On Tue, Sep 13, 2011 at 2:00 PM, Rudi Ahlers <Rudi@xxxxxxxxxxx> wrote:
> On Tue, Sep 13, 2011 at 1:52 AM, Thomas Dukes <tdukes@xxxxxxxxx> wrote:
>>
>>
>>> -----Original Message-----
>>> From: centos-bounces@xxxxxxxxxx
>>> [mailto:centos-bounces@xxxxxxxxxx] On Behalf Of ken
>>> Sent: Monday, September 12, 2011 12:36 AM
>>> To: CentOS mailing list
>>> Subject: Re: Vitualization and Partitioning
>>>
>>> On 09/11/2011 11:10 PM Emmanuel Noobadmin wrote:
>>> > Hi,
>>> >
>>> >> When I do the install, do I or should I setup a separate partition
>>> >> for guest
>>> > That would be better from a performance point of view
>>> >
>>> >> OS's? From the redhat docs, it looks like the guest OS's reside at
>>> >> /var/lib/libvirt/images/.
>>> > This should be using files as disk files, which I did and
>>> found it to
>>> > be a problem when there is heavy I/O.
>>>
>>> I like LVM (for the reasons you cite). Would you (anyone?)
>>> say it's best to have one LV per guest or one LV for all guests?
>>>
>>>
>>> tnx.
>>
>> I'm new to this but I would think you would want a separate LV for each
>> guest. Seems I read somewhere, that you need one core per guest as well.
>> That's why I'm opting for the Xeon processor rather than the iCore(x). Four
>> cores v. two. More options.
>>
>> Can't believe this thread hasn't stirred more response. Maybe we all are in
>> the learning phase.
>>
>> Eddie
>>
>> _______________________________________________
>
> We use LVM on all our virtual hosting servers since it's much easier to manage.
>
>
> You basically setup a PV volume spanning the whole drive(s), and then
> a 10GB (or larger if you need to) LVM volume for /root, 10GB for /var,
> 2GB for /tmp & 5GB for /home.
>
>
> Then for any VM's just add LVM volumes as needed, for example:
>
> /dev/Volume001/vm1_root - 10GB
> /dev/Volume001/vm1_swap - 1GB
>
>
> Another tip: Don't use the default LVM volume naming scheme, but
> instead name the LVM volumes according to your server name, i.e.
> server01 & server02. This way if server01's HDD crashes and you need
> to mount it on server002 for recovery purposes, you won't have
> conflicting LVM volumes
>
>
Hi, Interesting subject. Let me participate too. Suppose we are going
to install 3 VMs, I think it is proper to create separate LVMs like
this
/dev/vg_server1/lv.server1
and mount it as
/var/lib/libvirt/images/server1
/dev/vg_server2/lv.server2
and mount it as
/var/lib/libvirt/images/server2
/dev/vg_server3/lv.server3
and mount it as
/var/lib/libvirt/images/server3
If I mount in that way, Is it possible to take live snapshot backup
while these 2 servers are running?
Hope to hear from you..
> --
> Kind Regards
> Rudi Ahlers
> SoftDux
>
> Website: http://www.SoftDux.com
> Technical Blog: http://Blog.SoftDux.com
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--
Thank you
Indunil Jayasooriya
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