In addition to configuring the target system to accept migrations, you must also configure the domain that will be migrated so that the domain's storage is accessible from both the source and the target systems. The domain's accessible disks must reside on some form of shared storage, such as NFS files or iSCSI volumes. This document uses the NFS method available in the OpenSolaris 2009.06 release.
On the NFS server, share the directory:
# sharectl set -p nfsmapid_domain=sun.com nfs # svcadm restart svc:/network/nfs/mapid:default # share -F nfs -o "sec=sys,root=host1:host2,rw" /vdisks |
On both the host1 source system and the host2target system, also execute the sharectl to set the NFS mapid name to sun.com, and the svcadm command restart the xend service.
# virt-install -p --nographics -n domain -r 1024 -l /isos/os0906/os0906.iso -f /net/hostname_of_nfs_server/vdisks/testpv |
The virt-install command then creates the virtual disk on the NFS server and starts the guest installation process.
This method should be available in a build after the OpenSolaris 2009.06 release.
An iscsi-backed guest would be created with this base command:
# virt-install -n <name> -r <ram> -p --nographics -l /path/to/iso \ -m <mac address> \ --disk path=/static/<iscsi target ip address>/<lun>/<iqnnumber>,driver=phy,subdriver=iscsi |
An example would be:
# virt-install -n ubuntu -r 1024 -p --nographics -l /net/xvm-4200m2-03/isos/ubuntu-7.04-32.iso \ --disk path=/static/172.20.26.10/0/iqn.1986-03.com.sun:02:52ac879e-788e-e0ea-bf5c-f86b2b63258a,driver=phy,subdriver=iscsi |
In addition to setting up the xend relocation host allow field as described above in the section "Enabling Live Migration on a Target Host,” also issue the following command to enable static discovery on both dom0s:
# iscsiadm modify discovery -s enable |