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.