Oracle 11g使用dbca安装数据库时报错"SGA size can not be greater than、ORA-27102"
Oracle 11g使用dbca安装数据库时报错"SGA size can not be greater than maximum shared memory segment size、ORA-27102"
报错原因：Linux系统内核参数设置有误
解决方法：更改系统内核参数
[root@ZABBIXSERVER ~]# vim /etc/sysctl.conf
# Controls the maximum number of shared memory segments, in pages
kernel.shmall = 4294967296
#kernel.shmmax=2147483648
#kernel.shmmni=4096
#kernel.shmall=2097152
#kernel.sem=250 32000 100 128
#fs.file-max = 6553600
#net.ipv4.ip_local_port_range=1024 65000
#net.core.rmem_default = 262144
#net.core.rmem_max = 1048576
#net.core.wmem_default = 262144
#net.core.wmem_max = 1048576
fs.aio-max-nr = 1048576
fs.file-max = 6815744
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
net.ipv4.ip_local_port_range = 9000 65500
net.core.rmem_default = 4194304
net.core.rmem_max = 4194304
net.core.wmem_default = 262144
net.core.wmem_max = 1048576
报错原因：Linux系统内核参数设置有误
解决方法：更改系统内核参数
[root@ZABBIXSERVER ~]# vim /etc/sysctl.conf
# Controls the maximum number of shared memory segments, in pages
kernel.shmall = 4294967296
#kernel.shmmax=2147483648
#kernel.shmmni=4096
#kernel.shmall=2097152
#kernel.sem=250 32000 100 128
#fs.file-max = 6553600
#net.ipv4.ip_local_port_range=1024 65000
#net.core.rmem_default = 262144
#net.core.rmem_max = 1048576
#net.core.wmem_default = 262144
#net.core.wmem_max = 1048576
fs.aio-max-nr = 1048576
fs.file-max = 6815744
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
net.ipv4.ip_local_port_range = 9000 65500
net.core.rmem_default = 4194304
net.core.rmem_max = 4194304
net.core.wmem_default = 262144
net.core.wmem_max = 1048576
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