Library /sys$common/syshlp/sysgen.hlb CREATE, Example  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  SYSGEN>  CREATE DISK$PAGE:[NODE1]PAGEFILE.SYS /SIZE=200000

      This command creates a file called PAGEFILE.SYS on the disk
      DISK$PAGE: in directory [NODE1]. This file is created as a
      contiguous-best-try file, which is the default. SYSGEN creates
      the file with 200,000 blocks, or allocates as many blocks on
      the disk as it can and displays a message warning that the file
      does not have the full allocation specified with the CREATE
      command.

      The file will not be used for paging or swapping until you use
      the SYSGEN command INSTALL specifying the file and how it is to
      be used.