I can still remember the first time I put together a vmware virtualcenter server with a few servers running the hypervisor. It was the first time I encountered software that left me speechless since it felt like it was built with magic, at the time since I simply couldnt comprehend how this could be done.
I ended up quitting the company I built it at because they didnt see the point of virtualization and werent going to implement it.
Good point - OpenVZ is quite good for userspace virtualization.
One thing Copper (what this demo is running on - http://www.gridcentriclabs.com/copper) can do that OpenVZ can't do is VM clone / page sharing across multiple physical servers. For example, if you wanted to clone thousands of desktops across a rack or two of servers.
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[ 3.2 ms ] story [ 20.2 ms ] threadI ended up quitting the company I built it at because they didnt see the point of virtualization and werent going to implement it.
Paging, ballooning, content-based sharing, CPU and RAM overcommit, all are there, provided you only use Linux VMs.
One thing Copper (what this demo is running on - http://www.gridcentriclabs.com/copper) can do that OpenVZ can't do is VM clone / page sharing across multiple physical servers. For example, if you wanted to clone thousands of desktops across a rack or two of servers.
Howto: Build and scale a Cassandra cluster in five minutes - http://blog.gridcentriclabs.com/2010/08/howto-build-and-scal...
Howto: Build a Hadoop cluster in five minutes - http://blog.gridcentriclabs.com/2010/07/howto-build-hadoop-c...
Howto: Build a ten node memcached cluster in five minutes - http://blog.gridcentriclabs.com/2010/07/how-to-build-10-core...
You may notice an interesting trend :)
[edit: formatting]