Thanks! Ok here it comes..
We don't actually have space anywhere else to put the servers/data even temporarily, which is a few TB.
~ # partedUtil get "/vmfs/devices/disks/mpx.vmhba32:C0:T0:L0" 488 255 63 7844864 1 64 8191 0 128 5 8224 520191 0 0 6 520224 1032191 0 0 7 1032224 1257471 0 0 8 1257504 1843199 0 0 9 1843200 7086079 0 0 ~ # partedUtil get "/vmfs/devices/disks/naa.600c0ff0001acfe54ac9855301000000" 1579209 255 63 25370004608 1 2048 11363266559 0 0 2 17563846656 19515387903 0 0 ~ # partedUtil get "/vmfs/devices/disks/naa.600c0ff0001ad075ebaece5201000000" 1093298 255 63 17563837440 1 2048 17563836415 0 0
~ # partedUtil getUsableSectors /vmfs/devices/disks/mpx.vmhba32:C0:T0:L0 34 7844830 ~ # partedUtil getUsableSectors /vmfs/devices/disks/naa.600c0ff0001acfe54ac9855301000000 34 25370004574 ~ # partedUtil getUsableSectors /vmfs/devices/disks/naa.600c0ff0001ad075ebaece5201000000 34 17563837406
naa.600c0ff0001ad075ebaece5201000000:1 /vmfs/devices/disks/naa.600c0ff0001ad075ebaece5201000000:1 53dce43b-85d926bd-05e3-2c44fd826264 0 Datastore1 naa.600c0ff0001acfe54ac9855301000000:2 /vmfs/devices/disks/naa.600c0ff0001acfe54ac9855301000000:2 53dce43b-85d926bd-05e3-2c44fd826264 1 Datastore1