Installing and Managing HP-UX Virtual Partitions (A.01.01)

Managing Virtual Partitions
Monitor Crash Dump
Chapter 3 39
NOTE
TOC and Kernel Dumps:
If a TOC (transfer of control) for the entire computer is generated either
through a Ctrl-B TC command or by an OS of a virtual partition, a
kernel dump will not automatically be saved to /var/adm/crash for
those partitions that have not previously had a kernel dump occur. You
can save their dumps to /var/adm/crash by performing the following on
each of those partitions:
Step 1. Obtain of list of dump devices, noting the DEVICE and OFFSET
information:
# crashconf -v
DEVICE OFFSET(kB) SIZE(kB) LOGICAL VOL. NAME
-------------- ---------- --------- ------------- --------------
31:0X022000 314208 4194304 64:0X000002 /dev/vg00/lvol2
The DEVICE is 31:0X022000, and the OFFSET is 314208.
Step 2. Map the minor number from the DEVICE information to a device file:
# ls -l /dev/dsk | grep "022000"
brw-r----- 1 bin sys 31 0x022000 Oct 13 2001 c2t2d0
The corresponding device file is /dev/dsk/c2t2d0.
Step 3. Using the OFFSET information and the device file, save the dump to
/var/adm/crash:
# savecrash -r -f -D /dev/dsk/c2t2d0 -O 314208