crashconf.1m (2010 09)

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crashconf(1M) crashconf(1M)

contents. Likewise, with -r, the -e

and -i options replace the current class list. This

option cannot be used with the

-d

option.

-s Mark the dump device list as persistent across reboots. This will also enable the

config_crashconf_mode

. Use -o to switch back to

config_deprecated_mode

The

-s and -o options are mutually exclusive.

-t When used with the -i,

-e, -c,or-p options, set the dump tunables alwaysdump ,

dontdump , dump_compress_on, and dump_concurrent_on respectively, to make the changes

persistent across system reboots. The conﬁguration ﬁle

/etc/rc.config.d/crashconf

also controls the dump conﬁguration. On rare occa-

sions, the system may crash before

crashconf

is run during the boot process. On those

occasions, the conﬁguration set using the dump tunables alwaysdump , dontdump ,

dump_compress_on, and dump_concurrent_on will be used. Once the machine boots up,

until the next invocation of

crashconf or change of the dump tunables, the dump will fol-

low the settings deﬁned in the

/etc/rc.config.d/crashconf

ﬁle.

-v Display the current crash dump conﬁguration as well as the list of persistent dump devices.

If any changes to the current conﬁguration are speciﬁed on the same command line as

-v,

the conﬁguration will be displayed after the requested changes are made.

RETURN VALUE

Upon exit,

crashconf returns the following values:

0 Success.

1 The requested conﬁguration changes could not be made.

WARNINGS

If the dump device conﬁgured goes ofﬂine, then that device will not be used for taking a crash dump.

crashconf output displays whether the dump device is currently ofﬂine.

On systems running VxVM 3.5, the swap volumes to be conﬁgured for system crash dumps should be

created with the usage type as

swap during the creation of the swap volume. Not doing so will cause

dump corruption. It is also possible to use the -U option of vxassist to create the swap volume

correctly.

When attributes of a VxVM dump logical volume change, it should be re-conﬁgured using the

crash-

conf command so that crash dump will use the updated values.

Marking dump devices using

lvlnboot, vxvmboot, and /stand/system

will be obsoleted in the

next HP-UX release. The

-s option of crashconf can be used to mark the dump device list as per-

sistent.

The output of

crashconf is not designed to be parsed by applications or scripts, but only to be read by

humans. The output format may change without notice. Applications which require crash dump

conﬁguration information should retrieve that information using pstat.

Dump devices created by

lvcreate must be contiguous (-Cy option) with bad block relocation turned

off (-rn option).

AUTHOR

crashconf was developed by HP.