GPT分区扩容——以xfs文件系统为例-HQY 一个和谐有爱的空间

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2025
04
15:27:05

GPT分区扩容——以xfs文件系统为例

扩容已有GPT分区

parted命令主要用于 GPT分区表的操作

GPT：GPT 分区表支持更大的硬盘容量。它使用64位的逻辑块地址，因此可以支持超过2 TB的硬盘容量

分区后扩容

以xfs文件系统为例

[root@localhost ~]# df -Th
Filesystem Type Size Used Avail Use% Mounted on
devtmpfs devtmpfs 1.9G 0 1.9G 0% /dev
tmpfs tmpfs 1.9G 0 1.9G 0% /dev/shm
tmpfs tmpfs 1.9G 20M 1.9G 2% /run
tmpfs tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup
/dev/mapper/centos-root xfs 53G 3.2G 50G 6% /
/dev/sda1 xfs 797M 151M 647M 19% /boot
tmpfs tmpfs 378M 0 378M 0% /run/user/0
/dev/mapper/vgdata-lvdata ext4 689G 69M 658G 1% /data
/dev/sdf1 xfs 10G 33M 10G 1% /aaa
[root@localhost ~]# parted /dev/sdf
GNU Parted 3.1
Using /dev/sdf
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print
Error: The backup GPT table is not at the end of the disk, as it should be. This might mean that another operating system believes the
disk is smaller. Fix, by moving the backup to the end (and removing the old backup)?
Fix/Ignore/Cancel? fix
Warning: Not all of the space available to /dev/sdf appears to be used, you can fix the GPT to use all of the space (an extra 20971520
blocks) or continue with the current setting?
Fix/Ignore? fix
Model: VMware Virtual disk (scsi)
Disk /dev/sdf: 21.5GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:

Number Start End Size File system Name Flags
1 1049kB 10.7GB 10.7GB xfs primary

(parted) rm 1
(parted) mkpart primary 1049kB 100%
(parted) print
Model: VMware Virtual disk (scsi)
Disk /dev/sdf: 21.5GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:

Number Start End Size File system Name Flags
1 1049kB 21.5GB 21.5GB xfs primary

(parted) quit
Information: You may need to update /etc/fstab.
[root@localhost ~]# mount /dev/sdf1 /aaa
[root@localhost ~]# xfs_growfs /aaa
meta-data=/dev/sdf1 isize=512 agcount=4, agsize=655232 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=0 spinodes=0
data = bsize=4096 blocks=2620928, 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 2620928 to 5242368
[root@localhost ~]# df -Th
Filesystem Type Size Used Avail Use% Mounted on
devtmpfs devtmpfs 1.9G 0 1.9G 0% /dev
tmpfs tmpfs 1.9G 0 1.9G 0% /dev/shm
tmpfs tmpfs 1.9G 20M 1.9G 2% /run
tmpfs tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup
/dev/mapper/centos-root xfs 53G 3.2G 50G 6% /
/dev/sda1 xfs 797M 151M 647M 19% /boot
tmpfs tmpfs 378M 0 378M 0% /run/user/0
/dev/mapper/vgdata-lvdata ext4 689G 69M 658G 1% /data
/dev/sdf1 xfs 20G 33M 20G 1% /aaa