[Openstack] can instances be resized?
bob.ball at citrix.com
Mon Sep 2 13:59:21 UTC 2013
https://wiki.openstack.org/wiki/HypervisorSupportMatrix suggest that this feature only works with XenServer.
> -----Original Message-----
> From: Mark Chaney [mailto:mail at lists.macscr.com]
> Sent: 02 September 2013 14:56
> To: Bob Ball
> Cc: openstack at lists.openstack.org
> Subject: RE: [Openstack] can instances be resized?
> 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!
> 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
> s.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:mail at lists.macscr.com]
> >> Sent: 30 August 2013 07:15
> >> To: openstack at lists.openstack.org
> >> 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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