 |
|
When a Linux system should be used as a database server, some of the Linux
kernel parameters have to be changed. DB2 recommends to set
the kernel parameters to the following values for the versions v8.1 and v8.2:
|
Kernel parameter
|
Default value
|
Recommended value
|
Usage
|
|
----------------
|
----------------
|
------------------
|
-----------------------------
|
|
kernel.sem
|
250 32000 32 128
|
250 256000 32 1024
|
semaphore settings
|
|
kernel.msgmni
|
16
|
1024
|
max. queues system wide
|
|
kernel.msgmax
|
8192
|
65536
|
max. size of messages (bytes)
|
|
kernel.msgmnb
|
16384
|
65536
|
default size of queue (bytes)
|
|
|
|
|
|
