- ·上一篇文章:Linux如何在VIM编辑器中修改Tab为4个空格
- ·下一篇文章:Linux系统使用命令行执行php文件传参的步骤
Linux系统怎么配置多路径
Linux多路径指的是除了主机和硬盘一条路径的连接,还包括了主机和网络服务器的连接形成的主机一对多的路径连接关系。通过多路径的连接,实现了磁盘的虚拟化。今天华军小编给大家展示的是Linux系统怎么配置多路径,精心挑选的内容希望大家多多支持、多多分享,喜欢就赶紧get哦! 1、安装多路径软件包: device-mapper-1.02.67-2.el5 device-mapper-event-1.02.67.2.el5 device-mapper-multipath-0.4.7-48.el5 [root@RKDB01 Server]# rpm -ivh device-mapper-1.02.67-2.el5.x86_64.rpm warning: device-mapper-1.02.67-2.el5.x86_64.rpm: Header V3 DSA signature: NOKEY, key ID 37017186 Preparing.。。 ########################################### [100%] package device-mapper-1.02.67-2.el5.x86_64 is already installed [root@RKDB01 Server]# rpm -ivh device-mapper-event-1.02.67-2.el5.x86_64.rpm warning: device-mapper-event-1.02.67-2.el5.x86_64.rpm: Header V3 DSA signature: NOKEY, key ID 37017186 Preparing.。。 ########################################### [100%] package device-mapper-event-1.02.67-2.el5.x86_64 is already installed [root@RKDB01 Server]# rpm -ivh device-mapper-multipath-0.4.7-48.el5.x86_64.rpm warning: device-mapper-multipath-0.4.7-48.el5.x86_64.rpm: Header V3 DSA signature: NOKEY, key ID 37017186 Preparing.。。 ########################################### [100%] package device-mapper-multipath-0.4.7-48.el5.x86_64 is already installed 2、设置开机启动,并检查安装包是否正常: chkconfig --level 345 multipathd on lsmod |grep dm_multipath [root@RKDB01 Server]# chkconfig --level 345 multipathd on [root@RKDB01 Server]# lsmod |grep dm_multipath dm_multipath 58969 0 scsi_dh 42561 1 dm_multipath dm_mod 102417 4 dm_mirror,dm_multipath,dm_raid45,dm_log [root@RKDB01 Server]# 3、配置multipathd 使其正常工作,编辑/etc/multipath.conf,开放如下内容: defaults { udev_dir /dev polling_interval 10 selector “round-robin 0” path_grouping_policy multibus getuid_callout “/sbin/scsi_id -g -u -s /block/%n” prio_callout none path_checker readsector0 rr_min_io 100 max_fds 8192 rr_weight priorities failback immediate no_path_retry fail user_friendly_names yes } blacklist { wwid 26353900f02796769 devnode “^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*” devnode “^hd[a-z]” } 4、并关闭如下内容 #blacklist { # devnode “*” #} #defaults { 27 # user_friendly_names yes 28 #} 5、完成之后执行如下命令发现多路径: [root@RKDB01 Server]# modprobe dm-multipath [root@RKDB01 Server]# multipath -F [root@RKDB01 Server]# multipath dm-multipath [root@RKDB01 Server]# multipath dm-round-robin [root@RKDB01 Server]# service multipathd restart 正在关闭multipathd 端口监控程序: [确定] 正在启动守护进程multipathd: [确定] [root@RKDB01 Server]# multipath -v2 [root@RKDB01 Server]# multipath -v2 [root@RKDB01 Server]# multipath -ll mpath1 (3600d02310000011b16a5d57c6a1bd99a) dm-0 TOYOU,NetStor_iSUM510 [size=3.3T][features=0][hwhandler=0][rw] \_ round-robin 0 [prio=2][ena bled] \_ 1:0:0:0 sdb 8:16 [failed][ready] \_ 1:0:1:0 sdc 8:32 [failed][ready] [root@RKDB01 Server]#
Linux系统怎么配置多路径