[CentOS] query regarding virtual machine space increase

benedict dcunha sylvan.dcunha at gmail.com
Mon Dec 27 18:21:38 UTC 2010


Dear Guys,

Thanks and really appreciate you kind and immediate replies
actually i am quite a novice in virtual machines and as usual after some
reading went through the wizard in virt manager

Now when it comes to the page for specifying the disk space i see the
following
as warning
(if you don't allocate the entire disk now , space will be allocated as
needed  while the virtual machine is running)

Now as per the message i was thinking that I would just give the minimum
space for the OS and xen would allocate space as I install software and put
data and files as required
So guess basically I was wrong in interpreting the message
Now I began to understand and as leen says .. the space specified in the
wizard is the maximum and Xen in no way will allocate more space than
specified in the wizard
so it above message basically means that space is allocated and managed  by
xen within the maximum space specified in tghe wizard.
I hope i am right with the above

so I gonna delete the virtual machine and create a new one since I have
about 400gb and plan to have 2 virtual machines

apprecite if you share your views

thanks and regards

simon



On Mon, Dec 27, 2010 at 11:01 AM, Leen de Braal <ldb at braha.nl> wrote:

> > Dear All,
> >
> > I am sorry for this post if at all i used the wrong forum but I guess
> > someone out there will be there to advise me and help me out and would be
> > really apprecite and be grateful
> > i have new to xen and has setup my first virtual machine
> >
> > I have a centos 5.5 xen server working perfect and have installed a
> > virtual
> > 2008 server and its working fine .
> > Actually i created the virtual machine in manager installation wizard
> with
> > the following option.
> > in the storage option I selected File (disk Image)
> > the location /var/lib/xen/images/image.img ( I have about 400gb free in
> > /var
> > partition)
> > size i choose 15000 mb
> > deselect the checkbox ... allocate entire virtual disk now
> >
> > since the below warning says
> >
> > if you dont allocate the entire disk now , space will be allocated as
> > needed
> > while the virtual machine is running .
> >
> > The 2008 server was installed perfect. and also I did install some
> > software
> > and c drive showed me 800 mb free
> >
> > now I tried to copy 1 gb file to my virtual machine and it said I dont
> > have
> > space .
> >
> > Now I was thinking that additional space would be allocated on the fly as
> > the note says above
> >
> > i am just wondering why its not allocating more space or what would be
> the
> > ideal way now for allocating more space
> >
>
> 15GB is way too low for server2008, take 60gb at least (don't know what
> you want to do with it).
> Your server is allocating space untill the 15GB you gave it. It is a max.
>
> >
> > if I wanna create a new virtual machine choosing the block device(
> > partition
> > option) is the correct way to avoid this problem??
> >
> > I actually would like the virtual machine to use as much as it requires
> as
> > long as there is free space on my local disk
>
> Give it more than needed, and let xen do the allocating (as you have set).
>
> >
> > apprecite your kinfd advice and help
> >
> >
> > regards
> > simon
> > _______________________________________________
> > CentOS mailing list
> > CentOS at centos.org
> > http://lists.centos.org/mailman/listinfo/centos
> >
>
>
> --
> L. de Braal
> BraHa Systems
> NL - Terneuzen
> T +31 115 649333
> F +31 115 649444
>
> _______________________________________________
> CentOS mailing list
> CentOS at centos.org
> http://lists.centos.org/mailman/listinfo/centos
>
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