zoukankan      html  css  js  c++  java
  • 06

    1.为主机增加80G SCSI 接口硬盘

     

     2.划分三个各20G的主分区

     设备 Boot      Start         End      Blocks   Id  System

    /dev/sde1            2048    41945087    20971520   83  Linux

    /dev/sde2        41945088    83888127    20971520   83  Linux

    /dev/sde3        83888128   125831167    20971520   83  Linux

    3.将三个主分区转换为物理卷(pvcreate),扫描系统中的物理卷

    [root@localhost ~]# partprobe

    [root@localhost ~]# pvcreate /dev/sde[123]

      Physical volume "/dev/sde1" successfully created

      Physical volume "/dev/sde2" successfully created

      Physical volume "/dev/sde3" successfully created

    [root@localhost ~]# pvs

      PV         VG     Fmt  Attr PSize  PFree

      /dev/sda2  centos lvm2 a--  39.51g 44.00m

      /dev/sde1         lvm2 ---  20.00g 20.00g

      /dev/sde2         lvm2 ---  20.00g 20.00g

      /dev/sde3         lvm2 ---  20.00g 20.00g

    4.使用两个物理卷创建卷组,名字为myvg,查看卷组大小

    [root@localhost ~]# vgcreate myvg /dev/sde[12]

      Volume group "myvg" successfully created

    root@localhost ~]# vgdisplay myvg

      --- Volume group ---

      VG Name               myvg

      System ID            

      Format                lvm2

      Metadata Areas        2

      Metadata Sequence No  1

      VG Access             read/write

      VG Status             resizable

      MAX LV                0

      Cur LV                0

      Open LV               0

      Max PV                0

      Cur PV                2

      Act PV                2

      VG Size               39.99 GiB

      PE Size               4.00 MiB

      Total PE              10238

      Alloc PE / Size       0 / 0  

      Free  PE / Size       10238 / 39.99 GiB

      VG UUID               jErgbm-XFFz-EVQ5-rntZ-tE1R-083O-wnRvmF

    5.创建逻辑卷mylv,大小为30G

    [root@localhost ~]# lvcreate -L 30G -n mylv myvg

      Logical volume "mylv" created.

    6.将逻辑卷格式化成xfs文件系统,并挂载到/data目录上,创建文件测试

    [root@localhost ~]# mkfs.xfs /dev/myvg/mylv

    meta-data=/dev/myvg/mylv         isize=256    agcount=4, agsize=1966080 blks

             =                       sectsz=512   attr=2, projid32bit=1

             =                       crc=0        finobt=0

    data     =                       bsize=4096   blocks=7864320, imaxpct=25

             =                       sunit=0      swidth=0 blks

    naming   =version 2              bsize=4096   ascii-ci=0 ftype=0

    log      =internal log           bsize=4096   blocks=3840, version=2

             =                       sectsz=512   sunit=0 blks, lazy-count=1

    realtime =none                   extsz=4096   blocks=0, rtextents=0

    7.增大逻辑卷到35G

    [root@localhost ~]# lvextend -L +5G /dev/myvg/mylv

      Size of logical volume myvg/mylv changed from 30.00 GiB (7680 extents) to 35.00 GiB (8960 extents).

      Logical volume mylv successfully resized

    [root@localhost ~]# lvs

      LV   VG     Attr       LSize  Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert

      root centos -wi-ao---- 37.46g                                                   

      swap centos -wi-ao----  2.00g                                                   

      mylv myvg   -wi-a----- 35.00g      

    8.编辑/etc/fstab文件挂载逻辑卷,并支持磁盘配额选项

    [root@localhost ~]# vi /etc/fstab

    /dev/myvg/mylv      /data     xfs              auto       0 0

  • 相关阅读:
    ADSL自动更换IP的方法
    css框架 一个可控性强的css+xhtml页面布局生成器。
    Linux环境配置之LAMP搭建(源码安装)
    PHP小技巧
    Google首页电吉他源代码下载
    Jquery 插件可以用来操作定界窗,将在定界窗内选取的项目放到父窗口内
    今天見鬼了
    今天闲着没事去公园玩了一下,随手拍了几张
    PHP利用PHPMailer组件的Gmail发信能力发送电子邮件
    端午节放假去台湾中部山区野餐时照的
  • 原文地址:https://www.cnblogs.com/XXXX001/p/11285193.html
Copyright © 2011-2022 走看看