OpenStack-HPC

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November 2012

2 participants
2 discussions

High bandwidth networking with openstack
by Narayan Desai 27 Nov '12

27 Nov '12

I've finally finished my writeup describing the experiments that we performed using Openstack to drive a wide area 100 gigabit network. I've included all of the details for configuration and tuning, as well as speculation why we're seeing such good numbers. tl;dr: you can push a whole lot of network bandwidth out of an openstack deployment with kvm/virtio; we hit 98 gigabits peak with 10 instances across 50 ms of latency. The post is here: http://buriedlede.blogspot.com/2012/11/driving-100-gigabit-network-with.html I'm happy to discuss this in more detail, if there are additional questions. -nld

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Ceph + Nova
by JuanFra Rodríguez Cardoso 21 Nov '12

21 Nov '12

Hi everyone: I'd like to know your opinion as nova experts: Would you recommend CephFS as shared storage in /var/lib/nova/instances? Another option it would be use GlusterFS or MooseFS for /var/lib/nova/instances directory and Ceph RBD for Glance and Nova volumes, don't you think? Thanks for your attention. Best regards, JuanFra

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