Cisco Headend Digital Broadband Delivery System 사용자 가이드
749640 Rev D
Save Core Files With the savecore Utility
2-1
Chapter 2
Save Core Files With the savecore Utility
Overview
Introduction
The savecore utility enables system operators to save the contents of system memory
to a file for later analysis when the DNCS or the Application Server crashes.
Note: The contents of system memory at crash time is commonly referred to as a
Note: The contents of system memory at crash time is commonly referred to as a
core dump.
System operators run the savecore utility once on the DNCS and once on the
System operators run the savecore utility once on the DNCS and once on the
Application Server. The utility modifies system configuration files on the DNCS and
the Application Server so that the contents of a core dump are written automatically
to a file upon reboot. The system operator, Cisco engineers, or Sun Microsystems
engineers can later examine the file to determine why the system crashed.
Important: The savecore utility modifies the /etc/init.d/sysetup file when it
Important: The savecore utility modifies the /etc/init.d/sysetup file when it
executes for the first time. However, before modifying the file, the utility saves a
copy of the original file so that the original file can later be restored if the system
operator should decide to no longer automatically save the contents of a core dump.
What System Releases Benefit From the savecore Utility?
Systems running SR 1.5.x and earlier benefit from running the savecore utility. These
systems run on the Solaris version 2.5.1 Operating System (OS).
There is no need to run the savecore utility on sites that support SR 2.x or later
There is no need to run the savecore utility on sites that support SR 2.x or later
system software. These systems run on the Solaris version 8 OS. Functionality of the
savecore utility is enabled automatically by default in this OS.
Note: System operators may want to examine the online reference manual page
Note: System operators may want to examine the online reference manual page
(usually called the man page) for the UNIX dumpadm program. The dumpadm
program can be used to modify the configuration of the savecore functionality at
sites that support SR 2.x or later system software.
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