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From Francois Gaudreault <>
Subject Re: Windows Template Startup time
Date Mon, 29 Jun 2015 20:31:45 GMT
Windows instances are usually having a much bigger size than the typical 
Linux VM. It's normal to take longer. Even with 10GB network, it can 
take up to 5 minutes depending of the load on our SS.


On 2015-06-29 10:28 AM, Timothy Lothering wrote:
> Hi Prashant,
> There are a couple of questions here:
> 1. Has your hardware been configured for optimal I/O throughput?
> 2. Have you installed XenTools on the VM?
> Slow VM Template Deployment:
> Initial Template download from SS is dependent on the SSVM, CPU, RAM and Network speed.
Check that all of these have been configured to optimal speed & size. Initial template
deployment is "slow" as the template needs to be copied from SS first. Subsequent deployments
should be faster.
> Slow VM Reboot:
> This is dependent on the hardware configuration and whether PV drivers (XenTools) have
been installed.
> Kind Regards,
> Timothy Lothering
> Timothy Lothering
> Solutions Architect
> Managed Services
> T: +27877415535
> F: +27877415100
> C: +27824904099
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> -----Original Message-----
> From: prashant priyam []
> Sent: 29 June 2015 04:07 PM
> To:;
> Subject: Windows Template Startup time
> Hi,
> I have create a windows server 2012 R2 64 bit template with 8 vCPU and 16Gbs RAM and
350Gbs as Root Disk and created template on cloudstack 4.3 and xen server 6.2 .
> Now when I porvision vm with this template it takes around 15 minutes to start the VM
and after creation it again takes around 20 minutes to reboot the VM.
> Please help how can I minimize the reboot time .
> With warm regards,Prashant Priyam(+91-8802955489)

Francois Gaudreault
Gestionnaire de Produit | Product Manager - Cloud Platform & Services

CloudOps Votre partenaire infonuagique | Cloud Solutions Experts
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