cloudstack-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Abdul Rasool <>
Subject Re: VM showing half of the provisioned memory.
Date Thu, 15 Jan 2015 06:05:27 GMT
Hi Geoff,

Thanks for your support,

As you suggested I have disabled dynamically scalable option in my template
and stop/start the VM it is showing actual provisioning of RAM. as you
mention its a bug on ACS do you have any idea when will we have this bug
fixed ? as I understand the dynamically scalable correctly then, I am
wondering if my VMs hits peak usage then it will not automatically adjust
the resources.

Please correct me if my understanding is right.


On 14 January 2015 at 22:55, Geoff Higginbottom <> wrote:

> Hi Abdul,
> This was something Len and I discussed a while back but I am still seeing
> strange behaviour in my current 4.3.2 test system.
> What I am seeing is that Windows VMs get 4x the RAM allocated to them on
> the Hypervisor (XenServer) but the OS is also reporting 4x the RAM.
> Linux VMs are getting 2x the RAM allocated to them on the Hypervisor
> (XenServer) but the VM is still only reporting its allocated RAM.
> However if I recall when I first spotted this in earlier versions, Linux
> VMs would actually get LESS RAM allocated to them which sounds like what
> you are seeing.
> I'm sure I logged this as a bug and it looks like the behaviour has
> changed but it is still behaving strangely, at least on XenServer.
> I'm sticking with my previous advice to Len which was to not mark
> Templates as Dynamically Scalable.  As Len points out, you simply change
> the Template configuration and then Stop/Start  your VMs.
> Regards
> Geoff Higginbottom
> D: +44 20 3603 0542 | S: +44 20 3603 0540 | M: +447968161581
> -----Original Message-----
> From: [mailto:
> Sent: 14 January 2015 16:43
> To:
> Subject: RE: VM showing half of the provisioned memory.
> Hi Abdul,
> Are you running XenServer with Dynamic Scaling enabled on your templates?
> I had this issue and the only way to fix it was to disable the
> "Dynamically Scalable" option on my templates, then shut down my vms (not
> restart) and then bring them up again.  After that they received all of the
> memory. This was only on Linux machines. Windows vms are fine.
> I am using ACS 4.3. It sounds like a bug to me, but not sure.
> Len
> ---Original Message-----
> From: Abdul Rasool []
> Sent: 14 January 2015 16:28
> To:
> Subject: VM showing half of the provisioned memory.
> Hi,
> All the VM instances in ACS is showing half of the memory, actual
> provision to this particulate VM is 2GB but instance is showing only 1GB.
> could you please explain me why is this happening ?
> free -m
>              total       used       free     shared    buffers     cached
> Mem:           986        977          8          0          0         25
> -/+ buffers/cache:        951         35
> Swap:         8001       3995       4005
> Regards,
> AR
> Find out more about ShapeBlue and our range of CloudStack related services
> IaaS Cloud Design & Build<
> CSForge – rapid IaaS deployment framework<>
> CloudStack Consulting<>
> CloudStack Software Engineering<
> CloudStack Infrastructure Support<
> CloudStack Bootcamp Training Courses<
> This email and any attachments to it may be confidential and are intended
> solely for the use of the individual to whom it is addressed. Any views or
> opinions expressed are solely those of the author and do not necessarily
> represent those of Shape Blue Ltd or related companies. If you are not the
> intended recipient of this email, you must neither take any action based
> upon its contents, nor copy or show it to anyone. Please contact the sender
> if you believe you have received this email in error. Shape Blue Ltd is a
> company incorporated in England & Wales. ShapeBlue Services India LLP is a
> company incorporated in India and is operated under license from Shape Blue
> Ltd. Shape Blue Brasil Consultoria Ltda is a company incorporated in Brasil
> and is operated under license from Shape Blue Ltd. ShapeBlue SA Pty Ltd is
> a company registered by The Republic of South Africa and is traded under
> license from Shape Blue Ltd. ShapeBlue is a registered trademark.

  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message