Why duplicate disk got detected on xen Red Hat Enterprise Linux 5 guest?

Solution Unverified - Updated -

Issue

  • After migrating Red Hat Enterprise Linux 5 vm from vmware to oracle vm ( based on xen virtualization), disk is detected twice:
# fdisk -l

Disk /dev/hda: 85.8 GB, 85899345920 bytes
255 heads, 63 sectors/track, 10443 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/hda1   *           1          13      104391   83  Linux
/dev/hda2              14       10443    83778975   8e  Linux LVM

Disk /dev/xvda: 85.8 GB, 85899345920 bytes
255 heads, 63 sectors/track, 10443 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

    Device Boot      Start         End      Blocks   Id  System
/dev/xvda1   *           1          13      104391   83  Linux
/dev/xvda2              14       10443    83778975   8e  Linux LVM
  • pvscan is also showing same device twice:
# pvscan
  Found duplicate PV SEUovxL6Ud68dTVQ2zuSJh5p5GpANf0M: using /dev/xvda2 not /dev/hda2
  PV /dev/xvda2   VG vg00   lvm2 [79.88 GB / 22.88 GB free]
  Total: 1 [79.88 GB] / in use: 1 [79.88 GB] / in no VG: 0 [0   ]

Environment

  • Red Hat Enterprise Linux 5.11 Guest
  • Xen hypervisor

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