Subject: Re: Questions on NetBSD's LFS filesystem behavior.
To: Konrad Schroder <perseant@hhhh.org>
From: Brian Chase <bdc@WORLD.STD.COM>
List: tech-kern
Date: 01/24/2001 21:32:21
Okay, one more LFS question.  Are there any truly bad side-effects to
mounting an LFS filesytem with the `async' option?  The man page for
`mount' is very... frightening... in its discussion of using the async
option:

      async       All I/O to the file system should be done asyn-
                  chronously.  In the event of a crash, it is
                  impossible for the system to verify the integrity of
                  data on a file system mounted with this option.  You
                  should only use this option if you have an applica-
                  tion-specific data recovery mechanism, or are willing
                  to recreate the file system from scratch.

So, is this actually a concern with LFS?  I don't mind if I lose data. I
just don't want to lose a whole filesystem.  Secondly, based on the design
of LFS, are there actually any performance benefits to using the `async'
option in conjunction with it?

-brian.
--- Brian Chase | bdc@world.std.com | http://world.std.com/~bdc/ -----
              ALSO PLEASE DON'T POST IN ALL LOWERCASE
              IT MAKES IT LOOK LIKE YOU'RE WHISPERING! -- K.