[Info-vax] Request description of UFS for VMS person

[Arne Vajhøj]

Bob Koehler wrote:
> In article <33c33267-2172-433d-9a98-fdd1b9cbda3b at y7g2000yqa.googlegroups.com>, AEF <spamsink2001 at yahoo.com> writes:
>> Then there's the mysterious VMS deletion process which I'd love to
>> learn. I only know about it from the strange ANAL/DISK errors about
>> file headers being busy, deleted, quasi-deleted, or whatever. I'd love
>> to learn about that too.
> 
>    This is an area in which every file system I've studied operates the
>    same.  There is no file delete primitive at the lowest levels of
>    the VMS or UNIX kernel, and I think not Windows, MS-DOS, or classis
>    MacOS, either.
> 
>    To delete a file the atomic operations are:  open the file, set the
>    delete-on-close flag, and close the file.

IO$_DELETE!IO$M_DELETE is reasonable low level in my book.

Arne