服务器多路径挂载FC存储

1、服务器多路径挂载FC存储一、物理连接1、打开服务器，将HBA卡插入插槽，并将光线连接到光线交换机。注意光线如果插反会无法 正常通信，也不会亮。二、存储设置2、进入存储管理界面，进行分配存储空间与映射三、服务器设置rpm常用命令参数说明：rpm -e xxxxx -nodeps# RPM 强制卸载rpm -ivh xxxxxx replacepkgs # RPM将忽略软件包已被安装强行安装rpm -ivh xxxxxx -replacefiles # RPM 将忽略文件冲突强行安装rootDCXZM-SR43-NF5270M3 home# rpm -e kpartx-0.4.9-87.el6.x

2、86_64 nodepsrootDCXZM-SR43-NF5270M3 home# rpm -ivh kpartx-0.4.9-93.el6.x86_64.rpmPreparing.# 100%1:kpartx# 100%rootDCXZM-SR43-NF5270M3 home# rpm -ivh device-mapper-multipath-libs-0.4.9-93. el6.x86_64.rpmPreparing.# 100%1:device-mapper-multipath# 100% rootDCXZM-SR43-NF5270M3 home# rpm -ivh device-map

3、per-multipath-0.4.9-93.el6.x 86_64.rpmPreparing.# 100%1:device-mapper-multipath# 100% rootDCXZM-SR43-NF5270M3 home# service multipathd status multipathd is stoppedrootDCXZM-SR43-NF5270M3 home# service multipathd startStarting multipathd daemon: OK rootDCXZM-SR43-NF5270M3 home# chkconfig multipathd o

4、n通过mulitpath -l查看磁盘所有路径，然后通过multipath -f删除磁盘。rootDCXZM-SR43-NF5270M3 by-id# multipath-lNov 04 11:12:03 | /etc/multipath.conf does not exist, blacklisting all devices.Nov 04 11:12:03 | A sample multipath.conf file is located atNov 04 11:12:03 | /usr/share/doc/device-mapper-multipath-0.4.9/multipath.c

5、onfNov 0411:12:03| You can run /sbin/mpathconf to create or modify/etc/multipath.confrootDCXZM-SR43-NF5270M3 by-id# cp /usr/share/doc/device-mapper-multipath-0.4.9/multipath.conf /etc/multipath.confrootDCXZM-SR43-NF5270M3 # vim /etc/multipath.confraotDCXZM-SR43-NF5270rvl3:一 defaults user_friendly_na

6、mes yes path_grouping_policy multibus fallback immediateno_path_retry failblacklist devnodedevnodedevnodedefaults user_friendly_names yespath_grouping_policy multibusfailback immediate no_path_retry failblacklist # wwid 26353900f02796769devnode Xram|raw|loop|fd|md|dm-|sr|scd|st)0-9*“devnode hda-zdev

7、node sdaREMEMBER: After updating multipath.conf, you must run# service multipathd reloadrootDCXZM-SR43-NF5270M3 # multipath -F #删除现有路径rootDCXZM-SR43-NF5270M3 # multipath -v2 #格式化路径rootDCXZM-SR43-NF5270M3 # multipath -ll #查看多路径mpathb (3600c0ff000279353dac7105801000000) dm-2 HP,MSA 2040 SANsize=931G f

8、eatures=0 hwhandler=0 wp=rw-+- policy=round-robin 0 prio=1 status:active|- 6:0:1:0sdc8:32activereadyrunning|- 7:0:0:0sdd8:48activereadyrunning|- 6:0:0:0sdb8:16activereadyrunning-7:0:1:0sde8:64activereadyrunningrootDCXZM-SR43-NF5270M3 # pvcreate /dev/mapper/mpath0Device /dev/mapper/mpath0 not found (

9、or ignored by filtering).rootDCXZM-SR43-NF5270M3 # ll /dev/mapper/mpathbanaconda-ks.cfg .bash_history .bash_logout .bash_profile .bashrc.cshrc drbd_cfg fs_cfg install.logmysql_cfg .mysql_history .ssh/.tcshrcinstall.log.syslog .viminforootDCXZM-SR43-NF5270M3 # pvcreate /dev/mapper/mpathbPhysical volu

10、me /dev/mapper/mpathb successfully created rootDCXZM-SR43-NF5270M3 # fdisk /dev/mapper/mpathb用fdisk对多路径软件生成的磁盘进行分区保存时会有一个报错，此报错不用理会。Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel Building a new DOS disklabel with disk identifier 0 xc5fd0783.Changes will remain in

11、memory only, until you decide to write them.After that, of course, the previous content wont be recoverable.Warning: invalid flag 0 x0000 of partition table 4 will be corrected by w(rite)WARNING: DOS-compatible mode is deprecated. Its strongly recommended to switch off the mode (command c) and chang

12、e display units to sectors (command u).Command (m for help): wThe partition table has been altered!Calling ioctl() to re-read partition table.WARNING: Re-reading the partition table failed with error 22: Invalid argument. The kernel still uses the old table. The new table will be used at the next re

13、boot or after you run partprobe(8) or kpartx(8)Syncing disks.扫描物理卷lvm2 lvm2 GiB557.91 GiB / 92.09 GiB free 931.32 GiB/ in no VG: 1 931.32 GiBrootDCXZM-SR43-NF5270M3 # pvscanPV /dev/sda2VG vg_ywjkappPV /dev/mapper/mpathbTotal: 2 1.45 TiB / in use: 1 557.91创建卷组rootDCXZM-SR43-NF5270M3 # vgcreate mysql

14、/dev/mapper/mpathbVolume group mysql successfully created扫描当前系统中建立的LVM卷组，并显示信息。rootDCXZM-SR43-NF5270M3 # vgscanReading all physical volumes. This may take a while.Found volume group mysql using metadata type lvm2Found volume group vg_ywjkapp using metadata type lvm2vgcreate命令第一个参数是指定该卷组的逻辑名：eccdbvg。

15、后面参数是指定希望添加到该 卷组的所有分区和磁盘。vgcreate在创建卷组eccdbvg以外，还设置使用大小为4 MB的 PE （默认为4MB），这表示卷组上创建的所有逻辑卷都以4 MB为增量单位来进行扩充或 缩减。由于内核原因，PE大小决定了逻辑卷的最大大小，4 MB的PE决定了单个逻辑卷最 大容量为256 GB，若希望使用大于256G的逻辑卷则创建卷组时指定更大的PE。PE大小范 围为8 KB到512 MB，并且必须总是2的倍数（使用-s指定，具体请参考 man vgcreate）。激活卷组rootDCXZM-SR43-NF5270M3 # vgchange -a y mysql0 lo

16、gical volume(s) in volume group mysql now active创建逻辑卷其中，前一个mysql是逻辑卷名，后一个是卷组名rootDCXZM-SR43-NF5270M3 # lvcreate -L 200G -n mysql mysqlLogical volume mysql created.rootDCXZM-SR43-NF5270M3 #查看刚刚创建的逻辑卷- Logical volume -LV PathLV NameVG NameLV UUIDLV Write AccessrootDCXZM-SR43-NF5270M3 # lvdisplay /dev/

17、mysql/mysql /dev/mysql/mysqlmysqlmysqlFtMhEn-tFiO-Uh8x-uh5P-1fsr-I9wN-MK3m5y read/writeLV Creation host, time DCXZM-SR43-NF5270M3, 2016-11-04 14:15:07 +0800LV Status # open LV Size Current LE Segments AllocationRead ahead sectors - currently set to Block deviceavailable0200.00 GiB 512001 inherit aut

18、o256253:5配置 ext4 文件系统磁盘rootDCXZM-SR43-NF5270M3 # mkfs.ext4 -T laragefile /dev/mysql/mysqlmke2fs 1.41.12 (17-May-2010)Discarding device blocks: doneFilesystem label=OS type: LinuxBlock size=4096 (log=2)Fragment size=4096 (log=2)Stride=0 blocks, Stripe width=256 blocks13107200 inodes, 52428800 blocks2

19、621440 blocks (5.00%) reserved for the super userFirst data block=0Maximum filesystem blocks=42949672961600 block groups32768 blocks per group, 32768 fragments per group8192 inodes per group32768, 98304, 163840, 229376, 294912,4096000, 7962624, 11239424, 20480000,819200, 884736, 1605632, 2654208,238

20、87872Superblock backups stored on blocks:Writing inode tables: doneCreating journal (32768 blocks): doneWriting superblocks and filesystem accounting information: doneThis filesystem will be automatically checked every 37 mounts or 180 days, whichever comes first. Use tune2fs -c or -i to override. rootDCXZM-SR43-NF5270M3 #rootDCXZM-SR43-NF5270M3 /# mount /dev/mysql/mysql /mysql rootDCXZM-SR43-NF5270M3 /# dfFilesystem1K-blocks Used Available Use%