January 2018
Intermediate to advanced
398 pages
7h 54m
English
book
OpenStack Cloud Computing Cookbook - Fourth Edition
by Kevin Jackson, Cody Bunch, Egle Sigler, James Denton
Content preview from OpenStack Cloud Computing Cookbook - Fourth EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Removing a compute host from a host aggregate
If the properties of a host change, or the needs of an aggregate change, hosts can be removed from a host aggregate.
Getting ready
To remove a host from a host aggregate, you will need the following information:
- The
openstackcommand-line client - The
openrcfile containing appropriate credentials - The name or ID of the aggregate
- The name or ID of the host
How to do it…
- List hosts already in the aggregate with the following command:
openstack aggregate show cookbook-ssd-hostsThis will bring back an output like the following. Note that the
hostsfield shows the compute hosts that are currently associated with the host aggregate: - To remove the compute host from this host aggregate, issue the following command: ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.