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From Abdul Rasool <rasool...@gmail.com>
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.

Thanks
AR


On 14 January 2015 at 22:55, Geoff Higginbottom <
geoff.higginbottom@shapeblue.com> 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
>
> geoff.higginbottom@shapeblue.com
>
> -----Original Message-----
> From: Len.Bellemore@alternativenetworks.com [mailto:
> Len.Bellemore@alternativenetworks.com]
> Sent: 14 January 2015 16:43
> To: users@cloudstack.apache.org
> 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 [mailto:rasoolsam@gmail.com]
> Sent: 14 January 2015 16:28
> To: users@cloudstack.apache.org
> 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
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