Read Before Installing or Updating to HP-UX 11i Version 2, March 2004

13
Enabling HP-UX Compressed Dump
HP-UX 11i v2 (B.11.23) supports compressed dumps, which
significantly speed up memory dump time for HP-UX in the
event of a system crash. The initial HP-UX 11i 2 release supports
uncompressed dumps by default.
To enable (turn on) the compressed dump feature:
Select the compressed dump option within 10 seconds of a
system crash.
Turn crashdump compression ON using crashconf(1M).
To turn compressed dumps ON/OFF, run the following command:
# crashconf -c [ON | OFF]
Note Compressed dumps will revert to the default
behavior (OFF) when the kernel reboots. In some
isolated cases, compressed dump may hang. If this
happens, turn compressed dump off.