How to Check Whether Core File complete or truncated Post: 302071540

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Operating Systems AIX How to Check Whether Core File complete or truncated Post 302071540 by DogDay on Friday 21st of April 2006 11:54:41 AM

04-21-2006

Registered User

sysdumpdev -L

this will show you information on the previous dump.

-----
sysdumpdev [-P] [-p Device | -s Device]
sysdumpdev [-l | -q | -e | -z | -r Host:Path | -p Device | -s Device | -L]
sysdumpdev [-d | -D] Directory
sysdumpdev [-c | -C]
sysdumpdev [-k | -K]
sysdumpdev [-i | -I]

Change the primary and secondary dump device designations
in a running system.

-d Directory Specify the directory where the dump is copied to at
boot time. If the copy fails the system continues to boot.
-D Directory Specify the directory where the dump is copied to at
boot time. If the copy fails then a menu is displayed to
allow user to copy the dump.
-e Estimate the size of the dump (in bytes) for the
current running system.
-k Requires the key mode switch to be in the service
position before a dump can be forced with the reset
button or the dump key sequences.
-K The reset button or the dump key sequences will force
a dump with the key in the normal position, or on a
machine without a key mode switch.
-l List the current dump device designations.
-L Display statistical information about the previous dump.
-p Device Change the primary dump device to the specified
device temporarily.
-P Make the dump device specified by -p or -s flags permanent.
Can only be used with -p or -s flags.
-q Suppress any error messages that are written
to stdout.
-r Host:Path Free the space used by the remote dump file.
-s Device Change the secondary dump device to the specified
device temporarily.
-z Write out to stdout the string containing the size
of the dump in bytes and the name of the dump device
if a new dump is present.
-c Turns OFF compression for next dump.
-C Turns ON compression for next dump.
-i Indicates that sysdumpdev was called from an IBM function.
-I Resets the indications of -i option.

If no flag is specified, the permanent dump device designations are used.

DogDay

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LEARN ABOUT MINIX

savecore

savecore(1M)                                              System Administration Commands                                              savecore(1M)

NAME

       savecore - save a crash dump of the operating system

SYNOPSIS

       /usr/bin/savecore [-Lvd] [-f dumpfile] [directory]

DESCRIPTION

       The  savecore  utility saves a crash dump of the kernel (assuming that one was made) and writes a reboot message in the shutdown log. It is
       invoked by the dumpadm service each time the system boots.

       savecore saves the crash dump data in the file directory/vmcore.n and the kernel's namelist in directory/unix.n. The  trailing  .n  in  the
       pathnames is replaced by a number which grows every time savecore is run in that directory.

       Before writing out a crash dump, savecore reads a number from the file directory/minfree. This is the minimum number of kilobytes that must
       remain free on the file system containing directory. If after saving the crash dump the file system containing directory  would  have  less
       free  space the number of kilobytes specified in minfree, the crash dump is not saved. if the minfree file does not exist, savecore assumes
       a minfree value of 1 megabyte.

       The savecore utility also logs a reboot message using facility LOG_AUTH (see syslog(3C)). If the system crashed as a  result  of  a  panic,
       savecore logs the panic string too.

OPTIONS

       The following options are supported:

       -d              Disregard  dump  header valid flag. Force savecore to attempt to save a crash dump even if the header information stored on
                       the dump device indicates the dump has already been saved.

       -f dumpfile     Attempt to save a crash dump from the specified file instead of from the system's current dump device. This option  may  be
                       useful if the information stored on the dump device has been copied to an on-disk file by means of the dd(1M) command.

       -L              Save  a  crash  dump of the live running Solaris system, without actually rebooting or altering the system in any way. This
                       option forces savecore to save a live snapshot of the system to the dump device, and then immediately to retrieve the  data
                       and  to  write it out to a new set of crash dump files in the specified directory. Live system crash dumps can only be per-
                       formed if you have configured your system to have a dedicated dump device using dumpadm(1M).

                       savecore -L does not suspend the system, so the contents of memory continue to change while the dump is saved.  This  means
                       that live crash dumps are not fully self-consistent.

       -v              Verbose. Enables verbose error messages from savecore.

OPERANDS

       The following operands are supported:

       directory               Save  the crash dump files to the specified directory. If directory is not specified, savecore saves the crash dump
                               files to the default savecore directory, configured by dumpadm(1M).

FILES

       directory/vmcore.n

       directory/unix.n

       directory/bounds

       directory/minfree

       /var/crash/'uname -n'           default crash dump directory

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Availability                 |SUNWcsu                      |
       +-----------------------------+-----------------------------+

SEE ALSO

       adb(1), mdb(1), svcs(1), dd(1M), dumpadm(1M), svcadm(1M), syslog(3C), attributes(5), smf(5)

NOTES

       The system crash dump service is managed by the service management facility, smf(5), under the service identifier:

       svc:/system/dumpadm:default

       Administrative actions on this service, such as enabling, disabling, or requesting restart, can be performed  using  svcadm(1M).  The  ser-
       vice's status can be queried using the svcs(1) command.

       If the dump device is also being used as a swap device, you must run savecore very soon after booting, before the swap space containing the
       crash dump is overwritten by programs currently running.

SunOS 5.10                                                          25 Sep 2004                                                       savecore(1M)