EVE-NG硬盘扩容，存储海量镜像

EVE-NG硬盘扩容，存储海量镜像

来源 http://blog.51cto.com/sms1107/1928453

一、查看当前磁盘使用情况

/dev/mapper/eve--ng--vg-root，所以我们只要把这个LV容量扩大即可

二、给EVE-NG硬盘扩大容量，对于EVE-NG来说，相当于加大物理磁盘容量

把EVE-NG关机后编辑EVE-NG虚拟机

注意：无法扩展具有快照的虚拟机中的磁盘，必须删除快照。

点击扩展

填写磁盘大小，点扩展

等待完成扩展

三、EVE-NG系统层面增大VG容量

1、加电开机EVE-NG，确认硬盘容量为500G

root@eve-ng:~# fdisk -l

……

……

……

Disk /dev/sda: 500 GiB, 536870912000 bytes, 1048576000 sectors

Units: sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disklabel type: dos

Disk identifier: 0x6d98196e

Device     Boot   Start      End  Sectors  Size Id Type（硬盘分区情况）

/dev/sda1  *       2048   999423   997376  487M 83 Linux

/dev/sda2       1001470  61911042 29.5G  5 Extended （sda2的end sector值，该数值 +1即是sda3的start sector）

/dev/sda5       1001472 62912511 61911040 29.5G 8e Linux LVM

Disk /dev/mapper/eve--ng--vg-root: 23.5 GiB, 25253904384 bytes, 49324032 sectors

Units: sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/mapper/eve--ng--vg-swap_1: 6 GiB, 6442450944 bytes, 12582912 sectors

Units: sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

root@eve-ng:~#

2、给硬盘sda分区

root@eve-ng:~# fdisk /dev/sda

Welcome to fdisk (util-linux 2.27.1).

Changes will remain in memory only, until you decide to write them.

Be careful before using the write command.

Command (m for help): n

Partition type

p   primary (1 primary, 1 extended, 2 free)

l   logical (numbered from 5)

Select (default p): p

Partition number (3,4, default 3):

First sector (999424-1048575999, default 999424): 62912512

#（sda3的start sector，该值是sda2的end sector值 +1）

Last sector, +sectors or +size{K,M,G,T,P} (62912512-1048575999, default 1048575999):

Created a new partition 3 of type 'Linux' and of size 470 GiB.

Command (m for help): p

Disk /dev/sda: 500 GiB, 536870912000 bytes, 1048576000 sectors

Units: sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disklabel type: dos

Disk identifier: 0x6d98196e

Device     Boot    Start        End   Sectors  Size Id Type

/dev/sda1  *        2048     999423    997376  487M 83 Linux

/dev/sda2        1001470   62912511  61911042 29.5G  5 Extended

/dev/sda3       62912512 1048575999 985663488  470G 83 Linux

/dev/sda5        1001472   62912511  61911040 29.5G 8e Linux LVM

Partition table entries are not in disk order.

Command (m for help): w

The partition table has been altered.

Calling ioctl() to re-read partition table.

Re-reading the partition table failed.: Device or resource busy

The kernel still uses the old table. The new table will be used at the next reboot or after you run partprobe(8) or kpartx(8).

root@eve-ng:~# reboot （重启，使分区生效）

3、将sda3加入到VG中

查看VG的名字

root@eve-ng:~# vgdisplay

--- Volume group ---

VG Name               eve-ng-vg

System ID

Format                lvm2

Metadata Areas        1

Metadata Sequence No  3

VG Access             read/write

VG Status             resizable

MAX LV                0

Cur LV                2

Open LV               2

Max PV                0

Cur PV                1

Act PV                1

VG Size               29.52 GiB

PE Size               4.00 MiB

Total PE              7557

Alloc PE / Size       7557 / 29.52 GiB

Free  PE / Size       0 / 0

VG UUID               9MuCtK-vJSR-Y2aw-iIPi-lQa3-0onn-m5uNbv

将sda3加入到eve-ng-vg这个VG中

root@eve-ng:~# vgextend eve-ng-vg /dev/sda3

Physical volume "/dev/sda3" successfully created

Volume group "eve-ng-vg" successfully extended

root@eve-ng:~# vgdisplay

--- Volume group ---

VG Name               eve-ng-vg

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               499.52 GiB

PE Size               4.00 MiB

Total PE              127877

Alloc PE / Size       7557 / 29.52 GiB

Free  PE / Size       120320 / 470.00 GiB

VG UUID               9MuCtK-vJSR-Y2aw-iIPi-lQa3-0onn-m5uNbv

4、扩容LV

查看LV路径

root@eve-ng:~# lvdisplay

--- Logical volume ---

LV Path                /dev/eve-ng-vg/root

LV Name                root

VG Name                eve-ng-vg

LV UUID                0wyDXu-602J-HQ0N-T1Ue-J5si-EFFY-vKO1tX

LV Write Access        read/write

LV Creation host, time eve-ng, 2017-03-18 22:23:02 +0200

LV Status              available

# open                 1

LV Size                23.52 GiB

Current LE             6021

Segments               1

Allocation             inherit

Read ahead sectors     auto

- currently set to     256

Block device           252:0

--- Logical volume ---

LV Path                /dev/eve-ng-vg/swap_1

LV Name                swap_1

VG Name                eve-ng-vg

LV UUID                umXPMX-3BGd-2TR6-Msjn-zp05-GLvx-ReOHx6

LV Write Access        read/write

LV Creation host, time eve-ng, 2017-03-18 22:23:02 +0200

LV Status              available

# open                 2

LV Size                6.00 GiB

Current LE             1536

Segments               1

Allocation             inherit

Read ahead sectors     auto

- currently set to     256

Block device           252:1

将剩余容量扩容到/dev/eve-ng-vg/root路径下

root@eve-ng:~# lvextend -l +100%FREE /dev/eve-ng-vg/root

Size of logical volume eve-ng-vg/root changed from 23.52 GiB (6021 extents) to 493.52 GiB (126341 extents).

Logical volume root successfully resized.

root@eve-ng:~# lvdisplay

--- Logical volume ---

LV Path                /dev/eve-ng-vg/root

LV Name                root

VG Name                eve-ng-vg

LV UUID                0wyDXu-602J-HQ0N-T1Ue-J5si-EFFY-vKO1tX

LV Write Access        read/write

LV Creation host, time eve-ng, 2017-03-18 22:23:02 +0200

LV Status              available

# open                 1

LV Size                493.52 GiB

Current LE             126341

Segments               2

Allocation             inherit

Read ahead sectors     auto

- currently set to     256

Block device           252:0

--- Logical volume ---

LV Path                /dev/eve-ng-vg/swap_1

LV Name                swap_1

VG Name                eve-ng-vg

LV UUID                umXPMX-3BGd-2TR6-Msjn-zp05-GLvx-ReOHx6

LV Write Access        read/write

LV Creation host, time eve-ng, 2017-03-18 22:23:02 +0200

LV Status              available

# open                 2

LV Size                6.00 GiB

Current LE             1536

Segments               1

Allocation             inherit

Read ahead sectors     auto

- currently set to     256

Block device           252:1

重新定义文件系统大小

root@eve-ng:~# resize2fs /dev/eve-ng-vg/root

resize2fs 1.42.13 (17-May-2015)

Filesystem at /dev/eve-ng-vg/root is mounted on /; on-line resizing required

old_desc_blocks = 2, new_desc_blocks = 31

The filesystem on /dev/eve-ng-vg/root is now 129373184 (4k) blocks long.

5、查看磁盘使用情况

root@eve-ng:~# df -h

Filesystem                    Size  Used Avail Use% Mounted on

udev                          2.9G     0  2.9G   0% /dev

tmpfs                         597M   14M  584M   3% /run

/dev/mapper/eve--ng--vg-root  486G  6.1G  460G   2% /

tmpfs                         3.0G     0  3.0G   0% /dev/shm

tmpfs                         5.0M     0  5.0M   0% /run/lock

tmpfs                         3.0G     0  3.0G   0% /sys/fs/cgroup

/dev/sda1                     472M  105M  343M  24% /boot

root@eve-ng:~#

好啦，扩容完成！各位，随意上传镜像吧，镜像再多也不怕！

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