linux下san存储多路径软件的配置

linux下，san存储多路径软件的配置

1、使用 ntsysv 命令
将mulitipath服务开启
 

• multipathd
  
  2、启动该服务
  
  [root@mail init.d]# service multipathd start
  Starting multipathd daemon:
  
  3、修改配置文件/etc/multipath.conf
  
  vi /etc/multipath.conf
  
  # This is a basic configuration file with some examples, for device mapper
  # multipath.
  # For a complete list of the default configuration values, see
  # /usr/share/doc/device-mapper-multipath-0.4.7/multipath.conf.defaults
  # For a list of configuration options with descriptions, see
  # /usr/share/doc/device-mapper-multipath-0.4.7/multipath.conf.annotated
  
  
  # Blacklist all devices by default. Remove this to enable multipathing
  # on the default devices.
  blacklist {
  # devnode "*"
  }
  
  ## By default, devices with vendor = "IBM" and product = "S/390.*" are
  ## blacklisted. To enable mulitpathing on these devies, uncomment the
  ## following lines.
  #blacklist_exceptions {
  
  4、使用 multipath -F 删除现有路径
  
  5、multipath -v2 格式化路径
  
  6、使用 multipath -ll 查看多路径
  
  [root@mail /]# multipath -ll
  mpath0 (3600508b40006ea6e0001a000002a0000) dm-2 HP,HSV210
  [size=500G][features=1 queue_if_no_path][hwhandler=0]
  \_ round-robin 0 [prio=100][active]
  \_ 0:0:2:1 sdc 8:32 [active][ready]
  \_ 0:0:3:1 sdd 8:48 [active][ready]
  \_ round-robin 0 [prio=20][enabled]
  \_ 0:0:0:1 sda 8:0 [active][ready]
  \_ 0:0:1:1 sdb 8:16 [active][ready]
  
  7、使用fdisk -l 查看多路径的情况
  
  [root@mail /]# fdisk -l
  
  Disk /dev/cciss/c0d0: 146.7 GB, 146778685440 bytes
  255 heads, 63 sectors/track, 17844 cylinders
  Units = cylinders of 16065 * 512 = 8225280 bytes
  
  Device Boot Start End Blocks Id System
  /dev/cciss/c0d0p1 * 1 13 104391 83 Linux
  /dev/cciss/c0d0p2 14 17844 143227507+ 8e Linux LVM
  
  Disk /dev/cciss/c0d1: 733.9 GB, 733909245952 bytes
  255 heads, 63 sectors/track, 89226 cylinders
  Units = cylinders of 16065 * 512 = 8225280 bytes
  
  Device Boot Start End Blocks Id System
  /dev/cciss/c0d1p1 * 1 89226 716707813+ 83 Linux
  
  Disk /dev/sda: 536.8 GB, 536870912000 bytes
  255 heads, 63 sectors/track, 65270 cylinders
  Units = cylinders of 16065 * 512 = 8225280 bytes
  
  Disk /dev/sda doesn't contain a valid partition table
  
  Disk /dev/sdb: 536.8 GB, 536870912000 bytes
  255 heads, 63 sectors/track, 65270 cylinders
  Units = cylinders of 16065 * 512 = 8225280 bytes
  
  Disk /dev/sdb doesn't contain a valid partition table
  
  Disk /dev/sdc: 536.8 GB, 536870912000 bytes
  255 heads, 63 sectors/track, 65270 cylinders
  Units = cylinders of 16065 * 512 = 8225280 bytes
  
  Disk /dev/sdc doesn't contain a valid partition table
  
  Disk /dev/sdd: 536.8 GB, 536870912000 bytes
  255 heads, 63 sectors/track, 65270 cylinders
  Units = cylinders of 16065 * 512 = 8225280 bytes
  
  Disk /dev/sdd doesn't contain a valid partition table
  
  Disk /dev/dm-2: 536.8 GB, 536870912000 bytes
  255 heads, 63 sectors/track, 65270 cylinders
  Units = cylinders of 16065 * 512 = 8225280 bytes
  
  Disk /dev/dm-2 doesn't contain a valid partition table
  
  8、格式化
  
  mkfs -t extx /dev/dm-2
  
  9、挂载即可使用