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The ungleich virtualisation handbook » History » Version 2

Nico Schottelius, 11/06/2018 12:02 PM

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h1. The ungleich virtualisation handbook
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h2. Introduction
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* A place is autonomous data center and does not share resources with another place.
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* The storage clusters are separated so that they don't influence each other
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* Networks are place local -> changing the place means changing the IP addresses
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h2. Migrating a VM from one place to another
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* Find the VM id (*onevm list* in opennebula)
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* Stop the VM (*onevm stop <vimid>*)
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* Locate the disk in ceph
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** Locate the correct ceph pool: *ceph osd lspools*
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** rbd list -p <CEPH POOL> | grep <VMID>
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** This gives you the *image name*
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* Login to the *destination place* and find out the target ceph pool
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** Locate the correct ceph pool: *ceph osd lspools* (this is the TARGET POOL)
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* Transfer the disk into the other place ceph cluster
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** rbd export <CEPH POOL>/<IMAGE NAME> - | ssh server-in-other-place "rbd import <TARGET POOL>/import-<VMID>"
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h2. See Also
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* For storage see [[The ungleich ceph handbook]]