Ok, there seems to be a lot of conflicting information out there. Some
people are saying its possible, some people are saying the kvm gets
destroyed first and pretty much created from scratch, and others are
saying its possible with xenserver. FYI, I will be using KVM.
Without any crazy workarounds or custom templates, can Openstack resize
kvm linux guests and keep data in tack? This is something I have to do
quite often with my xen (xen.org) cluster that is managed with cloudmin,
so its a very important feature to me that I can continue to be able to
do it when switching to kvm/openstack.
Thanks everyone for your time!
-Mark
On 2013-09-02 03:31, Bob Ball wrote:
Hi Mark,
Just to add to this - if you use XenServer as the underlying
hypervisor then yes, it can perform automatic resize of the partitions
when you resize an instance between two flavors.
I believe you need to set auto_disk_config=True for the instance - at
which point the expectation is that you have a single partition and
are using EXT3 or EXT4. See
https://github.com/openstack/nova/blob/master/nova/virt/xenapi/vm_utils.py#L798
for the technical details.
This occurs when you issue the nova command to resize an instance
between the flavors and requires you to be running XenServer with the
EXT3 SR type - see
http://docs.openstack.org/trunk/openstack-compute/admin/content/introduction-to-xen.html
for more details on setting up XenServer.
Thanks,
Bob
-----Original Message-----
From: Mark Chaney [mailto:[email protected]]
Sent: 30 August 2013 07:15
To: [email protected]
Subject: [Openstack] can instances be resized?
I am going to be hosting mainly Ubuntu, CentOS, and some Debian
instances with my openstack "cloud". Can instances be resized when it
comes to their storage? Obviously not only does its disk need to be
resized, but its FS as well. I am hoping openstack can take care of
all
of that.
Thanks,
Mark
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