On Mon, Oct 25, 2010 at 2:18 PM, Gordon Messmer <span dir="ltr"><<a href="mailto:yinyang@eburg.com">yinyang@eburg.com</a>></span> wrote:<br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div class="im"><br>
</div>Which block devices are you exporting to your guest? Post the libvirt<br>
configuration file for it.</blockquote><div><br></div><div>See below. It's specifically the second volume group that collides between virtual and physical systems. Both dom0 and U have identical VolGroup00 VGs, but these do not collide.</div>
<div><br></div><div>Renaming the VG used by the domU within the domU removes the collision, but the newly-renamed VG still shows up in dom0 as a useable VG with space to be allocated. </div><div><br></div><div>Here is the pvdisplay output from dom0. Interestingly, it shows /dev/VolGroup01/lv-sys1-data as "physical volume" when it's obviously just an LV in the original VolGroup01 VG. And this only happens with the _second_ Volume Group created. VolGroup00 is not an issue on this or any other systems I've used:</div>
<div><br></div><div><div>[root@iain2 qemu]# pvdisplay</div><div> --- Physical volume ---</div><div> PV Name /dev/VolGroup01/lv-sys1-data</div><div> VG Name vg-sys1</div><div> PV Size 40.00 GB / not usable 4.00 MB</div>
<div> Allocatable yes (but full)</div><div> PE Size (KByte) 4096</div><div> Total PE 10239</div><div> Free PE 0</div><div> Allocated PE 10239</div><div> PV UUID FTA4QU-ydZ7-e2Yy-nBsi-t4st-3jj7-IAkQH8</div>
<div> </div><div> --- Physical volume ---</div><div> PV Name /dev/sda3</div><div> VG Name VolGroup00</div><div> PV Size 39.06 GB / not usable 29.77 MB</div><div> Allocatable yes (but full)</div>
<div> PE Size (KByte) 32768</div><div> Total PE 1249</div><div> Free PE 0</div><div> Allocated PE 1249</div><div> PV UUID tTViks-3lBM-HGzV-mnN9-zRsT-fFT0-ZsJRse</div>
<div> </div><div> --- Physical volume ---</div><div> PV Name /dev/sda2</div><div> VG Name VolGroup01</div><div> PV Size 240.31 GB / not usable 25.75 MB</div><div> Allocatable yes </div>
<div> PE Size (KByte) 32768</div><div> Total PE 7689</div><div> Free PE 5129</div><div> Allocated PE 2560</div><div> PV UUID ZE5Io3-WYIO-EfOQ-h03q-zGdF-Frpa-tm63fX</div>
</div><div><br></div><div><br></div><div><br></div><div><div>[root@iain2 qemu]# cat sys1.xml </div><div><domain type='kvm'></div><div> <name>sys1</name></div><div> <uuid>37f34394-d380-d2c4-ac37-3263c16028ff</uuid></div>
<div> <memory>524288</memory></div><div> <currentMemory>524288</currentMemory></div><div> <vcpu>1</vcpu></div><div> <os></div><div> <type arch='x86_64' machine='rhel5.4.0'>hvm</type></div>
<div> <boot dev='hd'/></div><div> </os></div><div> <features></div><div> <acpi/></div><div> <apic/></div><div> <pae/></div><div> </features></div><div> <clock offset='utc'/></div>
<div> <on_poweroff>destroy</on_poweroff></div><div> <on_reboot>restart</on_reboot></div><div> <on_crash>restart</on_crash></div><div> <devices></div><div> <emulator>/usr/libexec/qemu-kvm</emulator></div>
<div> <disk type='block' device='disk'></div><div> <driver name='qemu' cache='none'/></div><div> <source dev='/dev/VolGroup01/lv-sys1'/></div><div> <target dev='vda' bus='virtio'/></div>
<div> </disk></div><div> <disk type='block' device='cdrom'></div><div> <target dev='hdc' bus='ide'/></div><div> <readonly/></div><div> </disk></div>
<div> <disk type='block' device='disk'></div><div> <source dev='/dev/VolGroup01/lv-sys1-data'/></div><div> <target dev='vdb' bus='virtio'/></div><div>
</disk></div><div> <interface type='network'></div><div> <mac address='54:52:00:3b:4a:f5'/></div><div> <source network='default'/></div><div> <model type='virtio'/></div>
<div> </interface></div><div> <serial type='pty'></div><div> <source path='/dev/pts/3'/></div><div> <target port='0'/></div><div> </serial></div><div>
<console type='pty' tty='/dev/pts/3'></div><div> <source path='/dev/pts/3'/></div><div> <target port='0'/></div><div> </console></div><div> <input type='mouse' bus='ps2'/></div>
<div> <graphics type='vnc' port='-1' autoport='yes' keymap='en-us'/></div><div> </devices></div><div></domain></div></div><div><br></div><div><br></div><div> </div></div>
-- <br>-- -<br>Iain Morris<br><a href="mailto:iain.t.morris@gmail.com">iain.t.morris@gmail.com</a><br>