1、虚拟化平台虚拟机添加硬盘 系统查看添加的硬盘 [root@yumserver ~] # lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 50G 0 disk ├─
1、虚拟化平台虚拟机添加硬盘
系统查看添加的硬盘
[root@yumserver ~]
# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 50G 0 disk
├─sda1 8:1 0 1G 0 part
/boot
└─sda2 8:2 0 49G 0 part
├─centos-root 253:0 0 44G 0 lvm /
└─centos-swap 253:1 0 5G 0 lvm [SWAP]
sr0 11:0 1 4.4G 0 rom
如果没有显示出来新加的硬盘,则执行下面命令
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echo
"- - -"
>
/sys/class/scsi_host/host0/scan
echo
"- - -"
>
/sys/class/scsi_host/host1/scan
echo
"- - -"
>
/sys/class/scsi_host/host2/scan
再次查询,发现新添加的sdb已经可以看到了。
[root@yumserver ~]
# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 50G 0 disk
├─sda1 8:1 0 1G 0 part
/boot
└─sda2 8:2 0 49G 0 part
├─centos-root 253:0 0 44G 0 lvm /
└─centos-swap 253:1 0 5G 0 lvm [SWAP]
sdb 8:16 0 50G 0 disk
sr0 11:0 1 4.4G 0 rom
2、parted将sdb分区
[root@yumserver ~]
# parted /dev/sdb
GNU Parted 3.1
使用
/dev/sdb
Welcome to GNU Parted! Type
'help'
to view a list of commands.
(parted) mklabel gpt
(parted) mkpart primary 0% 100%
(parted) p
Model: VMware Virtual disk (scsi)
Disk
/dev/sdb
: 53.7GB
Sector size (logical
/physical
): 512B
/512B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name 标志
1 1049kB 53.7GB 53.7GB primary
(parted) q
信息: You may need to update
/etc/fstab
.
[root@yumserver ~]
#
再次查看,发现主分区sdb1出现了
[root@yumserver ~]
# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 50G 0 disk
├─sda1 8:1 0 500M 0 part
/boot
└─sda2 8:2 0 49.5G 0 part
├─centos-root 253:0 0 47.5G 0 lvm /
└─centos-swap 253:1 0 2G 0 lvm [SWAP]
sdb 8:16 0 50G 0 disk
└─sdb1 8:17 0 50G 0 part
sr0 11:0 1 1024M 0 rom
[root@yumserver ~]
#
3 、查看现有vg,lv,确定扩容
[root@yumserver ~]
# pvs
PV VG Fmt Attr PSize PFree
/dev/sda2
centos lvm2 a-- <49.51g 0
[root@yumserver ~]
# vgs
VG
#PV #LV #SN Attr VSize VFree
centos 1 2 0 wz--n- <49.51g 0
[root@yumserver ~]
# lvs
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
root centos -wi-ao---- <47.51g
swap centos -wi-ao---- 2.00g
[root@yumserver ~]
#
4、分别创建pv,扩容vg,扩容lv,扩容文件系统
##此处发现不能tab补全命令, yum install -y bash-completion
[root@yumserver ~]
# pvcreate /dev/sdb1
Physical volume
"/dev/sdb1"
successfully created.
[root@yumserver ~]
# vgextend centos /dev/sdb1
Volume group
"centos"
successfully extended
[root@yumserver ~]
# lvextend /dev/centos/root -l +100%FREE
Size of logical volume centos
/root
changed from <47.51 GiB (12162 extents) to 97.50 GiB (24961 extents).
Logical volume centos
/root
successfully resized.
查看文件系统
[root@yumserver ~]
# df -Th
xfs 类型,使用 xfs_growfs,此处为xfs
[root@yumserver ~]
# xfs_growfs /dev/centos/root
ext 类型,使用 resize2fs
[root@yumserver ~]
# resize2fs /dev/centos/root
再次查看,/目录扩容成功
[root@yumserver ~]
# df -h
文件系统 容量 已用 可用 已用% 挂载点
devtmpfs 3.9G 0 3.9G 0%
/dev
tmpfs 3.9G 0 3.9G 0%
/dev/shm
tmpfs 3.9G 8.9M 3.9G 1%
/run
tmpfs 3.9G 0 3.9G 0%
/sys/fs/cgroup
/dev/mapper/centos-root
98G 1.4G 97G 2% /
/dev/sda1
497M 143M 354M 29%
/boot
tmpfs 783M 0 783M 0%
/run/user/0
转载:http://blog.itpub.net/70004783/viewspace-2790155/
原文链接:https://www.cnblogs.com/it-log/p/17288877.html
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