IBM: Linux on System z操作系统需求：
2.2 网卡
根据oracle rac原理，安装rac需要两张网卡，并且网卡需要对应使用，IP地址为静态IP。
2.2.1 禁用自动命名网卡(rac01&rac02)
1.首先修改网卡的配置文件/etc/sysconfig/network-scripts/ifcfg-ens33文件，将ifcfg-ens33里的
DEVICE和NAME项改为eth0
2.然后将该配置的文件名改成ifcfg-eth0
3.禁用该可预测命名规则。对于这一点，你可以在启动时传递“net.ifnames=0 biosdevname=0 ”的内核
参数。这是通过编辑/etc/default/grub在变量GRUB_CMDLINE_LINUX后面加入“net.ifnames=0
biosdevname=0”来实现的，参数间以空格来间隔。
4.运行命令grub2-mkconfig -o /boot/grub2/grub.cfg 来重新生成GRUB配置并更新内核参数,重启。
- Oracle Linux 8.1 with the Unbreakable Enterprise Kernel 6: 5.4.17-
2011.0.7.el8uek.x86_64 or later
Oracle Linux 8 with the Red Hat Compatible kernel: 4.18.0-80.el8.x86_64 or
later
- Oracle Linux 7.4 with the Unbreakable Enterprise Kernel 4: 4.1.12-
124.19.2.el7uek.x86_64 or later
Oracle Linux 7.4 with the Unbreakable Enterprise Kernel 5: 4.14.35-
1818.1.6.el7uek.x86_64 or later
Oracle Linux 7.7 with the Unbreakable Enterprise Kernel 6: 5.4.17-
2011.4.4.el7uek.x86_64 or later
Oracle Linux 7.5 with the Red Hat Compatible Kernel: 3.10.0-
862.11.6.el7.x86_64 or later
- Red Hat Enterprise Linux 8: 4.18.0-80.el8.x86_64 or later
- Red Hat Enterprise Linux 7.5: 3.10.0-862.11.6.el7.x86_64 or later
- SUSE Linux Enterprise Server 15: 4.12.14-23-default or later
- SUSE Linux Enterprise Server 12 SP3: 4.4.162-94.72-default or later
- Red Hat Enterprise Linux 8.3: 4.18.0-240.el8.s390x or later
- Red Hat Enterprise Linux 7.4: 3.10.0-693.el7.s390x or later
- SUSE Linux Enterprise Server 15: 5.3.18-57-default s390x or later
- SUSE Linux Enterprise Server 12: 4.4.73-5-default s390x or later
[root@rac01 network-scripts]# cat /etc/default/grub
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="crashkernel=auto rd.lvm.lv=centos/root rd.lvm.lv=centos/swap
net.ifnames=0 biosdevname=0 rhgb quiet"
GRUB_DISABLE_RECOVERY="true"
#重新生成GRUB配置并更新内核参数
[root@rac01 ~]# grub2-mkconfig -o /boot/grub2/grub.cfg
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-4.14.35-1818.3.3.el7uek.x86_64
Found initrd image: /boot/initramfs-4.14.35-1818.3.3.el7uek.x86_64.img
