hi!

i've got some questions about devctrl.mpexl.telesup and
hardware compression.  we had a problem with it this weekend
and i'm wondering if we're using correctly.  i had always
thought that devctrl could/should be run once (like at
system startup time) and <whatever> would stay set until
reset or the system was rebooted.  is that right?  or does
it <eek> need to be re-run prior to every use?  and what if
a tape is mounted when using devctrl?  has anyone seen
anything like this?

devctrl.mpexl.telesup 80 compression=enable
Device = 80, Compression=enable, Eject=Nochange,
Load=Nochange

Unable to establish device ownership
Subsys:          231
Error :          -36

having no showdev to go with this <sigh>  my suspicion is:
 1) a tape was actually mounted or
 2) a tape was mounted, the system was rebooted and now the
drive is in some 'quasi' (sort of mounted, sort of not)
state

(the above caused a *real* mess....  ldev 80 is one of our
dlt8000s.  after 30+ hours, the operators finally aborted
the job using this device.  it was backing up ~55gb and
still wasn't done <sigh>)

finally, does the tape label have any effect on whether or
not the device will use compression?  that is, say a 90m (w/
media recognition) tape was labelled on a dds2 drive (no
compression)....  if that tape is mounted in a dds3 drive
with h/w compression enabled -- what's the
result?                - d 'really wanting a better
devctrl!'

--
Donna Garverick     Sr. System Programmer
925-210-6631        [log in to unmask]

"Unix _is_ user friendly.
It's just very selective about who its friends are.
And sometimes even best friends have fights."

>>>MY opinions, not Longs Drug Stores'<<<