root@grubbs-int:/ # pvs --version
  LVM version:     2.02.28 (2007-08-24)
  Library version: 1.02.22 (2007-08-21)
  Driver version:  4.12.0
root@grubbs-int:/ # pvs
  PV         VG    Fmt  Attr PSize   PFree  
  /dev/md2   vgext lvm2 a-     1.16T 272.35G
  /dev/sdj2  vg    lvm2 a-   465.51G 317.51G
root@grubbs-int:/ # pvdisplay 
  --- Physical volume ---
  PV Name               /dev/sdj2
  VG Name               vg
  PV Size               465.51 GB / not usable 2.52 MB
  Allocatable           yes 
  PE Size (KByte)       4096
  Total PE              119171
  Free PE               81283
  Allocated PE          37888
  PV UUID               oegMnQ-WgMi-BakB-9Gzc-OyIm-T1AT-Ad7PNo
   
  --- Physical volume ---
  PV Name               /dev/md2
  VG Name               vgext
  PV Size               4096.00 EB / not usable 4096.00 EB
  Allocatable           yes 
  PE Size (KByte)       4096
  Total PE              305242
  Free PE               69722
  Allocated PE          235520
  PV UUID               a3l3te-5S2d-FfpZ-h1EQ-Vvma-8kMM-isDRZa

Notice the 'PV Size' on vgext, claiming to be 4k exabytes.