7.EVE-NG硬盘扩容，存储海量镜像

1、EVE-NG介绍（EVE-NG最好用的模拟器，仿真环境时代来临！）

2、EVE-NG安装过程介绍

3、EVE-NG导入Dynamips和IOL

4、EVE-NG导入QEMU镜像

5、EVE-NG关联SecureCRT，VNC，Wireshark

6、EVE-NG网卡桥接，带您走进更高级的实验

7、EVE-NG硬盘扩容，存储海量镜像

8、EVE-NG定制个人镜像，脚本快速导入

9、EVE-NG容纳H3C、Huawei，吞并GNS3

10、EVE-NG镜像来啦！打造国内最大的EVE交流圈

11、EVE-NG镜像再次来袭，无所不能！

12、EVE-NG镜像增持，走上神坛！

13、EVE-NG内存不够？教您扩大虚拟内存！

14、EVE-NG更新方便，不费劲儿！

15、EVE-NG小众镜像，助力尝鲜！

16、EVE-NG体验Seafile，抛弃10K/s网盘

17、......

点击查看配套视频教程！

EVE-NG硬盘扩容，存储海量镜像

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

[email protected]:~# 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 62912511 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

[email protected]:~#

2、给硬盘sda分区

[email protected]:~# 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): 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):

# 由于sda1与sda2中间的一些sector没有使用，所以First sector提示的default是999424

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).

[email protected]:~# reboot （重启，使分区生效）

3、将sda3加入到VG中

查看VG的名字

[email protected]:~# 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

[email protected]:~# vgextend eve-ng-vg /dev/sda3

Physical volume "/dev/sda3"
successfully created

Volume group "eve-ng-vg"
successfully extended

[email protected]:~#
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

[email protected]:~# 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

[email protected]:~# 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.

[email protected]:~#
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

[email protected]:~# 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

[email protected]:~# 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

[email protected]:~#

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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