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Re: VM disk affinity during live migration


There is an ongoing work to refactor live migration code, including use of 
scheduler to find/validate placement. At the moment the admin would need 
to make sure he/she is doing the right thing.


Alex Glikson
Manager, Cloud Operating System Technologies, IBM Haifa Research Lab
http://w3.haifa.ibm.com/dept/stt/cloud_sys.html | 
Email: glikson@xxxxxxxxxx | Phone: +972-4-8281085 | Mobile: 
+972-54-6466667 | Fax: +972-4-8296112

From:   "Chris Bartels" <chris@xxxxxxxxxxxxxxxxxxxxxx>
To:     <openstack@xxxxxxxxxxxxxxxxxxx>, 
Date:   31/05/2013 02:12 PM
Subject:        [Openstack] VM disk affinity during live migration
Sent by:        "Openstack" 

Please forgive me if I?ve asked already here on the list- I didn?t get a 
reply & I really need an answer, so I?m asking again in simpler terms this 
If I have a cluster of servers, each with spindle drives & SSDs, how can I 
be sure VM disks which reside on spindle drives migrate to spindle drives 
& those which reside on SSDs stay on SSDs as they migrate between servers?
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