Linux安装Oracle调整tmpfs以突破1.7G的限制

调整/dev/shm的大小

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1、查看大小
df -h /dev/shm

[@more@]2、修改大小(修改fstab文件以便重启生效)
vi /etc/fstab
tmpfs /dev/shm tmpfs defaults,size=4096M 0 0

3、重新挂载
mount -o remount,size=4096M /dev/shm

4、查看修改后的大小
df -h /dev/shm
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如果是Oracle Enterprise Linux 6.0及以上版本系统，还需要修改：/etc/rc.d/rc.sysinit

1、注释如下语句

#mount -f /dev/shm >/dev/null2>&1

2、在rc.sysinit 中找到如下内容

# Mount all other filesystems (except forNFS and /proc, which is already

# mounted). Contrary to standard usage,

# filesystems are NOT unmounted in singleuser mode.

if [ "$READONLY" !="yes" ] ; then

action $"Mounting local filesystems: " mount -a -t nonfs,nfs4,smbfs,ncpfs,cifs,gfs,gfs2 -O no_netdev

else

action $"Mounting local filesystems: " mount -a -n -t nonfs,nfs4,smbfs,ncpfs,cifs,gfs,gfs2 -O no_netdev

fi

=====> 在该处添加如下部分内容tmpfs

if [ "$READONLY" !="yes" ] ; then

action $"Mounting local filesystems: " mount -a -t tmpfs,nonfs,nfs4,smbfs,ncpfs,cifs,gfs,gfs2 -O no_netdev

else

action $"Mounting local filesystems: " mount -a -n -t tmpfs,nonfs,nfs4,smbfs,ncpfs,cifs,gfs,gfs2 -Ono_netdev

fi

3、重新启动系统

：转