CentOS系统光纤连接存储的多路径配置及使用方法.doc

CentOS系统光纤连接存储的多路径配置及使用方法1、 安装多路径软件包：device-mapper-1.02.67-2.el5device-mapper-event-1.02.67.2.el5device-mapper-multipath-0.4.7-48.el52、 检查安装包的安装情况#rpm -aq |grep multipath3、 安装上述多路径软件包# rpm -ivh device-mapper-1.02.67-2.el5.x86_64.rpm# rpm -ivh device-mapper-event-1.02.67-2.el5.x86_64.rpm# rpm -ivh device-mapper-multipath-0.4.7-48.el5.x86_64.rpm安装过程中可能会提示需要安装其他的关联软件包 ：主要与多路径软件相关联的软件包如下 ：libaio-0.3.107-10.e16.i686.rpmlibaio-03107-10.e16.x86_64.rpmlibaio-devel-03107-10.e16.i686.rpmlibaio-devel-03107-10.e16.x86_64.rpm如服务器可以连接公网的话 ，可直接用yum来安装,yum会自动将相关联的软件安装上#yum in stall y device-mapper*检查安装情况#rpm -aq|grep multipath[root@ahlt imt 3 f"] # rpm -sq| grep mult ipathdevi c n app e r-mult ip at h-0 < 4* 9-72・ el6_5.2, devi c e-mapp e r-mult ip at h-1ib 0.4.S-72» e!6_5.N x36_64安装完成后需重启机器.4、配置多路径软件 multipath4.1 、将多路径软件添加至内核模块中#modprobe dm-multipath#modprobe dm-round-robin检查内核添加情况#lsmod |grep multipathLroot@ahlt lint 3 ] # Ismod | grep ipathdm_ mult ip at h 17724 43 djn_rnund_robindni^iiod 84337 85 dm_inult lpath^ din_iiiirrorj dn_log4.2、将多路径软件 multipath设置为开机自启动 #chkco nfig --level 2345 multipathd on 检查#chkc onfig --list|grep multipathd[root*®ahltimt3 J# chkconf ig 一list |grep multipathdmultipathd 0:off 1:off 2:on 3:on 4：on 5:on 6：off启动multipath服务#service multipathd restart4.3、配置 multipath 软件,编辑 /etc/multipath.conf注意:默认情况下，/etc/multipath.conf是不存在的，需要做如下准备工作4.3.1、 cd至/sbin下，用如下命令生成 multipath.conf文件：#mpathc onf --e nable --fi nd_multipaths y --with_module y --with_chkc onfig y4.3.2、 查看并获取存储分配给服务器的逻辑盘 lun的wwid信息#more /etc/multipath/wwids[rootfeahltiifct3 J# more /etc/multipath/wids|more# T^ultipath widSj Version : L 0# NOTE: This file is automatically ained by multipath and multipathd*# You should not need to edit this file in normal circumstances.# Valid WIDs:/36006076300BlEld6d000000000000002//360050763008181d6d00000000000001a//3600507e30081Sld6dOOOClOD00000001b//36D05076300S18IdSdOOOOOOOOOOOOOlc//36005076300818IdCdOOOOODOOOOOOOld//36005076300B181dGdOOOOOOOOOOOOOle//36005076300E181d6d00000000000001f/ /36005076300E181d6d000000000000020//36005076300ElSld6d000000000000021//360050763008181d6d000000000000022//36005076300B161d6(1000000000000024/7360050763008 IS 1d6d000000000000025//36005076300E1G1d6d00000a000000023//36005076300B181d6d000000000000027//36005076300E181d6d000000000000026//36005076300E181d6d000000000000028//36005076300GlSld6dOOODC000000002a/multipath.conf 保留，重新 vim个新的编辑/etc/multipath.conf,编辑 multipath 的配置文件时，可将自动生成的multipath 文件.#vim /etc/multipath.c onf[root@ahltimt3 〜]# vim /etc/multipath.conf defaults {find_multipaths yesuser_friendly_names noblacklist {#——黑名单项:即不使用多路径的硬盘，如服务器本地盘等wwid 3600508b1001c5ae72efe1fea025cd2e5# 不使用多路径的本地盘 wwid号devnode "Ahd[a-z]"# 不使用多路径的本地盘 hd名称multipaths {#---使用多路径软件项multipath {#---单块存储盘配置，如有多块存储盘，如多个multipath。

配置wwidaliaspath_grouping_policy path_selector failback360050763008181d6d000000000000021IBMStorageOOlmultibus"round-robin 0"manual#---使用多路径的存储盘 wwid号#该存储盘多路径后的别名rr_weightprioritiesno_path_retry 5}multipath {wwidaliaspath_grouping_policy path_selector failbackrr_weight no_path_retry}}devices {device {vendor product path_grouping_policy getuid_callout path_checker path_selector hardware_handler failbackrr_weight no_path_retry360050763008181d6d000000000000022IBMStorage002multibus"round-robin 0"manualpriorities5"IBM""V5000"multibus"/lib/udev/scsi_id --whitelisted --device=/dev/%n"readsector0"round-robin 0""0"15prioritiesqueue#---存储厂家名称#---存储产品型号}保存文件后退出4.4、启动 multipath 配置#multipath -/2[root Tahiti mt 3 mapper] # mult ipath -v2create： IEKStorageO15 (360050763008181d6d000000000000001) undef 2145 size=200G f eaitures=h 1 queue_if_rua_path* hwharudler=，[T i¥p=undef'J— policy=T tound-rabin 0r prio=30 status=uridef-0:0:0：1sdb8:16undefreadytunning-0:0:1:1sdaw67:0undefreadyrunning-1:0:0：1s det?0： 16undjefreadyrunning-1:0:1:1sdeo129:0undefreadyrunningcreate： IEIStorage032 <3600507S300818ld£d000000000000000) undef 2145 size=200G f eacturBS=' 1 queue_if_rio_pathT hwhandler=' CT wp^undef'--i— policy^" round-robin Q? pric=30 status=undef-0:0:0:0sda8:0undefreadyrurming-0:0；1:0sdav66:240undefreadyrunning-l:0:0:0sdcs70:0undefreadyrunning-l;U:l:Dsden128:240undefreadyrunningcreate: IBIStora£e018 <3600507630081SldfidOO0000000000003) undef 181,2145 size=200G features=，1 queue_if_no_pathvrhandler=，(T wp=undef'--I— policy^* rourul-robin 0? prio=30 status=urudef-0i0:0:3sdd8:48tmdefreadyrunningj- 0:0： 1:3sday67:32undefreadyrunning-l:0:0:3sdev丁口：4&undefreadyrunning-1:0： 1:3sdeq129:32undefreadyruimiingWARNING: DOS-compatible mode is deprecated. It's strongly recommended to由上图可看出，。