[one-users] VM reschedule and Host flush features through Live Migration

[Shek Mohd Fahmi Abdul Latip]

Hi Ruben,

It works now. Sorry I didn't noticed that this feature has been posted on the document earlier.

Thanks for the highlight.

Best regards,
.fahmie

From: Ruben S. Montero [mailto:rsmontero at opennebula.org]
Sent: Friday, September 13, 2013 5:00 PM
To: Shek Mohd Fahmi Abdul Latip
Cc: users at lists.opennebula.org<mailto:users at lists.opennebula.org>; Hadi Noira Omar; Shahrin Mohamad Fuzi; Sharuzzaman Ahmat Raslan
Subject: Re: [one-users] VM reschedule and Host flush features through Live Migration

Hi

Both operations uses the scheduler, the migration action of the scheduler can be configured in sched.conf, change

LIVE_RESCHEDS  = 0

to 1. Then re-schedule and flush  will use live migrations.

As a side note, We are also adding more "DRS" like features with the storage scheduler. You will be able to define policies on what datastore will be used to deploy a given VM.

Cheers

Ruben



On Fri, Sep 13, 2013 at 5:53 AM, Shek Mohd Fahmi Abdul Latip <fahmi.latip at mimos.my<mailto:fahmi.latip at mimos.my>> wrote:
Hi all,

I performed few tests on VM reschedule and Host flush features, as a result it gave me some doubt on top of my head.

The behavior of "onevm resched" and "onehost flush"  execution is using "cold migration" instead of using "Live Migration". Is there any reason why it cannot be done through Live Migration? Can this feature be enabled on the next release perhaps as an option e.g. "onevm resched <vmid> --live" and "onehost flush <hostid> --live"?

p.s: "onevm resched" feature I keep comparing with VMware features called "DRS" and "onehost flush" feature with "host maintenance" as both done via "VMotion" in VMware.

Best regards,
.fahmie




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Ruben S. Montero, PhD
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OpenNebula - The Open Source Solution for Data Center Virtualization
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