安装Oracle检测linux内核参数

Checking kernel parameters
Checking for semmsl=250; found semmsl=250.    Passed
Checking for semmns=32000; found semmns=32000.    Passed
Checking for semopm=100; found semopm=32.    Failed <<<<
Checking for semmni=128; found semmni=128.    Passed
Checking for shmmax=536870912; found shmmax=68719476736.    Passed
Checking for shmmni=4096; found shmmni=4096.    Passed
Checking for shmall=2097152; found shmall=4294967296.    Passed
Checking for file-max=65536; found file-max=88989.    Passed
Checking for VERSION=2.6.9; found VERSION=2.6.18-92.el5xen.    Passed
Checking for ip_local_port_range=1024 - 65000; found ip_local_port_range=32768 - 61000.    Failed <<<<
Checking for rmem_default=262144; found rmem_default=126976.    Failed <<<<
Checking for rmem_max=262144; found rmem_max=131071.    Failed <<<<
Checking for wmem_default=262144; found wmem_default=126976.    Failed <<<<
Checking for wmem_max=262144; found wmem_max=131071.    Failed <<<<
Check complete. The overall result of this check is: Failed <<<<
Problem: The kernel parameters do not meet the minimum requirements (see above).
Recommendation: Perform operating system specific instructions to update the kernel parameters.
修改 /etc/sysctl.conf 内核配置文件，增加/修改以下项目，如没有自己添加
 
kernel.shmall = 2097152 # 可以使用的共享内存的总量。
kernel.shmmax = 2147483648 # 最大共享内存段大小。
kernel.shmmni = 4096 # 整个系统共享内存段的最大数目。
kernel.sem = 250 32000 100 128 # 每个信号对象集的最大信号对象数；系统范围内最大信号对象数；每个信号对象支持的最大操作数；系统范围内最大信号对象集数。
fs.file-max = 65536 # 系统中所允许的文件句柄最大数目。
net.ipv4.ip_local_port_range = 1024 650