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  • Linux添加新硬盘

    echo "- - -" > /sys/class/scsi_host/host0/scan
    fdisk -l
    fdisk /dev/sdb
    pvcreate /dev/sdb1
    vgdisplay 查看卷组的名字
    --- Volume group ---
    VG Name vg_app00 卷组的名字
    System ID
    Format lvm2
    Metadata Areas 2
    Metadata Sequence No 4
    VG Access read/write
    VG Status resizable
    MAX LV 0
    Cur LV 2
    Open LV 2
    Max PV 0
    Cur PV 2
    Act PV 2
    VG Size 52.80 GiB
    PE Size 4.00 MiB
    Total PE 13517
    Alloc PE / Size 12674 / 49.51 GiB
    Free PE / Size 843 / 3.29 GiB
    VG UUID PLXhIk-axTB-UcSH-SzBq-UBlE-WTMW-4E3gcS
    vgextend vg_app00 /dev/sdb1
    df -hT 查磁盘的不足的在哪
    Filesystem Type Size Used Avail Use% Mounted on
    /dev/mapper/vg_app00-lv_root
    ext4 49G 5.0G 41G 11% /
    tmpfs tmpfs 1.9G 228K 1.9G 1% /dev/shm
    /dev/sda1 ext4 49G 5.0G 41G 11% /boot
    /dev/sr0 iso9660 3.6G 3.6G 0 100% /media/cdrom

    mount 查看一下你要扩展的
    /dev/mapper/vg_app00-lv_root on / type ext4 (rw)
    proc on /proc type proc (rw)
    sysfs on /sys type sysfs (rw)
    devpts on /dev/pts type devpts (rw,gid=5,mode=620)
    tmpfs on /dev/shm type tmpfs (rw)
    /dev/sda1 on /boot type ext4 (rw)
    none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
    gvfs-fuse-daemon on /root/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev)
    /dev/sr0 on /media/cdrom type iso9660 (ro)

    lvextend -l +100%FREE /dev/mapper/vg_app00-lv_root
    resize2fs /dev/mapper/vg_app00-lv_root
    df -hT查看/dev/mapper/vg_app00-lv_root exit4 原来有46G 又增加了3个G证明成功

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  • 原文地址:https://www.cnblogs.com/LilL/p/6244873.html
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