HP-UX Virtual Partitions Administrator's Guide (includes A.05.02)

Crash Processing and Recovery

Crash Processing

Chapter 10

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Step 1. (11i v2 and above) Beginning with HP-UX 11i v2 and therefore vPars A.04, the savecrash

processing has changed. Instead of copying the kernel ﬁle that was in use during the crash, the

directory /stand/crashconfig is copied. Therefore, prior to executing the crashconf and

savecrash steps below, create the /stand/crashconfig directory using

# kconfig -s crashconfig

Or if the kernel conﬁguration used in the last boot is different from the current kernel

conﬁguration, use the -c option. For example, if the saved kernel conﬁguration is named kc.custom,

the command is

# kconfig -c kc.custom crashconfig

For more information on using the kconfig command, see the manpages kconﬁg (5) and kconﬁg

(1M)

Step 2. 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 3. Map the device number from the DEVICE information to a device ﬁle:

# ls -l /dev/dsk /dev/disk | grep "31.*022000"

brw-r----- 1 bin sys 31 0x022000 Oct 13 2001 c2t2d0

The corresponding device ﬁle is /dev/dsk/c2t2d0.

Step 4. Using the OFFSET information and the device ﬁle, save the dump to /var/adm/crash:

# savecrash -r -f -D /dev/dsk/c2t2d0 -O 314208