AlphaStation 200 4/233, 64Mb, Ross' 1.3F snap.

I'm trying to use Amanda to backup my system (in a few weeks my then-new
roommate will have his boxes online, so no Amanda isn't overkill). I'm
getting performance on the order of 35KB/sec on my dumps.

Investigation shows that I'm only able to do backups at about 65KB/s from a
local disk to a networked null device. 

Any ideas on what's wrong?

--snip--

$ dump 0f localhost:/dev/null -B 100000000 /dev/rsd0h
  DUMP: Date of this level 0 dump: Wed Jul 29 01:16:29 1998
  DUMP: Date of last level 0 dump: the epoch
  DUMP: Dumping /dev/rsd0h (/export) to /dev/null on host localhost
  DUMP: mapping (Pass I) [regular files]
  DUMP: mapping (Pass II) [directories]
  DUMP: estimated 594307 tape blocks on 0.01 tape(s).
  DUMP: Volume 1 started at: Wed Jul 29 01:16:36 1998
  DUMP: dumping (Pass III) [directories]
  DUMP: dumping (Pass IV) [regular files]
  DUMP: 2.54% done, finished in 3:11
  DUMP: 5.09% done, finished in 3:06
(snip)
  DUMP: 96.27% done, finished in 0:05
  DUMP: 99.38% done, finished in 0:00
  DUMP: 597291 tape blocks on 1 volume
  DUMP: Volume 1 completed at: Wed Jul 29 03:48:37 1998
  DUMP: Volume 1 took 2:32:01
  DUMP: Volume 1 transfer rate: 65 KB/s
  DUMP: Date of this level 0 dump: Wed Jul 29 01:16:29 1998
  DUMP: Date this dump completed:  Wed Jul 29 03:48:37 1998
  DUMP: Average transfer rate: 65 KB/s
  DUMP: Closing /dev/null
  DUMP: DUMP IS DONE

--snip--
--
Kevin P. Neal                          http://www.pobox.com/~kpn/

'You know, I think I can hear the machine screaming from here... \
"help me! hellpp meeeee!"' - Heather Flanagan, 14:52:23 Wed Jun 10 1998