centos (lvm) 扩容
描述: 17G 扩充到 30G代码:1. df -h[root@k8s-master test]# df -h文件系统容量已用可用 已用% 挂载点/dev/mapper/centos-root17G16G1.2G93% /devtmpfs1.9G01.9G0%...
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描述: 17G 扩充到 30G
代码:
1. df -h
[root@k8s-master test]# df -h
文件系统 容量 已用 可用 已用% 挂载点
/dev/mapper/centos-root 17G 16G 1.2G 93% /
devtmpfs 1.9G 0 1.9G 0% /dev
tmpfs 1.9G 0 1.9G 0% /dev/shm
tmpfs 1.9G 20M 1.9G 2% /run
tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup
/dev/sda1 1014M 177M 838M 18% /boot
overlay 17G 16G 1.2G 93% /var/lib/docker/overlay2/fa7262db9c9492000b5bc7d14d1ccdb11089b50a289ea1a8516804ef93ab97b1/merged
overlay 17G 16G 1.2G 93% /var/lib/docker/overlay2/dcd3422a1eed0c46abc26ee2063ecdc5623a6cbaff36130b32db43d013f192b0/merged
overlay 17G 16G 1.2G 93% /var/lib/docker/overlay2/cdb10799373218bcb0a1babd022b58db71e4f3aac385c6574312a0a4a512c932/merged
shm 64M 4.0K 64M 1% /var/lib/docker/containers/3169bb04e4f5676ec6c43ab3dfb2bf8e8bdfe11155bb9abe746de35b3a4288f8/mounts/shm
shm 64M 0 64M 0% /var/lib/docker/containers/cd65be734d193aabbf9cf102a9d845dd44733c0f3dcf007978dfe0f2991e7d57/mounts/shm
shm 64M 0 64M 0% /var/lib/docker/containers/a1bd44d56ec9e6bccf13025fa0c15b86efa23fae75fe96147f8e53f924983214/mounts/shm
tmpfs 378M 0 378M 0% /run/user/0
overlay 17G 16G 1.2G 93% /var/lib/docker/overlay2/5044a45c4531e5d867a42db17ebd5c8af668c5e24154ebde2495fcdcc6f91ba1/merged
shm 64M 0 64M 0% /var/lib/docker/containers/3f7e59e9e4a580dce85d69acc06a976a47ec67e2a266aed15167f3cdcefe3531/mounts/shm
overlay 17G 16G 1.2G 93% /var/lib/docker/overlay2/572ebc9871780f7943e8ec28d10bbfffe425dcac75a914ff4d43120b7033664c/merged
shm 64M 0 64M 0% /var/lib/docker/containers/2590e473b1d8a8ba96df6385268903fdc8441d24bd54a0f5cf748cd723845d0d/mounts/shm
overlay 17G 16G 1.2G 93% /var/lib/docker/overlay2/25da6c12e0ec29d72a647ca1041e311c247bc31b6d552f64e39face5441b044b/merged
shm 64M 0 64M 0% /var/lib/docker/containers/f4884c5afdc613aebcb982ae91bd1ad6774c5433f80b1adf706abcd9ebba0d6b/mounts/shm
2. fdisk /dev/sda
[root@k8s-master test]# fdisk /dev/sda
欢迎使用 fdisk (util-linux 2.23.2)。
更改将停留在内存中,直到您决定将更改写入磁盘。
使用写入命令前请三思。
命令(输入 m 获取帮助):n
Partition type:
p primary (2 primary, 0 extended, 2 free)
e extended
Select (default p): p
分区号 (3,4,默认 3):3
起始 扇区 (41943040-62914559,默认为 41943040):41943040^H^H^H^H
Last 扇区, +扇区 or +size{K,M,G} (41943040-62914559,默认为 62914559):
将使用默认值 62914559
分区 3 已设置为 Linux 类型,大小设为 10 GiB
命令(输入 m 获取帮助):t
分区号 (1-3,默认 3):
Hex 代码(输入 L 列出所有代码):
Hex 代码(输入 L 列出所有代码):L
0 空 24 NEC DOS 81 Minix / 旧 Linu bf Solaris
1 FAT12 27 隐藏的 NTFS Win 82 Linux 交换 / So c1 DRDOS/sec (FAT-
2 XENIX root 39 Plan 9 83 Linux c4 DRDOS/sec (FAT-
3 XENIX usr 3c PartitionMagic 84 OS/2 隐藏的 C: c6 DRDOS/sec (FAT-
4 FAT16 <32M 40 Venix 80286 85 Linux 扩展 c7 Syrinx
5 扩展 41 PPC PReP Boot 86 NTFS 卷集 da 非文件系统数据
6 FAT16 42 SFS 87 NTFS 卷集 db CP/M / CTOS / .
7 HPFS/NTFS/exFAT 4d QNX4.x 88 Linux 纯文本 de Dell 工具
8 AIX 4e QNX4.x 第2部分 8e Linux LVM df BootIt
9 AIX 可启动 4f QNX4.x 第3部分 93 Amoeba e1 DOS 访问
a OS/2 启动管理器 50 OnTrack DM 94 Amoeba BBT e3 DOS R/O
b W95 FAT32 51 OnTrack DM6 Aux 9f BSD/OS e4 SpeedStor
c W95 FAT32 (LBA) 52 CP/M a0 IBM Thinkpad 休 eb BeOS fs
e W95 FAT16 (LBA) 53 OnTrack DM6 Aux a5 FreeBSD ee GPT
f W95 扩展 (LBA) 54 OnTrackDM6 a6 OpenBSD ef EFI (FAT-12/16/
10 OPUS 55 EZ-Drive a7 NeXTSTEP f0 Linux/PA-RISC
11 隐藏的 FAT12 56 Golden Bow a8 Darwin UFS f1 SpeedStor
12 Compaq 诊断 5c Priam Edisk a9 NetBSD f4 SpeedStor
14 隐藏的 FAT16 <3 61 SpeedStor ab Darwin 启动 f2 DOS 次要
16 隐藏的 FAT16 63 GNU HURD or Sys af HFS / HFS+ fb VMware VMFS
17 隐藏的 HPFS/NTF 64 Novell Netware b7 BSDI fs fc VMware VMKCORE
18 AST 智能睡眠 65 Novell Netware b8 BSDI swap fd Linux raid 自动
1b 隐藏的 W95 FAT3 70 DiskSecure 多启 bb Boot Wizard 隐 fe LANstep
1c 隐藏的 W95 FAT3 75 PC/IX be Solaris 启动 ff BBT
1e 隐藏的 W95 FAT1 80 旧 Minix
Hex 代码(输入 L 列出所有代码):8e
已将分区“Linux”的类型更改为“Linux LVM”
命令(输入 m 获取帮助):p
磁盘 /dev/sda:32.2 GB, 32212254720 字节,62914560 个扇区
Units = 扇区 of 1 * 512 = 512 bytes
扇区大小(逻辑/物理):512 字节 / 512 字节
I/O 大小(最小/最佳):512 字节 / 512 字节
磁盘标签类型:dos
磁盘标识符:0x000b96d6
设备 Boot Start End Blocks Id System
/dev/sda1 * 2048 2099199 1048576 83 Linux
/dev/sda2 2099200 41943039 19921920 8e Linux LVM
/dev/sda3 41943040 62914559 10485760 8e Linux LVM
命令(输入 m 获取帮助):w
The partition table has been altered!
Calling ioctl() to re-read partition table.
WARNING: Re-reading the partition table failed with error 16: 设备或资源忙.
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)
正在同步磁盘。
3. df -T /dev/sda1
[root@k8s-master test]# df -T /dev/sda1
文件系统 类型 1K-块 已用 可用 已用% 挂载点
/dev/sda1 xfs 1038336 180268 858068 18% /boot
[root@k8s-master test]# mkfs.xfs /dev/sda3
/dev/sda3: 没有那个文件或目录
Usage: mkfs.xfs
/* blocksize */ [-b log=n|size=num]
/* metadata */ [-m crc=0|1,finobt=0|1,uuid=xxx]
/* data subvol */ [-d agcount=n,agsize=n,file,name=xxx,size=num,
(sunit=value,swidth=value|su=num,sw=num|noalign),
sectlog=n|sectsize=num
/* force overwrite */ [-f]
/* inode size */ [-i log=n|perblock=n|size=num,maxpct=n,attr=0|1|2,
projid32bit=0|1]
/* no discard */ [-K]
/* log subvol */ [-l agnum=n,internal,size=num,logdev=xxx,version=n
sunit=value|su=num,sectlog=n|sectsize=num,
lazy-count=0|1]
/* label */ [-L label (maximum 12 characters)]
/* naming */ [-n log=n|size=num,version=2|ci,ftype=0|1]
/* no-op info only */ [-N]
/* prototype file */ [-p fname]
/* quiet */ [-q]
/* realtime subvol */ [-r extsize=num,size=num,rtdev=xxx]
/* sectorsize */ [-s log=n|size=num]
/* version */ [-V]
devicename
<devicename> is required unless -d name=xxx is given.
<num> is xxx (bytes), xxxs (sectors), xxxb (fs blocks), xxxk (xxx KiB),
xxxm (xxx MiB), xxxg (xxx GiB), xxxt (xxx TiB) or xxxp (xxx PiB).
<value> is xxx (512 byte blocks).
[root@k8s-master test]# df -T /dev/sda3
df: "/dev/sda3": 没有那个文件或目录
[root@k8s-master test]# df -T /dev/sda2
文件系统 类型 1K-块 已用 可用 已用% 挂载点
devtmpfs devtmpfs 1918732 0 1918732 0% /dev
[root@k8s-master test]# reboot
Last login: Sat Dec 21 14:18:46 2019
[root@k8s-master ~]# df -T /dev/sda3
文件系统 类型 1K-块 已用 可用 已用% 挂载点
devtmpfs devtmpfs 1918728 0 1918728 0% /dev
[root@k8s-master ~]# df -T /dev/sda2
文件系统 类型 1K-块 已用 可用 已用% 挂载点
devtmpfs devtmpfs 1918728 0 1918728 0% /dev
4. mkfs.xfs /dev/sda3
[root@k8s-master ~]# mkfs.xfs /dev/sda3
meta-data=/dev/sda3 isize=512 agcount=4, agsize=655360 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=0, sparse=0
data = bsize=4096 blocks=2621440, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=1
log =internal log bsize=4096 blocks=2560, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
[root@k8s-master ~]# df -T /dev/sda3
文件系统 类型 1K-块 已用 可用 已用% 挂载点
devtmpfs devtmpfs 1918728 0 1918728 0% /dev
[root@k8s-master ~]# df -T /dev/sda1
文件系统 类型 1K-块 已用 可用 已用% 挂载点
/dev/sda1 xfs 1038336 180268 858068 18% /boot
5. pvcreate /dev/sda3
[root@k8s-master ~]# pvcreate /dev/sda3
WARNING: xfs signature detected on /dev/sda3 at offset 0. Wipe it? [y/n]: y
Wiping xfs signature on /dev/sda3.
Physical volume "/dev/sda3" successfully created.
[root@k8s-master ~]# pvdisplay
--- Physical volume ---
PV Name /dev/sda2
VG Name centos
PV Size <19.00 GiB / not usable 3.00 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 4863
Free PE 0
Allocated PE 4863
PV UUID XJkHLv-d8Zs-uEGQ-cAXp-67Yj-0Nf5-ZjnKcY
"/dev/sda3" is a new physical volume of "10.00 GiB"
--- NEW Physical volume ---
PV Name /dev/sda3
VG Name
PV Size 10.00 GiB
Allocatable NO
PE Size 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID xnskSP-Vbjo-7OIz-V6hz-WRQd-J3qo-uMeTv2
6. vgextend centos /dev/sda3
[root@k8s-master ~]# vgdisplay
--- Volume group ---
VG Name centos
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 1
Max PV 0
Cur PV 1
Act PV 1
VG Size <19.00 GiB
PE Size 4.00 MiB
Total PE 4863
Alloc PE / Size 4863 / <19.00 GiB
Free PE / Size 0 / 0
VG UUID c6W3yP-XGmu-md4W-DHFq-9eVz-BVs1-Wh7tbB
[root@k8s-master ~]# vgextend centos /dev/sda3
Volume group "centos" successfully extended
[root@k8s-master ~]# vgdisplay
--- Volume group ---
VG Name centos
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 1
Max PV 0
Cur PV 2
Act PV 2
VG Size 28.99 GiB
PE Size 4.00 MiB
Total PE 7422
Alloc PE / Size 4863 / <19.00 GiB
Free PE / Size 2559 / <10.00 GiB
VG UUID c6W3yP-XGmu-md4W-DHFq-9eVz-BVs1-Wh7tbB
7. lvextend /dev/centos/root /dev/sda3
[root@k8s-master ~]# lvdisplay
--- Logical volume ---
LV Path /dev/centos/swap
LV Name swap
VG Name centos
LV UUID trolaW-Z94e-5hxf-QzXS-a49B-fmoZ-Kin4Ac
LV Write Access read/write
LV Creation host, time localhost, 2019-07-30 19:54:38 +0800
LV Status available
# open 0
LV Size 2.00 GiB
Current LE 512
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 8192
Block device 253:1
--- Logical volume ---
LV Path /dev/centos/root
LV Name root
VG Name centos
LV UUID 2lwKo1-cl3H-Xszz-jGLw-crqu-A7JQ-ACllX3
LV Write Access read/write
LV Creation host, time localhost, 2019-07-30 19:54:38 +0800
LV Status available
# open 1
LV Size <17.00 GiB
Current LE 4351
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 8192
Block device 253:0
[root@k8s-master ~]# lvextend /dev/centos/root /dev/sda3
Size of logical volume centos/root changed from <17.00 GiB (4351 extents) to 26.99 GiB (6910 extents).
Logical volume centos/root successfully resized.
[root@k8s-master ~]# xfs_growfs /dev/centos/root
meta-data=/dev/mapper/centos-root isize=512 agcount=4, agsize=1113856 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=0 spinodes=0
data = bsize=4096 blocks=4455424, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=1
log =internal bsize=4096 blocks=2560, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
data blocks changed from 4455424 to 7075840
[root@k8s-master ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
/dev/mapper/centos-root 27G 16G 12G 59% /
devtmpfs 1.9G 0 1.9G 0% /dev
tmpfs 1.9G 0 1.9G 0% /dev/shm
tmpfs 1.9G 12M 1.9G 1% /run
tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup
/dev/sda1 1014M 177M 838M 18% /boot
overlay 27G 16G 12G 59% /var/lib/docker/overlay2/fa7262db9c9492000b5bc7d14d1ccdb11089b50a289ea1a8516804ef93ab97b1/merged
overlay 27G 16G 12G 59% /var/lib/docker/overlay2/dcd3422a1eed0c46abc26ee2063ecdc5623a6cbaff36130b32db43d013f192b0/merged
shm 64M 0 64M 0% /var/lib/docker/containers/a1bd44d56ec9e6bccf13025fa0c15b86efa23fae75fe96147f8e53f924983214/mounts/shm
shm 64M 0 64M 0% /var/lib/docker/containers/cd65be734d193aabbf9cf102a9d845dd44733c0f3dcf007978dfe0f2991e7d57/mounts/shm
tmpfs 378M 0 378M 0% /run/user/0
overlay 27G 16G 12G 59% /var/lib/docker/overlay2/572ebc9871780f7943e8ec28d10bbfffe425dcac75a914ff4d43120b7033664c/merged
shm 64M 0 64M 0% /var/lib/docker/containers/2590e473b1d8a8ba96df6385268903fdc8441d24bd54a0f5cf748cd723845d0d/mounts/shm
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