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  • 上机作业六 磁盘管理综合测试2019 7 31

    2、为三块硬盘分区
    [root@localhost ~]# fdisk /dev/sdf
    欢迎使用 fdisk (util-linux 2.23.2)。

    更改将停留在内存中,直到您决定将更改写入磁盘。
    使用写入命令前请三思。

    Device does not contain a recognized partition table
    使用磁盘标识符 0xcf3610b6 创建新的 DOS 磁盘标签。

    命令(输入 m 获取帮助):n
    Partition type:
    p primary (0 primary, 0 extended, 4 free)
    e extended
    Select (default p):
    Using default response p
    分区号 (1-4,默认 1):
    起始 扇区 (2048-41943039,默认为 2048):
    将使用默认值 2048
    Last 扇区, +扇区 or +size{K,M,G} (2048-41943039,默认为 41943039):
    将使用默认值 41943039
    分区 1 已设置为 Linux 类型,大小设为 20 GiB

    命令(输入 m 获取帮助):w
    The partition table has been altered!

    Calling ioctl() to re-read partition table.
    正在同步磁盘。
    [root@localhost ~]# fdisk /dev/sde
    欢迎使用 fdisk (util-linux 2.23.2)。

    更改将停留在内存中,直到您决定将更改写入磁盘。
    使用写入命令前请三思。

    Device does not contain a recognized partition table
    使用磁盘标识符 0xfae43c11 创建新的 DOS 磁盘标签。

    命令(输入 m 获取帮助):n
    Partition type:
    p primary (0 primary, 0 extended, 4 free)
    e extended
    Select (default p):
    Using default response p
    分区号 (1-4,默认 1):
    起始 扇区 (2048-41943039,默认为 2048):
    将使用默认值 2048
    Last 扇区, +扇区 or +size{K,M,G} (2048-41943039,默认为 41943039):
    将使用默认值 41943039
    分区 1 已设置为 Linux 类型,大小设为 20 GiB

    命令(输入 m 获取帮助):w
    The partition table has been altered!

    Calling ioctl() to re-read partition table.
    正在同步磁盘。
    [root@localhost ~]# fdisk /dev/sdg
    欢迎使用 fdisk (util-linux 2.23.2)。

    更改将停留在内存中,直到您决定将更改写入磁盘。
    使用写入命令前请三思。

    Device does not contain a recognized partition table
    使用磁盘标识符 0x0e0afac9 创建新的 DOS 磁盘标签。

    命令(输入 m 获取帮助):
    命令(输入 m 获取帮助):n
    Partition type:
    p primary (0 primary, 0 extended, 4 free)
    e extended
    Select (default p):
    Using default response p
    分区号 (1-4,默认 1):
    起始 扇区 (2048-41943039,默认为 2048):
    将使用默认值 2048
    Last 扇区, +扇区 or +size{K,M,G} (2048-41943039,默认为 41943039):
    将使用默认值 41943039
    分区 1 已设置为 Linux 类型,大小设为 20 GiB

    命令(输入 m 获取帮助):w
    The partition table has been altered!

    Calling ioctl() to re-read partition table.
    正在同步磁盘。


    3、创建RAID 5

    [root@localhost ~]# mdadm -C /dev/md55 -l 5 -n 3 /dev/sd[efg]
    mdadm: /dev/sde appears to be part of a raid array:
    level=raid0 devices=0 ctime=Thu Jan 1 08:00:00 1970
    mdadm: partition table exists on /dev/sde but will be lost or
    meaningless after creating array
    mdadm: /dev/sdf appears to be part of a raid array:
    level=raid0 devices=0 ctime=Thu Jan 1 08:00:00 1970
    mdadm: partition table exists on /dev/sdf but will be lost or
    meaningless after creating array
    mdadm: /dev/sdg appears to be part of a raid array:
    level=raid0 devices=0 ctime=Thu Jan 1 08:00:00 1970
    mdadm: partition table exists on /dev/sdg but will be lost or
    meaningless after creating array
    Continue creating array? y
    mdadm: Defaulting to version 1.2 metadata
    mdadm: array /dev/md55 started.
    [root@localhost ~]# mdadm -D /dev/md55
    /dev/md55:
    Version : 1.2
    Creation Time : Sat Aug 3 13:45:55 2019
    Raid Level : raid5
    Array Size : 41910272 (39.97 GiB 42.92 GB)
    Used Dev Size : 20955136 (19.98 GiB 21.46 GB)
    Raid Devices : 3
    Total Devices : 3
    Persistence : Superblock is persistent

    Update Time : Sat Aug 3 13:46:02 2019
    State : clean, degraded, recovering
    Active Devices : 2
    Working Devices : 3
    Failed Devices : 0
    Spare Devices : 1

    Layout : left-symmetric
    Chunk Size : 512K

    Rebuild Status : 10% complete

    Name : localhost.localdomain:55 (local to host localhost.localdomain)
    UUID : 862f8db5:c4a3594c:0a7b4ffa:a5fadc0a
    Events : 2

    Number Major Minor RaidDevice State
    0 8 64 0 active sync /dev/sde
    1 8 80 1 active sync /dev/sdf
    3 8 96 2 spare rebuilding /dev/sdg


    4、创建物理卷

    [root@localhost ~]# pvcreate /dev/md55
    Physical volume "/dev/md55" successfully created
    [root@localhost ~]# pvscan
    PV /dev/sdb1 VG myvg lvm2 [20.00 GiB / 0 free]
    PV /dev/sdb2 VG myvg lvm2 [20.00 GiB / 4.99 GiB free]
    PV /dev/sda2 VG centos lvm2 [39.51 GiB / 44.00 MiB free]
    PV /dev/sdb3 lvm2 [20.00 GiB]
    PV /dev/md55 lvm2 [39.97 GiB]
    Total: 5 [139.47 GiB] / in use: 3 [79.50 GiB] / in no VG: 2 [59.97 GiB]

    5、创建卷组

    [root@localhost ~]# vgcreate vg /dev/md55
    Volume group "vg" successfully created
    [root@localhost ~]# vgscan
    Reading all physical volumes. This may take a while...
    Found volume group "myvg" using metadata type lvm2
    Found volume group "vg" using metadata type lvm2
    Found volume group "centos" using metadata type lvm2

    6、创建逻辑卷

    [root@localhost ~]# lvcreate -L +30G -n lv vg
    Logical volume "lv" created.
    [root@localhost ~]# lvscan
    ACTIVE '/dev/myvg/mylv' [35.00 GiB] inherit
    ACTIVE '/dev/vg/lv' [30.00 GiB] inherit
    ACTIVE '/dev/centos/swap' [2.00 GiB] inherit
    ACTIVE '/dev/centos/root' [37.46 GiB] inherit

    7、格式化逻辑卷

    [root@localhost ~]# mkfs.xfs /dev/vg/lv
    log stripe unit (524288 bytes) is too large (maximum is 256KiB)
    log stripe unit adjusted to 32KiB
    meta-data=/dev/vg/lv isize=256 agcount=16, agsize=491392 blks
    = sectsz=512 attr=2, projid32bit=1
    = crc=0 finobt=0
    data = bsize=4096 blocks=7862272, imaxpct=25
    = sunit=128 swidth=256 blks
    naming =version 2 bsize=4096 ascii-ci=0 ftype=0
    log =internal log bsize=4096 blocks=3840, version=2
    = sectsz=512 sunit=8 blks, lazy-count=1
    realtime =none extsz=4096 blocks=0, rtextents=0

    8、安装apache
    [root@localhost ~]# bash yuanma.sh
    #!/bin/bash

    yum -y install gcc gcc-c++

    tar xf httpd-2.2.17.tar.gz -C /usr/src
    cd /usr/src/httpd*
    ./configure --prefix=/usr/local/apache
    make
    make install
    cd /usr/local/apache/conf/
    set "s/#ServerName w/ServerName w" /httpd.conf
    /usr/local/apache/bin/apachectl start

    yum -y install lynx
    lynx 127.0.0.1

    9、挂载
    [root@localhost ~]# mount -0 usrquota,grpquota /dev/vg/lv /usr/local/apache/htdocs
    [root@localhost ~]# df -hT
    文件系统 类型 容量 已用 可用 已用% 挂载点
    /dev/mapper/centos-root xfs 38G 3.6G 34G 10% /
    devtmpfs devtmpfs 985M 0 985M 0% /dev
    tmpfs tmpfs 994M 80K 994M 1% /dev/shm
    tmpfs tmpfs 994M 8.9M 985M 1% /run
    tmpfs tmpfs 994M 0 994M 0% /sys/fs/cgroup
    /dev/md5 xfs 20G 33M 20G 1% /data1
    /dev/md0 xfs 20G 33M 20G 1% /data2
    /dev/sda1 xfs 497M 107M 391M 22% /boot
    /dev/mapper/vg-lv xfs 30G 33M 30G 1% /usr/local/apache/htdocs

    10、磁盘配额
    [root@localhost ~]# quotacheck -auvg
    quotacheck: Skipping /dev/mapper/myvg-mylv [/data]
    quotacheck: Skipping /dev/mapper/vg-lv [/usr/local/apache/htdocs]
    quotacheck: Cannot find filesystem to check or filesystem not mounted with quota option.
    [root@localhost ~]# quotaon -avug

    11、创建index.html
    [root@localhost ~]# cd /usr/local/apache/htdocs
    [root@localhost htdocs]# vim index.html
    <html><body><h1>胡富豪</h1></body></html>


    12、创建用户并对LVM配置磁盘配额
    [root@localhost ~]#useradd -d /usr/local/apache/htdocs/hfh hfh
    [root@localhost ~]# edquota -u hfh
    Disk quotas for user hfh (uid 1001):
    Filesystem blocks soft hard inodes soft hard
    /dev/mapper/myvg-mylv 0 0 0 0 0 0
    /dev/mapper/vg-lv 12 81920 102400 7 80 100

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  • 原文地址:https://www.cnblogs.com/hfh1/p/11295363.html
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