HP (Hewlett-Packard) 9000 V2600 SCA ユーザーズマニュアル

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Chapter 7
 
Recovering from failures
Abnormal system shutdowns
• The logical volume cannot be used for file system storage, because the 
whole logical volume is used.
To use logical volumes for dump devices (no matter how many logical 
volumes are required), include the following dump statement in the 
system file:
dump lvol
Configuring No Dump Devices—To configure a kernel with no dump 
device, use the following dump statement in the system file:
dump none
To configured the kernel for no dump device, the above statement (
dump 
none
) must be used.
NOTE
Omitting dump statements altogether from the 
system
 file results in a 
kernel that uses the primary paging device (swap device) as the dump 
device.
Step 2. Once the 
system
 file has been edited, build a new kernel file using the 
config
 command.
Step 3. Save the existing kernel file (probably 
/stand/vmunix
) to a safe place 
(such as 
/stand/vmunix.safe
) in case the new kernel file can not be 
booted.
Step 4. Boot the system from the new kernel file to activate the new dump device 
definitions.
Runtime dump device definitions
If there is not a concern about capturing a dump that occurs during the 
earliest stages of the boot process, replace or supplement any kernel 
dump device definitions while the system is booting or running. There 
are two ways to do this:
1. Using 
crashconf
 to read dump entries in the 
/etc/fstab
 file 
(using 
crashconf
’s 
-a
 option)
2. Using arguments to the 
crashconf 
command, directly specifying 
the devices to be configured