0
votes
0answers
34 views

Openstack: Starting multiple shutoff intances

I am using Openstack Icehouse running on Ubuntu. After rebooting Compute node all instances that were running there will be in shutoff state. Is there way to restart them all at once? Only thing I ...
2
votes
1answer
47 views

Is it possible to let a web application use the combined hardware resources of a few server machines using Apache Mesos?

I am studying a framework called Apache Mesos. I am totally new to this framework. According to this website, it can combine your datacenter servers and cloud instances into one shared pool from ...
0
votes
1answer
154 views

How does migrating a running Virtual-Machine from one Hypervisor to another actually work?

How does migrating a running Virtual-Machine from one Hypervisor to another in a cloud environment actually work? I know that it is possible and that this feature exists. But what does actually ...
1
vote
2answers
246 views

Open source cloud computing with scalable virtual machines

I'm searching for open source software to create my own cloud computing environment, like Ubuntu UEC or Eucalyptus. What I need is that each virtual machine can use resources from multiple nodes ...
3
votes
2answers
1k views

(Eucalyptus, KVM) Why we need to split a VM into kernel image, ramdisk image, and disk image?

I'm new in using cloud computing technologies. There is a popular cloud software called Eucalyptus. I found that the way to start a VM in Eucalyptus is very different from Virtualbox. In Virtualbox, ...
1
vote
1answer
70 views

Server Virtualization

Is it a good Idea to install two or more virtual operating systems performing the same task on a single server instead of only one? If these virtual operating systems make a cloud, can they respond ...
2
votes
2answers
208 views

How do I make a Windows virtual machine replicate to another datacenter/cloud?

We have a Windows 2008 VM running IIS and SQL Server Express (it's an all-in-one web application). We need to have another copy at our secondary datacenter site. What is the best way to do this? It ...
2
votes
4answers
551 views

How to upload stuff to Amazon EC2 Windows instance?

I've never used Amazon EC2 - I am thinking to test a few instances for running intensive computation processes I have a requirement for rather than buying real hardware. I am given to understand the ...
0
votes
1answer
90 views

Benchmark of provisionning delays of various cloud providers

Cloud computing supposedly lets you instantiate on-demand processing power through additional VMs. The allocation process is frequently advertised as fast without further details. My personal ...