磁盤陣列ess操作手冊device mapper multipath

iSCSIRHEL4,RHEL5,RHEL6SLES10,SLES11chl0主機通道和服務器上的ech0網(wǎng)口直連，chl1ech1直連，將磁盤陣列上的同一個Partition分別映射給chl0chl1主機通道。chlchlethethRHELIP默認安裝完成系統(tǒng)后默認只配置了網(wǎng)卡eth0IP地址，須配置其它和盤陣主機端口直連的網(wǎng)卡的IP地址。配置網(wǎng)卡eth1IPviifcfg-eth1rpm–qa|grepcat如果只有“InitiatorName=”則使用如下命令添加IQN。修改配置文件vi/etc/iscsi.conf如果要刪除節(jié)點，就將相應的“DiscoveryAddress=IP:3260iSCSI服iscsiserviceiscsistop#關閉iscsi服務serviceiscsirestart#重啟iscsi服務defaults{udev_dirpath_grou_multibusfailbackimmediateno_path_retryfailuser_friendly_namesyes}servicemultipathdstart#啟動multipathd服務servicemultipathdstop#關閉multipathd服務servicemultipathdrestart#重啟multipathd服務#–# multipath–F清除多路徑設備緩存multipath–v3如果還不能看見，就重啟multipatdmkfs.ext3/dev/mapper/mpath2p1 #mpath2p1分區(qū)創(chuàng)建ext3文件系統(tǒng) 針對iSCSI磁盤陣列，RHEL4默認的會數(shù)據(jù)包，導致性能低下。 #/etc/init.d/iptablesrestart重啟RHELIP默認安裝完成系統(tǒng)后默認只配置了網(wǎng)卡eth0IP地址，須配置其它和盤陣主機端口直連的網(wǎng)卡的IP地址。配置網(wǎng)卡eth1IPviifcfg-eth1rpm–qa|grepcatnode.startup=automaticiscsiserviceiscsistart#啟動iscsi服務serviceiscsistop#關閉iscsi服務serviceiscsirestart#重啟iscsi服務#iscsiadmmnodeodeleteTIQNpIP刪除節(jié)點IQN:目標端的IQNIP:IPrmrfvar/lib/iscsi/send_targets/*刪除目標端serviceiscsistart#啟動iscsi服務::iscsiadmmnodeUall登出所以節(jié)點modprobedm_multipath#dm_multipath加入內核編輯device-mapper-multipath配置文件defaults{udev_dirpath_grou_multibusfailbackimmediateno_path_retryfailuser_friendly_namesyes}servicemultipathdstart#啟動multipathd服務servicemultipathdstop#關閉multipathd服務servicemultipathdrestart#重啟multipathd服務#–# multipath–F清除多路徑設備緩存multipath–v3如果還不能看見，就重啟multipatd服務mkfs.ext3/dev/mapper/mpath3p1 #mpath3p1分區(qū)創(chuàng)建ext3文件系統(tǒng) 針對iSCSI磁盤陣列，RHEL5默認的會數(shù)據(jù)包，導致性能低下。 #/etc/init.d/iptablesrestart重啟RHELIP默認安裝完成系統(tǒng)后默認只配置了網(wǎng)卡eth0IP地址，須配置其它和盤陣主機端口直連的網(wǎng)卡的IP地址。配置網(wǎng)卡eth1IPviifcfg-eth1安裝系統(tǒng)時可以選擇安裝iSCSIStorage 果安裝系統(tǒng)時沒有安裝iscsi-initiator-utils包，在安裝盤里找到后安裝。rpm–qa|grepcatechoInitiatorName=`iscsi-iname`etciscsi/initiatorname.iscsinode.startup=automaticiscsi#iscsiadmmnode-odeleteTIQNpIP刪除節(jié)點IQN:目標端的IQN號IP:IP地址rmrf/var/lib/iscsi/send_targets/*刪除目標端serviceiscsistart#啟動iscsi服務::iscsiadmmnodeUall登出所以節(jié)點modprobedm_multipath#dm_multipath加入內核編輯device-mapper-multipath配置文件defaults{udev_dirpath_grou_multibusfailbackimmediateno_path_retryfailuser_friendly_namesyes}servicemultipathdstart#啟動multipathd服務servicemultipathdstop#關閉multipathd服務servicemultipathdrestart#重啟multipathd服務#–# multipath–F清除多路徑設備緩存multipath–v3如果還不能看見，就重啟multipatd服務mkfs.ext3/dev/mapper/mpathdp1 #mpathdp1分區(qū)創(chuàng)建ext3文件系統(tǒng) 針對iSCSI磁盤陣列，RHEL6默認的會數(shù)據(jù)包，導致性能低下。 #/etc/init.d/iptablesrestart重啟SLESIP的IP地址。catcdrpm–qa|grepcatnode.startup=automaticopen-iscsi#iscsiadmmnodeodeleteTIQNpIP刪除節(jié)點IQN:目標端的IQNIP:IPrmrf/etc/iscsi/send_targets/*刪除目標端::cp/usr/share/doc/packages/multipath-tools/multipath.conf.synthetic/etc/multipath.confvi/etc/multipath.conf{path_grou_multibusfailbackimmediateno_path_retryfailuser_friendly_namesyes}servicemultipathdstart#啟動multipathd服務servicemultipathdstop#關閉multipathd服務servicemultipathdrestart#重啟multipathd服務#–# multipath–F清除多路徑設備緩存multipath–v3如果還不能看見，就重啟multipatd/ 關閉yastSystem->SystemServicesRunlevel)SuSEfirewall2_setupEnabled值是Yes，就按Alt+D，禁用；如果Enabled值是No，就檢查狀態(tài)SLESIP安裝完成系統(tǒng)后默認只配置了網(wǎng)卡eth0IP地址，須配置其它和盤陣主機端口直連的網(wǎng)卡的IP地址。配置網(wǎng)卡eth1IP/#rpm–qa|grepcatnode.startup=automaticopen-iscsi#iscsiadmmnodeodeleteTIQNpIP刪除節(jié)點IQN:目標端的IQNIP:IPrmrf/etc/iscsi/send_targets/*刪除目標端::#cp/usr/share/doc/packages/multipath-tools/multipath.conf.synthetic/etc/multipath.confvi/etc/multipath.conf{path_grou_multibusfailbackimmediateno_path_retryfailuser_friendly_namesyes}servicemultipathdstart#啟動multipathd服務servicemultipathdstop#關閉multipathd服務servicemultipathdrestart#重啟multipathd服務