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From Mike Tutkowski <mike.tutkow...@solidfire.com>
Subject Re: HA for VMWare
Date Thu, 11 Jul 2013 05:53:23 GMT
This is sort of related to this topic.

It sounds like CS relies on vCenter for HA.

How about for XenServer and KVM?

I don't think KVM has any notion of HA, so I assume CS handles it for KVM.
Is that true?

With XenServer, is CS the only entity that handles HA or can that be
enabled within XenServer and CS is OK with that (as long as it is perhaps
not also enabled within CS)?

Thanks!


On Wed, Jul 10, 2013 at 11:22 PM, Koushik Das <koushik.das@citrix.com>wrote:

> That's right. Cloudstack relies on native HA capabilities provided by
> vSphere.
>
> > -----Original Message-----
> > From: Kirk Kosinski [mailto:kirkkosinski@gmail.com]
> > Sent: Thursday, July 11, 2013 6:30 AM
> > To: users@cloudstack.apache.org
> > Cc: Chip Childers; dev@cloudstack.apache.org
> > Subject: Re: HA for VMWare
> >
> > Hi, unless something changed (I checked 4.0/4.1 release notes and found
> > nothing), CloudStack uses the native vSphere HA (unlike XenServer and
> > KVM), so HA must be enabled in a CloudStack-managed vSphere for HA to
> > work.  Shutting down a VM through vCenter is probably seen as a valid
> > shutdown (same as shutting down through CS UI/API) and doesn't trigger HA
> > even if it is enabled in vSphere.  This might be different for other
> hypervisors
> > since VMSync for vSphere is different.
> >
> > Best regards,
> > Kirk
> >
> > On 07/10/2013 01:03 PM, Chip Childers wrote:
> > > It "should" work for CS to do the HA (typically with the VMware
> > > cluster *not* having HA enabled).
> > >
> > > Nicolas, perhaps open a bug?
> > >
> > > On Wed, Jul 10, 2013 at 4:01 PM, Jörgen Maas <jorgen.maas@gmail.com>
> > wrote:
> > >> This should be done by ESX instead of CS, to CS ESX hypervisor is
> > >> externally managed (vCenter) I guess you need to enable HA in your
> > >> vmware configuration
> > >>
> > >>
> > >> On Wed, Jul 10, 2013 at 12:11 PM, <nicolas.lamirault@orange.com>
> wrote:
> > >>
> > >>> Hi,
> > >>> We are testing CS 4.1.0 with VMWare vSphere 5.0.
> > >>> If we stop a VM using vCenter, CS doesn't try to restart it. In logs
> > >>> we see :
> > >>>
> > >>> Skip HA for VMware VM i-xxxxxx
> > >>>
> > >>> In source code, we can see :
> > >>>
> > >>> @Override
> > >>>     public void scheduleRestartForVmsOnHost(final HostVO host,
> > >>> boolean
> > >>> investigate) {
> > >>>
> > >>>  [...]
> > >>>
> > >>>  if(host.getHypervisorType() == HypervisorType.VMware) {
> > >>>             s_logger.info("Don't restart for VMs on host " +
> > >>> host.getId() + " as the host is VMware host");
> > >>>             return;
> > >>>         }
> > >>>
> > >>>
> > >>>  [...]
> > >>>
> > >>> }
> > >>>
> > >>>
> > >>> So, CS does not care to restart the VM ?
> > >>> Regards.
> > >>>
> > >>>
> > >>> --
> > >>> Nicolas Lamirault
> > >>>
> > >>>
> > >>>
> > __________________________________________________________
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> > >>> _____________________________________________________
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> > >>> ce message par erreur, veuillez le signaler a l'expediteur et le
> > >>> detruire ainsi que les pieces jointes. Les messages electroniques
> > >>> etant susceptibles d'alteration, Orange decline toute responsabilite
> > >>> si ce message a ete altere, deforme ou falsifie. Merci.
> > >>>
> > >>> This message and its attachments may contain confidential or
> > >>> privileged information that may be protected by law; they should not
> > >>> be distributed, used or copied without authorisation.
> > >>> If you have received this email in error, please notify the sender
> > >>> and delete this message and its attachments.
> > >>> As emails may be altered, Orange is not liable for messages that
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> > >>> Thank you.
> > >>>
> > >>>
> > >>
> > >>
> > >> --
> > >> Grtz,
> > >> Jörgen Maas
>
>


-- 
*Mike Tutkowski*
*Senior CloudStack Developer, SolidFire Inc.*
e: mike.tutkowski@solidfire.com
o: 303.746.7302
Advancing the way the world uses the
cloud<http://solidfire.com/solution/overview/?video=play>
*™*

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