October 2009
Beginner to intermediate
298 pages
7h 11m
English
Content preview from VMware CookbookBecome 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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Chapter 5. Useful Command-Line Tools
Many important VMware-related tips will take you from vCenter to the console. Along with other things in this chapter, we’ll examine some important command-line utilities that will aid you in monitoring and configuring your ESX Server, and we’ll take a look at general best practices for setting up services that will be crucial to your ESX Server.
5.1. Entering Maintenance Mode via the Command Line
Problem
You are unable to access your vCenter GUI and you want to put your ESX Server into maintenance mode.
Solution
Log into your ESX host via SSH or directly from the console.
Discussion
To enter maintenance mode, use this command:
vimsh -n -e /hostsvc/maintenance_mode_enter
To exit maintenance mode, enter:
vimsh -n -e /hostsvc/maintenance_mode_exit
These commands are undocumented and unsupported by VMware. However, they work correctly in ESX 3.x. Alternatively, you can use the VI Perl ToolKit to initiate maintenance mode via the API provided by VMware.
5.2. Displaying Server Information
Problem
You want to display current information about your ESX Server.
Solution
Run the esxcfg-info command
on the ESX Server.
Discussion
This command-line tool is a powerful yet simple way to find out
about your ESX Server and its environment. By using the esxcfg-info command, you can get detailed
information about your configuration and server hardware:
$ esxcfg-info -h Usage: esxcfg-info mode -a, --all Print all information -w, --hardware Print hardware information -r, --resource ...Become 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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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.