Hi All,
I'm facing the problem that after adding disks to guest VM, the device
target path changed (My ovirt version is 4.3). For example:
Before adding a disk:
virsh # domblklist <vmname>
Target Source
---------------------------------------------------------
hdc -
vda /dev/mapper/3600a09803830386546244a546d494f53
vdb /dev/mapper/3600a09803830386546244a546d494f54
* vdc /dev/mapper/3600a09803830386546244a546d494f55*
vdd /dev/mapper/3600a09803830386546244a546d494f56
vde /dev/mapper/3600a09803830386546244a546d494f57
vdf /dev/mapper/3600a09803830386546244a546d494f58
After adding a disk, and then shutdown and start the VM:
virsh # domblklist <vmname>
Target Source
---------------------------------------------------------
hdc -
vda /dev/mapper/3600a09803830386546244a546d494f53
vdb /dev/mapper/3600a09803830386546244a546d494f54
*vdc /dev/mapper/3600a09803830386546244a546d494f6c*
* vdd /dev/mapper/3600a09803830386546244a546d494f55*
vde /dev/mapper/3600a09803830386546244a546d494f56
vdf /dev/mapper/3600a09803830386546244a546d494f57
vdg /dev/mapper/3600a09803830386546244a546d494f58
The devices' multipath doesn't map to the same target path as before, so in
my VM the /dev/vdc doesn't point to the old
/dev/mapper/3600a09803830386546244a546d494f55 anymore.
Anybody knows how can I make the device path mapping fixed without being
changed after adding or removing disks.
Many thanks in advance.
Joy