Re: [libvirt-users] migrate local storage to ceph | exchanging the storage system

-----Oorspronkelijk bericht----- Van: libvirt-users-bounces(a)redhat.com [mailto:libvirt-users- bounces(a)redhat.com] Namens Björn Lässig Verzonden: vrijdag 27 mei 2016 10:10 Aan: libvirt-users(a)redhat.com Onderwerp: [libvirt-users] migrate local storage to ceph | exchanging the storage system TLDR: Why is virsh migrate --persistent --live domain qemu+ssh://root@host/system --xml domain.ceph.xml not persistent and what could i do about it? Hi, after years of beeing pleased with local storage and migrating the complete storage from one host to another, it was time for ceph. After setting up a cluster and testing it, its time now for moving a lot of VMs on that type of storage, without a disturbance if possible. So I 'virsh dumpxml domain > domain.ceph.xml', edit the file, replace // ---- old ---- // <disk type='file' device='disk'> <driver name='qemu' type='qcow2' cache='none'/> <source file='domain.img'/> <backingStore/> <target dev='vda' bus='virtio'/> <alias name='virtio-disk0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> </disk> // ---- with new ---- // <disk type='network' device='disk'> <driver name='qemu' type='raw'/> <auth username='libvirt'> <secret type='ceph' uuid='53e4ba03-5ad0-4f1e-b69e-897afba272ff'/> </auth> <source protocol='rbd' name='libvirt/domain'> <host name='cephmon0' port='6789'/> <host name='cephmon1' port='6789'/> <host name='cephmon2' port='6789'/> </source> <backingStore/> <target dev='vda' bus='virtio'/> <boot order='1'/> <alias name='virtio-disk0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> </disk> Now i'm calling: root@host_a:~# virsh migrate --verbose --p2p --copy-storage-all --persistent -- change-protection --abort-on-error --undefinesource --live domain qemu+ssh://root@host_b/system --xml domain.ceph.xml

This takes its time to copy everything into ceph, but when its over, i never have to migrate Terabytes of Storage again. But its not over. The new domain definition on host_b is not persistent and after a shutdown, local storage is used again. What do i have todo, to make this change persistent, or is there a better way for doing this? (i am using libvirt 1.2.9) Thanks in advance Björn Lässig -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ libvirt-users mailing list libvirt-users(a)redhat.com https://www.redhat.com/mailman/listinfo/libvirt-users