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c00b2f0dd1
There are two ways to use a iSCSI LUN as disk source for qemu. * The LUN's path as it shows up on host, e.g. /dev/disk/by-path/ip-$ip:3260-iscsi-$iqn-fc18:iscsi.iscsi0-lun-1 * The libiscsi URI from the storage pool source element host attribute, e.g. iscsi://demo.org:6000/iqn.1992-01.com.example/1 For a "volume" type disk, if the specified "pool" is of iscsi type, we should support to use the LUN in either of above 2 ways. That's why to introduce a new XML tag "mode" for the disk source (libvirt should support iscsi pool with libiscsi, but it's another new feature, which should be done later). The "mode" can be either of "host" or "direct". Use "host" to indicate use of the LUN with the path as it shows up on host. Use "direct" to indicate to use it with the source pool host URI (future patches may support to use network type libvirt storage too, e.g. Ceph)
49 lines
1.7 KiB
XML
49 lines
1.7 KiB
XML
<domain type='qemu'>
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<name>QEMUGuest1</name>
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<uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
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<memory unit='KiB'>219136</memory>
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<currentMemory unit='KiB'>219136</currentMemory>
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<vcpu placement='static'>1</vcpu>
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<os>
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<type arch='i686' machine='pc'>hvm</type>
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<boot dev='hd'/>
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</os>
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<clock offset='utc'/>
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<on_poweroff>destroy</on_poweroff>
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<on_reboot>restart</on_reboot>
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<on_crash>destroy</on_crash>
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<devices>
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<emulator>/usr/bin/qemu</emulator>
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<disk type='volume' device='cdrom'>
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<source pool='blk-pool0' volume='blk-pool0-vol0' mode='host' startupPolicy='optional'>
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<seclabel model='selinux' relabel='yes'>
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<label>system_u:system_r:public_content_t:s0</label>
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</seclabel>
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</source>
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<target dev='hda' bus='ide'/>
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<readonly/>
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<address type='drive' controller='0' bus='0' target='0' unit='1'/>
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</disk>
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<disk type='volume' device='cdrom'>
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<source pool='blk-pool0' volume='blk-pool0-vol1' mode='direct' startupPolicy='optional'>
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<seclabel model='selinux' relabel='yes'>
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<label>system_u:system_r:public_content_t:s0</label>
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</seclabel>
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</source>
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<target dev='hda' bus='ide'/>
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<readonly/>
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<address type='drive' controller='0' bus='0' target='0' unit='2'/>
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</disk>
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<disk type='file' device='disk'>
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<source file='/tmp/idedisk.img'/>
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<target dev='hdc' bus='ide'/>
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<address type='drive' controller='0' bus='0' target='0' unit='3'/>
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</disk>
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<controller type='usb' index='0'/>
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<controller type='ide' index='0'/>
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<controller type='ide' index='1'/>
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<controller type='pci' index='0' model='pci-root'/>
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<memballoon model='virtio'/>
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</devices>
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</domain>
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