Hi David,

Good day to you, and thank you for your e-mail.

Most of my templates are on 100 GB root disk, which I understand is too
big. I plan to recreate the templates on a 10 GB disk, which should be
sufficient based on an advice from another member of this mailing list on
another thread.

Do you think that might be the cause? I hope that deployment time will be
much faster after I recreated the templates.

Thank you.


On Wed, Jul 24, 2013 at 1:22 AM, David Ortiz <dpor...@outlook.com> wrote:

> Indra,
>      How big are the templates you are attempting to deploy?  I could see
> the 1 Gbps connection being a little bit of a bottleneck, but it sounds
> like there may be something else going on.  I know we would have issues on
> our setup which is on 1 Gbps connections at the moment if we tried to do
> multiple snapshots at once, but we could normally get away with deploying a
> couple VMs at once within a few minutes.  As for the question about how
> they are being copied, I am not 100% confident on this, but I believe it is
> copied via the SSVM, so it would be going secondary storage --> hypervisor
> host --> primary storage.  Hopefully someone will correct me if I am wrong
> on that.
> -David
>
> > Date: Tue, 23 Jul 2013 12:33:17 +0800
> > Subject: Re: CloudStack performance issue
> > From: in...@sg.or.id
> > To: users@cloudstack.apache.org
> >
> > Hi David,
> >
> > Good day to you, and thank you for your e-mail.
> >
> > My secondary storage is connected to the switch using 1 Gbps connection,
> > while my primary storage is connected via a 10 Gbps connection.
> > Unfortunately I don't have 10G NIC cards on my secondary storage. Do you
> > think upgrading my secondary storage's NIC to 10 Gbps will help?
> >
> > May I know how the template and ISOs are being copied, is it through the
> > hypervisor host (e.g. secondary storage --> hypervisor host --> primary
> > storage) or directly (i.e. secondary storage --> primary storage)? My
> > primary storage is not on the same subnet/VLAN as secondary storage,
> since
> > it's connected to different NIC cards on the hypervisor hosts. If it's a
> > direct connection between secondary storage to primary storage without
> > going to the hypervisor, I might be considering changing my network
> > topology to make the primary and secondary storage to be on the same
> > subnet/VLAN.
> >
> > Looking forward to your reply, thank you.
> >
> > Cheers.
> >
> >
> > On Tue, Jul 23, 2013 at 3:19 AM, David Ortiz <dpor...@outlook.com>
> wrote:
> >
> > > Meant that question for Indra.  Sorry.
> > >
> > > > From: dpor...@outlook.com
> > > > To: users@cloudstack.apache.org
> > > > Subject: RE: CloudStack performance issue
> > > > Date: Mon, 22 Jul 2013 11:34:10 -0400
> > > >
> > > > Prasanna,
> > > >      What kind of network do you use for your setup?  Creating a new
> VM
> > > requires copying the template or ISO over from secondary storage to
> > > primary, so that could be a bottleneck when trying to create multiple
> VMs
> > > at once.
> > > > -Dave
> > > >
> > > > > Date: Sat, 20 Jul 2013 16:20:08 +0530
> > > > > From: t...@apache.org
> > > > > To: users@cloudstack.apache.org
> > > > > Subject: Re: CloudStack performance issue
> > > > >
> > > > > On Sat, Jul 20, 2013 at 03:18:12PM +0800, Indra Pramana wrote:
> > > > > >
> > > > > > Where can I start troubleshooting, which logs I need to go
> through
> > > to find
> > > > > > out the bottleneck? The management-server.log file doesn't show
> much
> > > > > > anything about the delay. It seems that there is some "locking"
> > > mechanism
> > > > > > and certain processes will need other processes to complete
> before
> > > they can
> > > > > > start. This is worrying since in a production environment, many
> > > customers
> > > > > > might want to try creating VMs at the same time simultaneously.
> > > > > >
> > > > >
> > > > > The logs of use would be managment-server.log which defaults to
> DEBUG
> > > > > mode. The logs on the agent (inside KVM host) are default in INFO
> > > > > mode. You can turn them up to DEBUG by altering the log4j config.
> > > > > Apart from that you can also look at libvirt logs. Folks have been
> > > > > tuning the deployment of the VMs on KVM host in another thread on
> dev@
> > > > > and in the bug
> https://issues.apache.org/jira/browse/CLOUDSTACK-3163
> > > > >
> > > > > let us know if the symptoms are the same and you can bring this up
> on
> > > > > dev@ with more details.
> > > > >
> > > > > > Any thoughts or feedback on this matter is appreciated.
> > > > > >
> > > > > > Looking forward to your reply, thank you.
> > > > > >
> > > > > > Cheers.
> > > > >
> > > > > --
> > > > > Prasanna.,
> > > > >
> > > > > ------------------------
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> > >
> > >
>
>

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