CentOS6多路径配置.docx

配置环境：存储厂家：Infortrend 主机系统：CentOS6.0目 录1、关闭防火墙步12、彻底关闭SELinux23、开机网卡启动, 设置固定IP34、开启SSh45、device-mapper-multipath安装与配置45.1挂载光驱45.2多路径安装：45.3检查安装情况55.5创建多路径文件55.6将多路径软件multipath设置为开机启动65.7修改多路径配置文件：65.8格式化mpathap1和mpathap285.9挂在分区：86、DD测试91、关闭防火墙步关闭命令： service iptables stop 永久关闭防火墙：chkconfig iptables off 两个命令同时运行，运行完成后查看防火墙关闭状态 ：service iptables statusrootlocalhost # service iptables stopiptables：清除防火墙规则：确定iptables：将链设置为政策 ACCEPT：filter 确定iptables：正在卸载模块：确定rootlocalhost # chkconfig iptables offrootlocalhost # service iptables statusiptables：未运行防火墙。rootlocalhost #2、彻底关闭SELinux rootlocalhost etc# vi /etc/selinux/config # This file controls the state of SELinux on the system.# SELINUX= can take one of these three values:# enforcing - SELinux security policy is enforced.# permissive - SELinux prints warnings instead of enforcing.# disabled - No SELinux policy is loaded.#SELINUX=enforcing-前面加个#号注释掉它# SELINUXTYPE= can take one of these two values:# targeted - Targeted processes are protected,# mls - Multi Level Security protection.SELINUXTYPE=disabled-修改为disabledselinux/config 13L, 458C writtenrootlocalhost etc#保存，退出，重启系统，搞定。3、开机网卡启动, 设置固定IProotlocalhost # vi /etc/sysconfig/network-scripts/ifcfg-eth0DEVICE=eth0HWADDR=00:25:90:DA:9C:2FNM_CONTROLLED=yesONBOOT=yes-修改如下内容为yes就可以开机自动启动了.IPADDR=192.168.1.237 PREFIX=24GETWAY=192.168.1.1DNS1=192.168.1.1DNS2=8.8.8.8/etc/sysconfig/network-scripts/ifcfg-eth0 9L, 154C written#设置临时IP rootlocalhost # ifconfig eth0 192.168.1.237 broadcast 192.168.1.1 netmask 255.255.255.0rootlocalhost # ifconfigeth0 Link encap:Ethernet HWaddr 00:25:90:DA:9C:2F inet addr:192.168.1.237 Bcast:192.168.1.1 Mask:255.255.255.0 inet6 addr: fe80:225:90ff:feda:9c2f/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:14762 errors:0 dropped:0 overruns:0 frame:0 TX packets:1564 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:4076998 (3.8 MiB) TX bytes:166320 (162.4 KiB) Memory:dfb00000-dfb20000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: :1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:48 errors:0 dropped:0 overruns:0 frame:0 TX packets:48 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:3968 (3.8 KiB) TX bytes:3968 (3.8 KiB)4、开启SSh打开终端命令。输入 rpm -qa |grep ssh 查找当前系统是否已经安装安装好了之后，就开启ssh服务。Ssh服务一般叫做 SSHD命令行输入 service sshd start 可以启动5、device-mapper-multipath安装与配置5.1挂载光驱：mount /dev/cdrom /media5.2多路径安装：rootlocalhost CentOS_6.0_Final# lsdevice-mapper-1.02.53-8.el6.x86_64.rpmdevice-mapper-event-1.02.53-8.el6.x86_64.rpmdevice-mapper-event-libs-1.02.53-8.el6.x86_64.rpmdevice-mapper-libs-1.02.53-8.el6.x86_64.rpmdevice-mapper-multipath-0.4.9-31.el6.x86_64.rpmdevice-mapper-multipath-libs-0.4.9-31.el6.x86_64.rpmkpartx-0.4.9-31.el6.x86_64.rpmrootlocalhost CentOS_6.0_Final# rpm -ivh kpartx-0.4.9-31.el6.x86_64.rpm warning: kpartx-0.4.9-31.el6.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID c105b9de: NOKEYPreparing. (# 100% package kpartx-0.4.9-31.el6.x86_64 is already installedrootlocalhost CentOS_6.0_Final# rpm -ivh device-mapper-1.02.53-8.el6.x86_64.rpm warning: device-mapper-1.02.53-8.el6.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID c105b9de: NOKEYPreparing. (# 100% package device-mapper-1.02.53-8.el6.x86_64 is already installedrootlocalhost CentOS_6.0_Final# rpm -ivh device-mapper-libs-1.02.53-8.el6.x86_64.rpm warning: device-mapper-libs-1.02.53-8.el6.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID c105b9de: NOKEYPreparing. (# 100% package device-mapper-libs-1.02.53-8.el6.x86_64 is already installedrootlocalhost CentOS_6.0_Final# rpm -ivh device-mapper-multipath-0.4.9-31.el6.x86_64.rpm warning: device-mapper-multipath-0.4.9-31.el6.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID c105b9de: NOKEYPreparing. (# 100% package device-mapper-multipath-0.4.9-31.el6.x86_64 is already installedrootlocalhost CentOS_6.0_Final# rpm -ivh device-mapper-multipath-libs-0.4.9-31.el6.x86_64.rpm warning: device-mapper-multipath-libs-0.4.9-31.el6.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID c105b9de: NOKEYPreparing. (# 100% package device-mapper-multipath-libs-0.4.9-31.el6.x86_64 is already installedrootlocalhost CentOS_6.0_Final#5.3检查安装情况：rpm -qa|grep multipath5.3.1输出结果为: rootlocalhost CentOS_6.0_Final# rpm -qa|grep multipath device-mapper-multipath-0.4.9-31.el6.x86_64 device-mapper-multipath-libs-0.4.9-31.el6.x86_64 rootlocalhost CentOS_6.0_Final#5.5创建多路径文件/etc/multipath.conf#mpathconf -enable -find_multipaths y -with_multipathd y -with_chkconfig y5.5.1重启多路径服务5.5.2将多路径软件添加到内核模块中：rootlocalhost etc# modprobe dm-multipathrootlocalhost etc# modprobe dm-round-robin5.5.3检查内核添加情况：rootlocalhost etc# lsmod |grep multipath5.6将多路径软件multipath设置为开机启动rootlocalhost etc# chkconfig multipathd on检查rootlocalhost etc# chkconfig -list|grep multipathd启动multipath服务：rootlocalhost etc# service multipathd restart5.7修改多路径配置文件：rootlocalhost /# vi /etc/multipath.conf# Use user friendly names, instead of using WWIDs as names.defaults find_multipaths yes user_friendly_names yes# Here is an example of how to configure some standard options.#defaults udev_dir /dev polling_interval 10# selector round-robin 0 path_grouping_policy multibus getuid_callout /lib/udev/scsi_id -whitelisted -device=/dev/%n# prio alua path_checker readsector0 rr_min_io 100 max_fds 8192 rr_weight priorities failback immediate no_path_retry fail# user_friendly_names yes保存退出5.7.1查看、检查多路径rootlocalhost # multipath -l|morempathb (3600d02310003498c3030bca94afb6000) dm-4 UDsafe,ESS630TU-R16Esize=200G features=0 hwhandler=0 wp=rw-+- policy=round-robin 0 prio=-1 status=active |- 0:0:0:1 sdc 8:32 active undef running - 1:0:0:1 sde 8:64 active undef runningmpatha (3600d02310003498c4517d01d79f01d5e) dm-3 UDsafe,ESS630TU-R16Esize=100G features=0 hwhandler=0 wp=rw-+- policy=round-robin 0 prio=-1 status=active |- 0:0:0:0 sdb 8:16 active undef running - 1:0:0:0 sdd 8:48 active undef running5.7.2启用multipath配置后，会在/dev/mappper下生成多路径逻辑盘rootlocalhost /# cd /dev/mapper/rootlocalhost mapper# ll总用量 0crw-rw- 1 root root 10, 58 7月 8 18:57 controlbrw-rw- 1 root disk 253, 0 7月 8 18:57 ddf1_4c53492020202020100000791000926147114711ca3d8277lrwxrwxrwx 1 root root 7 7月 8 18:57 ddf1_4c53492020202020100000791000926147114711ca3d8277p1 - ./dm-1lrwxrwxrwx 1 root root 7 7月 8 18:57 ddf1_4c53492020202020100000791000926147114711ca3d8277p2 - ./dm-2lrwxrwxrwx 1 root root 7 7月 8 19:01 mpatha - ./dm-3lrwxrwxrwx 1 root root 7 7月 8 19:01 mpathap1 - ./dm-5lrwxrwxrwx 1 root root 7 7月 8 19:01 mpathb - ./dm-4lrwxrwxrwx 1 root root 7 7月 8 19:01 mpathbp1 - ./dm-6rootlocalhost mapper#5.8格式化mpathap1和mpathap2rootlocalhost /# mkfs.ext4 /dev/mapper/mpathap1mke2fs 1.41.12 (17-May-2010)文件系统标签=操作系统:Linux块大小=4096 (log=2)分块大小=4096 (log=2)Stride=0 blocks, Stripe width=0 blocks6553600 inodes, 26214055 blocks1310702 blocks (5.00%) reserved for the super user第一个数据块=0Maximum filesystem blocks=4294967296800 block groups32768 blocks per group, 32768 fragments per group8192 inodes per group