Fujitsu PRIMEQUEST 400 Series, Руководство по установке, Страница: 300 / 446

4-114 C122-E001-10EN
CHAPTER 4 Work Required After Operating System Installation
(2) Setting a dump mode
To use the partial dump function to reduce the dump area used, use a text editor such as
vi to add the following line to the diskdump module parameter (/etc/modporbe.conf):
where n indicates one of the following dump modes:
0: Dumps all memory.
19: Use the partial dump function.
Specify when using the partial dump function to reduce dump loads when the amount of
memory installed is large. If this is not specified, the system dumps the entire memory.
To use the compression function to reduce the dump area used, use a text editor such
as vi to add the following line to the diskdump module parameter (/etc/
modprobe.conf):
Use the file command in the manner shown below to confirm the compression of the
dump area.
• If the dump area is not compressed
As shown in the example below, a file is displayed in ELF format.
• If the dump area is compressed
If the dump file type has been reset while the diskdump service is active, the system
needs to be reactivated.
(3) Initializing the dump device
Perform the following operation to initialize the dump device. Check the
initialization result with the command return value. If the return value is 0, the
initialization is normally completed.
options diskdump dump_level=n
options diskdump compress=1
# file vmcore
vmcore: ELF 64-bit LSB core file IA-64, version 1 (SYSV), SVR4-
style, from ’vmlinux’
# file vmcore
vmcore: data
# service diskdump initialformat