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

[glen herrmannsfeldt]

Bill Gunshannon <billg999 at cs.uofs.edu> wrote:
(snip)
 
> Are you saying that the blocks used by a file that has been deleted are
> not going to be reused?  Assuming a decent file allocation scheme I would
> expect the freed blocks to be in locations that were likely to be considered
> prime real estate for the next file that needed space.

The MS_DOS allocation method seems to be such that the most
recently allocated blocks are the last to be reused, assuming
no reboot in the mean time.  As well as I understand it, there
is a pointer to the last allocated blocks that is incremented
until it gets to the end, and then starts over from the beginning.

-- glen