VMWare扩容
VMWare虚拟机的磁盘快满了，Podman占用的空间太大，准备清理下Podman的空间，然后给磁盘扩下容。
⚡ root@centos9 ~ podman system df
TYPE TOTAL ACTIVE SIZE RECLAIMABLE
Images 2 0 4.243GB 4.243GB (100%)
Containers 0 0 0B 0B (0%)
Local Volumes 1 0 23.29GB 23.29GB (100%)Podman占空间的主要是镜像文件和本地卷，分别做下清理
podman system prune -a
podman volume prune清理后：
⚡ root@centos9 ~ podman system df
TYPE TOTAL ACTIVE SIZE RECLAIMABLE
Images 0 0 0B 0B (0%)
Containers 0 0 0B 0B (0%)
Local Volumes 0 0 0B 0B (0%)虚拟机关机后，VMWare软件虚拟机设置-硬盘-扩展，将硬盘从原来的90G扩容到200G。
VMWare这一步很简单，主要是下面虚拟机的配置。
由于新扩容的空间是未分区的空间，还需要CentOS中配置下。
CenOS查看未分区的空间
⚡ root@centos9 ~ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
sda 8:0 0 200G 0 disk
├─sda1 8:1 0 2M 0 part
├─sda2 8:2 0 300M 0 part /boot
└─sda3 8:3 0 89.7G 0 part
└─cs-root 253:0 0 89.7G 0 lvm /
sr0 11:0 1 91.8M 0 rom
sr1 11:1 1 8.1G 0 rom
✘ ⚡ root@centos9 ~ fdisk /dev/sda
Welcome to fdisk (util-linux 2.37.4).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
This disk is currently in use - repartitioning is probably a bad idea.
It's recommended to umount all file systems, and swapoff all swap
partitions on this disk.
Command (m for help): p
Disk /dev/sda: 200 GiB, 214748364800 bytes, 419430400 sectors
Disk model: VMware Virtual S
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: 0xad5e0be1
Device Boot Start End Sectors Size Id Type
/dev/sda1 2048 6143 4096 2M 83 Linux
/dev/sda2 * 6144 620543 614400 300M 83 Linux
/dev/sda3 620544 188743679 188123136 89.7G 8e Linux LVM
Command (m for help):
✘ ⚡ root@centos9 ~ fdisk /dev/sda
Welcome to fdisk (util-linux 2.37.4).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
This disk is currently in use - repartitioning is probably a bad idea.
It's recommended to umount all file systems, and swapoff all swap
partitions on this disk.
Command (m for help): F
Unpartitioned space /dev/sda: 110 GiB, 118111600640 bytes, 230686720 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
Start End Sectors Size
188743680 419430399 230686720 110G
Command (m for help): 思路
有两个思路，第一个思路：用fdisk新建分区，mkfs格式化新建分区，然后pvcreate将新建的分区创建物理卷，再利用lvextend将物理卷合并到原来的卷组中。这样做总感觉文件存放在两个拼接的分区性能受影响。
于是又了另一个思路：将未分区的空间合并到已分区的空间。就是将110G的未分配空间合并到/dev/sda3
parted ---pretend-input-tty /dev/sda resizepart 3 100%;
partx -u /dev/sda; pvresize /dev/sda3;
lvextend -r cs/root /dev/sda3具体操作日志：
⚡ root@centos9 ~ parted ---pretend-input-tty /dev/sda resizepart 3 100%;
Information: You may need to update /etc/fstab.
⚡ root@centos9 ~ partx -u /dev/sda; pvresize /dev/sda3;
Physical volume "/dev/sda3" changed
1 physical volume(s) resized or updated / 0 physical volume(s) not resized
⚡ root@centos9 ~ lvextend -r cs-root /dev/sda3
Please specify a logical volume path.
Run `lvextend --help' for more information.
✘ ⚡ root@centos9 ~ lvextend -r cs/root /dev/sda3
Size of logical volume cs/root changed from 89.70 GiB (22964 extents) to 199.70 GiB (51124 extents).
Logical volume cs/root successfully resized.
meta-data=/dev/mapper/cs-root isize=512 agcount=4, agsize=5878784 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=1, sparse=1, rmapbt=0
= reflink=1 bigtime=1 inobtcount=1
data = bsize=4096 blocks=23515136, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0, ftype=1
log =internal log bsize=4096 blocks=11482, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
data blocks changed from 23515136 to 52350976
⚡ root@centos9 ~ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
sda 8:0 0 200G 0 disk
├─sda1 8:1 0 2M 0 part
├─sda2 8:2 0 300M 0 part /boot
└─sda3 8:3 0 199.7G 0 part
└─cs-root 253:0 0 199.7G 0 lvm /
sr0 11:0 1 91.8M 0 rom
sr1 11:1 1 8.1G 0 rom 转载请注明来源，欢迎指出任何有错误或不够清晰的表达。可以邮件至 backendcloud@gmail.com
