[Openstack-operators] CentOS image

Eric Grejda eric.grejda at emergentspace.com
Wed Jul 24 13:00:33 UTC 2013

Hash: SHA1

On 07/23/2013 10:56 PM, Lorin Hochstein wrote:

> I don't see any advantage to using LVM inside of VM images. I bring
> it up because CentOS partitions using LVM by default, so it's
> important to make explicit to the user that they need to do a
> single partition without LVM to use this script.


The way we use virtualization is that we have a small library of VM
templates which are pre-configured, patched, and hardened that we
instantiate for specific tasks.  There is no way of knowing ahead of
time how much storage space a VM is actually going to need (is it
going to be a file server? an IM server? a shell VM for a remote
user?) so we used LVM when setting up the file system in the template.
 That way, if a particular VM is likely to need more disk space we can
add an additional virtual drive to the VM of a more appropriate size
and grow the file system onto it.

- -- 
Eric Grejda - IT Administrator, Emergent Space Technologies
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