我有一个带有 RHEL 的虚拟机，用作 Veeam 的备份存储库。现在我需要扩展分区进行备份。
- 原始大小为 17TB
- 我将VMware中的HDD扩展至19TB（这是VMware中的第二个HDD），然后重新启动了VM。
- 重新启动后，在
fdisk -l输出中我看到一些有关 19TB 虚拟磁盘的信息，但备份路径仍然是 17 TB -/backup(/dev/mapper/vg02-backup)
输出fdisk -l如下：
[root@bckrepo01 ~]# fdisk -l
Disk /dev/sda: 60 GiB, 64424509440 bytes, 125829120 sectors
Disk model: Virtual disk
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: gpt
Disk identifier: 08B39BDB-49C7-4B76-BC5D-1BDCD5AA1DE5
Device Start End Sectors Size Type
/dev/sda1 2048 1230847 1228800 600M EFI System
/dev/sda2 1230848 3327999 2097152 1G Linux filesystem
/dev/sda3 3328000 108201983 104873984 50G Linux LVM
The backup GPT table is not on the end of the device.
Disk /dev/sdb: 19 TiB, 20890720927744 bytes, 40802189312 sectors
Disk model: Virtual disk
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: gpt
Disk identifier: 952E38DA-AC78-DD44-AF19-B31C2FD62B00
Device Start End Sectors Size Type
/dev/sdb1 2048 27917287390 27917285343 13T Linux filesystem
/dev/sdb2 27917287424 36507221982 8589934559 4T Linux filesystem
Disk /dev/mapper/vg01-root: 4 GiB, 4294967296 bytes, 8388608 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/vg01-swap: 8 GiB, 8589934592 bytes, 16777216 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/vg01-usr: 8 GiB, 8589934592 bytes, 16777216 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/vg02-backup: 17 TiB, 18691689283584 bytes, 36507205632 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/vg01-tmp: 4 GiB, 4294967296 bytes, 8388608 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/vg01-home: 2 GiB, 2147483648 bytes, 4194304 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/vg01-var: 16 GiB, 17179869184 bytes, 33554432 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/vg01-opt: 8 GiB, 8589934592 bytes, 16777216 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@bckrepo01 ~]#
输出如下
[root@bckrepo01 ~]# pvdisplay
--- Physical volume ---
PV Name /dev/sdb1
VG Name vg02
PV Size <13.00 TiB / not usable 2.98 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 3407871
Free PE 0
Allocated PE 3407871
PV UUID lVTuSm-GUEJ-re6D-wWWl-BOTB-tGJt-15WSXR
--- Physical volume ---
PV Name /dev/sdb2
VG Name vg02
PV Size <4.00 TiB / not usable 3.98 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 1048575
Free PE 0
Allocated PE 1048575
PV UUID Xd3k9k-PHj1-3lKY-jS3W-JLPB-kP1E-QeTrl2
--- Physical volume ---
PV Name /dev/sda3
VG Name vg01
PV Size <50.01 GiB / not usable 4.00 MiB
Allocatable yes
PE Size 4.00 MiB
Total PE 12801
Free PE 1
Allocated PE 12800
PV UUID 2EnuN5-5FTY-02iZ-O8w8-G5WS-kkng-3wv5i9
谢谢你的帮助
答案1
安装该growpart实用程序（包名称可能cloud-utils-growpart在某些发行版中），然后运行：
sudo growpart /dev/sdb 2 #yes, with the space
sudo pvresize /dev/sdb2
然后新容量将像往常一样在 LVM 中可用。要将其全部添加到您的备份 LV：
sudo lvextend -l +100%FREE -r /dev/mapper/vg02-backup