This qualifier allows the user to specify how many blocks
  (decimal) that a user with a given UIC may use on given volume.
  this qualifier is not present or no value is specified, the
  field in the record is not modified.

  EXAMPLE:
   MODIFY [11,17] /PERMQUOTA=25000

  This will modify the quota record for UIC [11,17] to set the
  permanent quota to 25000 blocks.