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本篇內(nèi)容介紹了“l(fā)inux 系統(tǒng) VPS 擴(kuò)展硬盤的方法是什么”的有關(guān)知識(shí)，在實(shí)際案例的操作過(guò)程中，不少人都會(huì)遇到這樣的困境，接下來(lái)就讓丸趣 TV 小編帶領(lǐng)大家學(xué)習(xí)一下如何處理這些情況吧！希望大家仔細(xì)閱讀，能夠?qū)W有所成！
[root@cloud ~]# df -hal 查看擴(kuò)容后磁盤情況。
文件系統(tǒng) 容量 已用 可用 已用 %% 掛載點(diǎn)
/dev/mapper/vg_cloud-lv_root
7.5G 7.5G 0 100% /
proc 0 0 0 – /proc
sysfs 0 0 0 – /sys
devpts 0 0 0 – /dev/pts
tmpfs 494M 0 494M 0% /dev/shm
/dev/sda1 485M 33M 427M 8% /boot
none 0 0 0 – /proc/sys/fs/binfmt_misc
sunrpc 0 0 0 – /var/lib/nfs/rpc_pipefs
[root@cloud wwwroot]# fdisk - l 查看分區(qū)情況。這里看到 /dev/sdc 為剛才加上的沒(méi)有分區(qū)的盤。
Disk /dev/sda: 10.7 GB, 10737418240 bytes
255 heads, 63 sectors/track, 1305 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00051f5f
Device Boot Start End Blocks Id System
/dev/sda1 * 1 64 512000 83 Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2 64 1306 9972736 8e Linux LVM
Disk /dev/sdb: 53.7 GB, 53687091200 bytes
255 heads, 63 sectors/track, 6527 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/mapper/vg_cloud-lv_root: 8128 MB, 8128561152 bytes
255 heads, 63 sectors/track, 988 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/mapper/vg_cloud-lv_swap: 2080 MB, 2080374784 bytes
255 heads, 63 sectors/track, 252 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
[root@cloud ~]# fdisk /dev/sdb 進(jìn)行分區(qū)。fdisk 進(jìn)行硬盤分區(qū)從實(shí)質(zhì)上說(shuō)就是對(duì)硬盤的一種格式化。
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklable
Building a new DOS disklabel with disk identifier 0x3c59d1a9.
Changes will remain in memory only, until you decide to write them.
After that, of course, the previous content won t be recoverable.
Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)
WARNING: DOS-compatible mode is deprecated. It s strongly recommended to
switch off the mode (command c) and change display units to
sectors (command u).
Command (m for help): n #新建分區(qū)
Command action
e extended
p primary partition (1-4)
p #設(shè)置為主分區(qū)
Partition number (1-4): 1 #主分區(qū)號(hào)
First cylinder (1-2610, default 1):1 #開(kāi)始扇區(qū)（直接默認(rèn)回車）
Using default value 1
Last cylinder, +cylinders or +size{K,M,G} (1-2610, default 2610):2610
Using default value 2610 #結(jié)束扇區(qū)（直接默認(rèn)回車）
Command (m for help): t #指定分區(qū)類型
Selected partition 1 #選擇 1 號(hào)分區(qū)
Hex code (type L to list codes): 8e #8e 為 LVM
Changed system type of partition 1 to 8e (Linux LVM)
Command (m for help): w #保存
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
[root@cloud ~]# reboot
======================================================
重啟中
======================================================
[root@cloud ~]# vgs
VG #PV #LV #SN Attr VSize VFree
vg_cloud 1 2 0 wz–n- 9.51g 0
[root@cloud ~]# pvcreate /dev/sdb1
Physical volume /dev/sdb1 successfully created
[root@cloud ~]# vgextend vg_cloud /dev/sdb1
Volume group vg_cloud successfully extended
[root@cloud ~]# vgdisplay
— Volume group —
VG Name vg_cloud
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 59.50 GiB
PE Size 4.00 MiB
Total PE 15233
Alloc PE / Size 2434 / 9.51 GiB
Free PE / Size 12799 / 50.00 GiB
VG UUID I5k6GO-mjni-7dO0-O4TF-RUxH-RNcI-bnWFY3
[root@cloud ~]# lvresize -L +49.900G /dev/vg_cloud/lv_root
Rounding size to boundary between physical extents: 49.90 GiB
Extending logical volume lv_root to 57.47 GiB
Logical volume lv_root successfully resized
[root@cloud ~]# resize2fs /dev/vg_cloud/lv_root
resize2fs 1.41.12 (17-May-2010)
Filesystem at /dev/vg_cloud/lv_root is mounted on /; on-line resizing required
old desc_blocks = 1, new_desc_blocks = 4
Performing an on-line resize of /dev/vg_cloud/lv_root to 15066112 (4k) blocks.
The filesystem on /dev/vg_cloud/lv_root is now 15066112 blocks long.
[root@cloud ~]# df -hal
文件系統(tǒng) 容量 已用 可用 已用 %% 掛載點(diǎn)
/dev/mapper/vg_cloud-lv_root
57G 7.5G 47G 14% /
proc 0 0 0 – /proc
sysfs 0 0 0 – /sys
devpts 0 0 0 – /dev/pts
tmpfs 494M 0 494M 0% /dev/shm
/dev/sda1 485M 33M 427M 8% /boot
none 0 0 0 – /proc/sys/fs/binfmt_misc
sunrpc 0 0 0 – /var/lib/nfs/rpc_pipefs
======================================================
擴(kuò)展成功
======================================================
“l(fā)inux 系統(tǒng) VPS 擴(kuò)展硬盤的方法是什么”的內(nèi)容就介紹到這里了，感謝大家的閱讀。如果想了解更多行業(yè)相關(guān)的知識(shí)可以關(guān)注丸趣 TV 網(wǎng)站，丸趣 TV 小編將為大家輸出更多高質(zhì)量的實(shí)用文章！
