Best performance UNIX just for HOST Virtualization? Post: 303011872

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Top Forums UNIX for Beginners Questions & Answers Best performance UNIX just for HOST Virtualization? Post 303011872 by drysdalk on Wednesday 24th of January 2018 05:25:42 PM

01-24-2018

Registered User

Hi,

That's a very open-ended question without a clear answer. As always, it depends almost entirely on what exactly you're going to be doing, on your workload, on the OS your guests will be running, and a wide variety of other things.

For my part, speaking purely personally, I've found OpenVZ to offer excellent performance. It's a Linux-based container environment, where the host runs a modified kernel and the containers on the host depend on and inherit an instance of that modified kernel as their own. They therefore must be running Linux, but can be running a different Linux distribution from the host.

The very latest versions of OpenVZ allow for fully-isolated virtual machines, and so support running Windows guests too. Historically, it's been Linux-only however, with a separate and mostly architecturally unrelated Windows offering that's since been discontinued. There is a commercially supported version called Virtuozzo that comes with nice GUI management tools, with OpenVZ being the free and unsupported version. If you're familiar with Linux, think OpenVZ==CentOS and Virtuozzo==RHEL and you basically get the relationship between the two.

One thing I'm curious about: I'd been thinking about looking at SmartOS for some things myself. What do you mean when you say you need a remote OS for it ? As far as I understood things it's basically SunOS underneath, and boots off of a USB key and thereafter offers local utilities to download, install and manage images. External management systems like Chef, Puppet etc. are compatible with it, but are optional, as I understand things anyway.

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ocf_heartbeat_manageve

OCF_HEARTBEAT_MANAGE(7) 					OCF resource agents					   OCF_HEARTBEAT_MANAGE(7)

NAME

       ocf_heartbeat_ManageVE - Manages an OpenVZ Virtual Environment (VE)

SYNOPSIS

       ManageVE [start | stop | status | monitor | migrate_to | migrate_from | meta-data | validate-all]

DESCRIPTION

       This OCF compliant resource agent manages OpenVZ VEs and thus requires a proper OpenVZ installation including a recent vzctl util.

SUPPORTED PARAMETERS

       veid
	   OpenVZ ID of virtual environment (see output of vzlist -a for all assigned IDs) (required, integer, no default)

SUPPORTED ACTIONS

       This resource agent supports the following actions (operations):

       start
	   Starts the resource. Suggested minimum timeout: 75.

       stop
	   Stops the resource. Suggested minimum timeout: 75.

       status
	   Performs a status check. Suggested minimum timeout: 10. Suggested interval: 10.

       monitor
	   Performs a detailed status check. Suggested minimum timeout: 10. Suggested interval: 10.

       migrate_to
	   Executes steps necessary for migrating the resource to the node. Suggested minimum timeout: 75.

       migrate_from
	   Executes steps necessary for migrating the resource away from the node. Suggested minimum timeout: 75.

       validate-all
	   Performs a validation of the resource configuration. Suggested minimum timeout: 5.

       meta-data
	   Retrieves resource agent metadata (internal use only). Suggested minimum timeout: 5.

EXAMPLE

       The following is an example configuration for a ManageVE resource using the crm(8) shell:

	   primitive p_ManageVE ocf:heartbeat:ManageVE 
	     params 
	       veid=integer 
	     meta allow-migrate="true" 
	     op monitor depth="0" timeout="10" interval="10"

SEE ALSO

       http://www.linux-ha.org/wiki/ManageVE_(resource_agent)

AUTHOR

       Linux-HA contributors (see the resource agent source for information about individual authors)

resource-agents UNKNOWN 					    03/09/2014						   OCF_HEARTBEAT_MANAGE(7)