1 /CONTIGUOUS
/CONTIGUOUS /NOCONTIGUOUS Specifies that the created file is either to be contiguous (/CONTIGUOUS) or contiguous-best-try (/NOCONTIGUOUS). The Primitive File System used during OpenVMS bootstrap limits the page, swap, and dump files to one file header. Because of this restriction, OpenVMS cannot be reliably bootstrapped from a bound volume set and is not supported on a bound volume set.
2 /SIZE
/SIZE=block-count Specifies the size in blocks of the file to be created.