Question...

We have a system that normally logs to a message file, and a logging
collector process copies this information to tape.  However, during
bulk loads, we don't bother with copying the info out, it just needs
to go away.  The [third-party] system is doing this in the 'dummy'
collector by enabling extended wait, reading a record, issuing an
FCONTROL 6 (write EOF), and go back to start.

From looking at SOS, it appears to be writing to disk A WHOLE LOT and
not reading much of anything, e.g., 8 reads, 632 writes in 30 secs.
It appears there is A LOT of overhead in trashing out a message file
this way.  Would it be more efficient to just sit there and loop on
the FREAD?  I believe it is, but thought I'd ask before second-guessing
a fairly-well established application.

--
Jeff Kell <[log in to unmask]>