On Fri, Feb 11, 2000 at 08:54:52PM +0100, Andre Oppermann wrote:
> > FFS with sync metadata (the default) does. I'm not
> > sure on FFS/softupdates.
>
> It does also for softupdates. The only case FFS does not guarantee this
> is when you mount FFS async.
This is what I read in the qmail FAQ:
"What types of filesystems are safe for mail?
Answer: qmail's queue (except for bounce message contents) is crashproof
if the filesystem guarantees that single-byte writes are
atomic and that directory operations are synchronous. These guarantees
are provided by the BSD FFS and its derivatives, and by
typical journaling filesystems.
Do not use async (or softupdates) filesystems; if you do, and if your
system crashes at the wrong moment, you will lose mail. Under
Linux, make sure that all mail-handling filesystems are mounted sync.
The same comments apply to sendmail and other mailers.
It is safe to put qmail's queue on a noatime filesystem."
Dan does not recommend the use of a softupdates file system for
the queue. If FFS+softupdates = standard FFS+faster, then there
should be no harm in using it. Dan, any comments?
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