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Posts in Virtualization
Mapping ESX server devices to Linux devices
While poking around on one of our ESX 3.0 beta servers, I came across the esxcfg-vmhbadevs command. This nifty utility allows you to view the Linux device associated with a given VMWare device: In order to run esxcfg-vmhbadevs, you need to have access to the VMWare service console.
$ read more →Exporting Solaris zone configurations
I have been using Solaris 10 zone technology for the past 4 - 5 months, and just recently came across the zonecfg(am) "export" option. This option allows you to export the configuration from a specific zone, which can be used to recreate zones, or as a template when adding additional zones (with some adjustments of course). The following example prints the zone configuration for a domain called "irc": This is super useful, and can make creating 1000s of zones a snap!
$ read more →Xen article
While surfing for material on virtualization, I came across the following Dell Xen whitepaper. The article provides an introduction to server virtualization concepts, and is a good read if you are looking for an introduction to virtualization and Xen.
$ read more →Running commands across zones
While reading through Brendan Gregg's Solaris zones tutorial, I ran across his zonerun script. This nifty little script allows you to run a command across several Solaris zones (the script uses zlogin to accomplish the task): SunOS irc 5.10 Generic_118822-11 sun4u sparc SUNW,Ultra-5_10 SunOS sunonews 5.10 Generic_118822-11 sun4u sparc SUNW,Ultra-5_10 12:08pm up 1 day(s), 10:55, 1 user, load average: 0.59, 0.41, 0.18 12:08pm up 2 min(s), 0 users, load average: 0.59, 0.41, 0.18 This nifty script kinda reminds me of Sun cluster's ctelnet utility :)
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