We have an application which uses the Posix file system on the 3000. The
application writes records to a basic fixed length file (with an HFS name)
as the user does stuff. One of our machines had a few system failures today
(generally a very rare event of course), and we found that all (or at least
most) of the Posix files had no records in them!

So, are these files covered by XM? Apparently not, though it is difficult to
find doc on the XM.

If we really want the data to be in the files, do we end up having to do a
fcontrol mode 2 to set complete IO? Or, this there a better way to make sure
we have the data in the files if the system happens to fail? I would think a
fcontrol mode 2 has a large performance hit, and we have around 150 users on
the machine in question, all using this app.

Thanks in advance

Steve