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Intro questions on failover/redundancy

asked 2013-07-03 13:40:37 -0500

gossamer gravatar image

Hi, I'd like to implement openstack for the first time to be used as a mailserver. I have a long sysadmin background, including using shared filesystems, but not with cloud apps.

If I understand all this correctly, this is done as multiple vm's on the same hardware.

How do you have a single system span multiple physical machines to prevent a single point of failure with networking, storage, and services?

I intend to use postfix, dovecot, and apache as my primary services. Do the applications have to be written to communicate between instances, or can the stock fedora RPMs work with the cloud software to create redundancy and/or failover?

Thanks, Alex

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Hi, I posted this question a few days ago and haven't received any replies. Am I not phrasing my question properly or clearly?

I saw a press release today about RH releasing RHEL into the OpenStack cloud in July. Does this mean that no one has yet set up OpenStack on their own to be fault-tolerant?

gossamer gravatar imagegossamer ( 2013-07-05 07:55:26 -0500 )edit

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answered 2013-07-12 22:53:19 -0500

ken-hui gravatar image

OpenStack redundancy involves multiple layers and various components have to be configured differently for HA. I recommend reading the HA Guide here -

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Asked: 2013-07-03 13:40:37 -0500

Seen: 995 times

Last updated: Jul 12 '13