the lv is directly
> formatted in the dom0, and you can mount that logical volume like a
> normal lv (it IS a normal volume) in the dom0.
>
> Is this (allready) possible with koan (or virt-inst)?
>   

I believe you are stuck with the extra level of indirection -- that is 
that partitions in your host (dom0) appear
as disks in your domU -- with both tools.   I don't think you can feed a 
partition up without a corresponding virtual disk :)

(Note that you don't have to use LVM for this -- regular partitions work 
too)

--Michael







> Greetings,
> Johan Huysmans
>
>
> On 9/4/07, Michael DeHaan <mdehaan at redhat.com> wrote:
>   
>> Johan Huysmans wrote:
>>     
>>> Hi All,
>>>
>>> In March this year Fred posted a request on this mailinglist:
>>> http://www.redhat.com/archives/et-mgmt-tools/2007-March/msg00119.html
>>>
>>>       
>> Implemented.
>>
>> See the documentation for --virt-path in the koan manpage.
>>
>>
>>     
>>> What is the status of this request, is it working in the latest version of koan?
>>>
>>> I noticed that it is now possible to use a logical volume as a disk,
>>> but it is also possible to use logical volumes on dom0 as partitions
>>> on domU?
>>>
>>>       
>> There are three ways storage can be specified:
>>
>> -- basic disk images on the filesystem (default behavior)
>> -- specifying a logical volume group that has free space in it, where
>> then koan will carve a paritition out of it named after the virtual machine
>> This allows for using a common LVM group for all your virtual machines,
>> which is rather useful.
>> -- specifying a specific partition for koan to use as storage.
>>
>> I hope that answers the question!
>>
>> Recently a few folks have been asking for ways to specify multiple
>> "disks" for their configurations ... and that's something I am going to
>> be looking at.
>>
>>     
>>> Thanks for the information,
>>> Johan Huysmans
>>>
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>>>
>>>       
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>>     
>
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