我们经常遇到某个挂接目录磁盘空间不足问题，这时需要扩容。
推荐的方式是：增加1个新磁盘加入到原vg当中即可。
而直接在原盘扩容大小(应该是可以直接resize的)，所以这时需要通过fdisk增加新主分区，然后再创建成pv，加入到vg中。（如下操作就是模拟处理这种情况）
思路：1.增加磁盘主分区fdisk /dev/sda（不能做成扩展分区）
2.创建pv,extend vg,extend lv,扩文件系统（参考https://www.modb.pro/db/397198）
目标结果：
扩容前：
扩容后：
操作记录如下：
Last login: Wed Jan 4 10:18:59 2023 from 10.168.20.66
[root@mysql1 ~]# cat /etc/redhat-release
CentOS Linux release 7.9.2009 (Core)
[root@mysql1 ~]# fdisk -l
Disk /dev/sda: 34.4 GB, 34359738368 bytes, 67108864 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 label type: dos
Disk identifier: 0x000c2fc4
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 2099199 1048576 83 Linux
/dev/sda2 2099200 67108863 32504832 8e Linux LVM
Disk /dev/mapper/centos-root: 29.8 GB, 29842472960 bytes, 58286080 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/centos-swap: 3435 MB, 3435134976 bytes, 6709248 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@mysql1 ~]# fdisk /dev/sda
Welcome to fdisk (util-linux 2.23.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Command (m for help): p
Disk /dev/sda: 34.4 GB, 34359738368 bytes, 67108864 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 label type: dos
Disk identifier: 0x000c2fc4
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 2099199 1048576 83 Linux
/dev/sda2 2099200 67108863 32504832 8e Linux LVM
Command (m for help): ^C
[root@mysql1 ~]# fdisk -l
Disk /dev/sda: 35.4 GB, 35433480192 bytes, 69206016 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 label type: dos
Disk identifier: 0x000c2fc4
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 2099199 1048576 83 Linux
/dev/sda2 2099200 67108863 32504832 8e Linux LVM
Disk /dev/mapper/centos-root: 29.8 GB, 29842472960 bytes, 58286080 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/centos-swap: 3435 MB, 3435134976 bytes, 6709248 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@mysql1 ~]# fdisk /dev/sda
Welcome to fdisk (util-linux 2.23.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Command (m for help): p
Disk /dev/sda: 35.4 GB, 35433480192 bytes, 69206016 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 label type: dos
Disk identifier: 0x000c2fc4
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 2099199 1048576 83 Linux
/dev/sda2 2099200 67108863 32504832 8e Linux LVM
Command (m for help): m
Command action
a toggle a bootable flag
b edit bsd disklabel
c toggle the dos compatibility flag
d delete a partition
g create a new empty GPT partition table
G create an IRIX (SGI) partition table
l list known partition types
m print this menu
n add a new partition
o create a new empty DOS partition table
p print the partition table
q quit without saving changes
s create a new empty Sun disklabel
t change a partition's system id
u change display/entry units
v verify the partition table
w write table to disk and exit
x extra functionality (experts only)
Command (m for help): n
Partition type:
p primary (2 primary, 0 extended, 2 free)
e extended
Select (default p): e
Partition number (3,4, default 3):
First sector (67108864-69206015, default 67108864):
Using default value 67108864
Last sector, +sectors or +size{K,M,G} (67108864-69206015, default 69206015):
Using default value 69206015
Partition 3 of type Extended and of size 1 GiB is set
Command (m for help): p
Disk /dev/sda: 35.4 GB, 35433480192 bytes, 69206016 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 label type: dos
Disk identifier: 0x000c2fc4
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 2099199 1048576 83 Linux
/dev/sda2 2099200 67108863 32504832 8e Linux LVM
/dev/sda3 67108864 69206015 1048576 5 Extended
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
WARNING: Re-reading the partition table failed with error 16: 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)
Syncing disks.
[root@mysql1 ~]# fdisk /dev/sda
Welcome to fdisk (util-linux 2.23.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Command (m for help): p
Disk /dev/sda: 35.4 GB, 35433480192 bytes, 69206016 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 label type: dos
Disk identifier: 0x000c2fc4
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 2099199 1048576 83 Linux
/dev/sda2 2099200 67108863 32504832 8e Linux LVM
/dev/sda3 67108864 69206015 1048576 5 Extended
Command (m for help): ^C
[root@mysql1 ~]# df -h
Filesystem Size Used Avail Use% Mounted on
devtmpfs 1.9G 0 1.9G 0% /dev
tmpfs 1.9G 0 1.9G 0% /dev/shm
tmpfs 1.9G 8.6M 1.9G 1% /run
tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup
/dev/mapper/centos-root 28G 4.8G 24G 18% /
/dev/sda1 1014M 150M 865M 15% /boot
tmpfs 379M 0 379M 0% /run/user/0
[root@mysql1 ~]# vgs
VG #PV #LV #SN Attr VSize VFree
centos 1 2 0 wz--n- <31.00g 4.00m
[root@mysql1 ~]# lvs
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
root centos -wi-ao---- 27.79g
swap centos -wi-ao---- <3.20g
[root@mysql1 ~]# df -hT /
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/centos-root xfs 28G 4.8G 24G 18% /
[root@mysql1 ~]#
[root@mysql1 ~]# pvcreate /dev/sda3
Device /dev/sda3 not found.
[root@mysql1 ~]# partprobe
Warning: Unable to open /dev/sr0 read-write (Read-only file system). /dev/sr0 has been opened read-only.
[root@mysql1 ~]# pvcreate /dev/sda3
Device /dev/sda3 excluded by a filter.
[root@mysql1 ~]# pvcreate /dev/sda3
Device /dev/sda3 excluded by a filter.
[root@mysql1 ~]# parted /dev/sda3
GNU Parted 3.1
Using /dev/sda3
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) help
align-check TYPE N check partition N for TYPE(min|opt) alignment
help [COMMAND] print general help, or help on COMMAND
mklabel,mktable LABEL-TYPE create a new disklabel (partition table)
mkpart PART-TYPE [FS-TYPE] START END make a partition
name NUMBER NAME name partition NUMBER as NAME
print [devices|free|list,all|NUMBER] display the partition table, available devices, free space, all found partitions, or a particular partition
quit exit program
rescue START END rescue a lost partition near START and END
resizepart NUMBER END resize partition NUMBER
rm NUMBER delete partition NUMBER
select DEVICE choose the device to edit
disk_set FLAG STATE change the FLAG on selected device
disk_toggle [FLAG] toggle the state of FLAG on selected device
set NUMBER FLAG STATE change the FLAG on partition NUMBER
toggle [NUMBER [FLAG]] toggle the state of FLAG on partition NUMBER
unit UNIT set the default unit to UNIT
version display the version number and copyright information of GNU Parted
(parted) mklabel
New disk label type?
New disk label type? y
parted: invalid token: y
New disk label type? sda3
parted: invalid token: sda3
New disk label type? yes
parted: invalid token: yes
New disk label type? help mktable
parted: invalid token: help
New disk label type? help
parted: invalid token: help
New disk label type? help mklable
parted: invalid token: help
New disk label type? help mklabel
parted: invalid token: help
New disk label type? msdos
Warning: The existing disk label on /dev/sda3 will be destroyed and all data on this disk will be lost. Do you want to continue?
Yes/No? yes
Error: Partition(s) 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36,
37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64 on /dev/sda3 have been written, but we have
been unable to inform the kernel of the change, probably because it/they are in use. As a result, the old partition(s) will remain in use. You should
reboot now before making further changes.
Ignore/Cancel? Cancel
(parted) quit
[root@mysql1 ~]# reboot
重启并不好使，原因是需要创建主分区而不是扩展分区。
Last login: Thu Jan 5 16:17:35 2023 from 10.168.20.66
[root@mysql1 ~]# fdisk -l
Disk /dev/sda: 35.4 GB, 35433480192 bytes, 69206016 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 label type: dos
Disk identifier: 0x000c2fc4
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 2099199 1048576 83 Linux
/dev/sda2 2099200 67108863 32504832 8e Linux LVM
/dev/sda3 67108864 69206015 1048576 5 Extended
Disk /dev/mapper/centos-root: 29.8 GB, 29842472960 bytes, 58286080 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/centos-swap: 3435 MB, 3435134976 bytes, 6709248 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@mysql1 ~]# pvcreate /dev/sda3
Device /dev/sda3 excluded by a filter.
[root@mysql1 ~]# fdisk /dev/sda3
You must set cylinders.
You can do this from the extra functions menu.
Welcome to fdisk (util-linux 2.23.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Command (m for help): p
Disk /dev/sda3: 0 MB, 1024 bytes, 2 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 label type: dos
Disk identifier: 0x000967c6
Device Boot Start End Blocks Id System
Command (m for help): ^C
[root@mysql1 ~]# fdisk /dev/sda2
Welcome to fdisk (util-linux 2.23.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Device does not contain a recognized partition table
Building a new DOS disklabel with disk identifier 0xe76720f1.
Command (m for help): p
Disk /dev/sda2: 33.3 GB, 33284947968 bytes, 65009664 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 label type: dos
Disk identifier: 0xe76720f1
Device Boot Start End Blocks Id System
Command (m for help): ^C
[root@mysql1 ~]# fdisk /dev/sda1
Welcome to fdisk (util-linux 2.23.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Device does not contain a recognized partition table
Building a new DOS disklabel with disk identifier 0xd8a8d25a.
Command (m for help): p
Disk /dev/sda1: 1073 MB, 1073741824 bytes, 2097152 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 label type: dos
Disk identifier: 0xd8a8d25a
Device Boot Start End Blocks Id System
Command (m for help): ^C
[root@mysql1 ~]# fdisk /dev/sda3
You must set cylinders.
You can do this from the extra functions menu.
Welcome to fdisk (util-linux 2.23.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Command (m for help): p
Disk /dev/sda3: 0 MB, 1024 bytes, 2 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 label type: dos
Disk identifier: 0x000967c6
Device Boot Start End Blocks Id System
Command (m for help): ^C
[root@mysql1 ~]# fdisk /dev/sda
Welcome to fdisk (util-linux 2.23.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Command (m for help): p
Disk /dev/sda: 35.4 GB, 35433480192 bytes, 69206016 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 label type: dos
Disk identifier: 0x000c2fc4
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 2099199 1048576 83 Linux
/dev/sda2 2099200 67108863 32504832 8e Linux LVM
/dev/sda3 67108864 69206015 1048576 5 Extended
Command (m for help): ^C
[root@mysql1 ~]# pvcreate /dev/sda3
Device /dev/sda3 excluded by a filter.
[root@mysql1 ~]# parted /dev/sda3
GNU Parted 3.1
Using /dev/sda3
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) mklabel msdos
Warning: The existing disk label on /dev/sda3 will be destroyed and all data on this disk will be lost. Do you want to continue?
Yes/No? Yes
Error: Partition(s) 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36,
37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64 on /dev/sda3 have been written, but we have
been unable to inform the kernel of the change, probably because it/they are in use. As a result, the old partition(s) will remain in use. You should
reboot now before making further changes.
Ignore/Cancel? Ignore
(parted) quit
Information: You may need to update /etc/fstab.
[root@mysql1 ~]# pvcreate /dev/sda3
Device /dev/sda3 excluded by a filter.
[root@mysql1 ~]# pvs
PV VG Fmt Attr PSize PFree
/dev/sda2 centos lvm2 a-- <31.00g 4.00m
[root@mysql1 ~]# fdisk /dev/sda
Welcome to fdisk (util-linux 2.23.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Command (m for help): m
Command action
a toggle a bootable flag
b edit bsd disklabel
c toggle the dos compatibility flag
d delete a partition
g create a new empty GPT partition table
G create an IRIX (SGI) partition table
l list known partition types
m print this menu
n add a new partition
o create a new empty DOS partition table
p print the partition table
q quit without saving changes
s create a new empty Sun disklabel
t change a partition's system id
u change display/entry units
v verify the partition table
w write table to disk and exit
x extra functionality (experts only)
Command (m for help): d
Partition number (1-3, default 3):
Partition 3 is deleted
Command (m for help): p
Disk /dev/sda: 35.4 GB, 35433480192 bytes, 69206016 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 label type: dos
Disk identifier: 0x000c2fc4
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 2099199 1048576 83 Linux
/dev/sda2 2099200 67108863 32504832 8e Linux LVM
Command (m for help): n
Partition type:
p primary (2 primary, 0 extended, 2 free)
e extended
Select (default p): p
Partition number (3,4, default 3):
First sector (67108864-69206015, default 67108864):
Using default value 67108864
Last sector, +sectors or +size{K,M,G} (67108864-69206015, default 69206015):
Using default value 69206015
Partition 3 of type Linux and of size 1 GiB is set
Command (m for help): p
Disk /dev/sda: 35.4 GB, 35433480192 bytes, 69206016 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 label type: dos
Disk identifier: 0x000c2fc4
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 2099199 1048576 83 Linux
/dev/sda2 2099200 67108863 32504832 8e Linux LVM
/dev/sda3 67108864 69206015 1048576 83 Linux
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
WARNING: Re-reading the partition table failed with error 16: 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)
Syncing disks.
[root@mysql1 ~]# partprobe /dev/sda
[root@mysql1 ~]# pvs
PV VG Fmt Attr PSize PFree
/dev/sda2 centos lvm2 a-- <31.00g 4.00m
[root@mysql1 ~]# pvcreate /dev/sda3
WARNING: dos signature detected on /dev/sda3 at offset 510. Wipe it? [y/n]: y
Wiping dos signature on /dev/sda3.
Physical volume "/dev/sda3" successfully created.
[root@mysql1 ~]# pvs
PV VG Fmt Attr PSize PFree
/dev/sda2 centos lvm2 a-- <31.00g 4.00m
/dev/sda3 lvm2 --- 1.00g 1.00g
[root@mysql1 ~]# vgs
VG #PV #LV #SN Attr VSize VFree
centos 1 2 0 wz--n- <31.00g 4.00m
[root@mysql1 ~]# vgextend centos /dev/sda3
Volume group "centos" successfully extended
[root@mysql1 ~]# pvs
PV VG Fmt Attr PSize PFree
/dev/sda2 centos lvm2 a-- <31.00g 4.00m
/dev/sda3 centos lvm2 a-- 1020.00m 1020.00m
[root@mysql1 ~]# lvs
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
root centos -wi-ao---- 27.79g
swap centos -wi-ao---- <3.20g
[root@mysql1 ~]# lvdisplay|grep centos
LV Path /dev/centos/root
VG Name centos
LV Path /dev/centos/swap
VG Name centos
[root@mysql1 ~]# lvcreate -n root -l 100%free centos
Logical Volume "root" already exists in volume group "centos"
[root@mysql1 ~]# df -h
Filesystem Size Used Avail Use% Mounted on
devtmpfs 1.9G 0 1.9G 0% /dev
tmpfs 1.9G 0 1.9G 0% /dev/shm
tmpfs 1.9G 8.5M 1.9G 1% /run
tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup
/dev/mapper/centos-root 28G 4.8G 24G 17% /
/dev/sda1 1014M 150M 865M 15% /boot
tmpfs 379M 0 379M 0% /run/user/0
[root@mysql1 ~]# xfs_growfs /dev/centos/root
meta-data=/dev/mapper/centos-root isize=512 agcount=4, agsize=1821440 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=0 spinodes=0
data = bsize=4096 blocks=7285760, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=1
log =internal bsize=4096 blocks=3557, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
[root@mysql1 ~]# df -h
Filesystem Size Used Avail Use% Mounted on
devtmpfs 1.9G 0 1.9G 0% /dev
tmpfs 1.9G 0 1.9G 0% /dev/shm
tmpfs 1.9G 8.5M 1.9G 1% /run
tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup
/dev/mapper/centos-root 28G 4.8G 24G 17% /
/dev/sda1 1014M 150M 865M 15% /boot
tmpfs 379M 0 379M 0% /run/user/0
[root@mysql1 ~]# lvs
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
root centos -wi-ao---- 27.79g
swap centos -wi-ao---- <3.20g
[root@mysql1 ~]# vgs
VG #PV #LV #SN Attr VSize VFree
centos 2 2 0 wz--n- 31.99g 1.00g
[root@mysql1 ~]#
[root@mysql1 ~]# lvextend -l 100%FREE /dev/centos/root
New size given (256 extents) not larger than existing size (7115 extents)
[root@mysql1 ~]# lvextend -l +100%FREE /dev/centos/root
Size of logical volume centos/root changed from 27.79 GiB (7115 extents) to 28.79 GiB (7371 extents).
Logical volume centos/root successfully resized.
[root@mysql1 ~]# xfs_growfs /dev/centos/root
meta-data=/dev/mapper/centos-root isize=512 agcount=4, agsize=1821440 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=0 spinodes=0
data = bsize=4096 blocks=7285760, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=1
log =internal bsize=4096 blocks=3557, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
data blocks changed from 7285760 to 7547904
[root@mysql1 ~]# df -h /
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/centos-root 29G 4.8G 25G 17% /
[root@mysql1 ~]#
最后修改时间：2024-02-29 13:21:15
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