所以我最近订购了一个有 2 个 2TB 硬盘的 VPS。我安装了 Ubuntu 20.04，然后按照本指南（法语）尝试将空间合并为 4TB（或者更少一点），但现在出现了错误。
这是我的 vgdisplay -v 命令的输出：
WARNING: Couldn't find device with uuid A6wuiG-M85U-7RT2-GF2w-TYoi-kIOu-53ofCY.
WARNING: VG mystorage is missing PV A6wuiG-M85U-7RT2-GF2w-TYoi-kIOu-53ofCY (last written to /dev/sda4).
--- Volume group ---
VG Name mystorage
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 2
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 1
Open LV 0
Max PV 0
Cur PV 2
Act PV 1
VG Size <3.59 TiB
PE Size 4.00 MiB
Total PE 940679
Alloc PE / Size 940679 / <3.59 TiB
Free PE / Size 0 / 0
VG UUID ImvQ22-0OPa-psI3-Y80o-UknX-86Zj-Ta3S3a
--- Logical volume ---
LV Path /dev/mystorage/mylv
LV Name mylv
VG Name mystorage
LV UUID xnMVfF-elmu-WoLg-3Dfy-DQiI-hdD2-ftM13f
LV Write Access read/write
LV Creation host, time ns385746, 2022-03-02 01:47:37 +0000
LV Status NOT available
LV Size <3.59 TiB
Current LE 940679
Segments 2
Allocation inherit
Read ahead sectors auto
--- Physical volumes ---
PV Name [unknown]
PV UUID A6wuiG-M85U-7RT2-GF2w-TYoi-kIOu-53ofCY
PV Status allocatable
Total PE / Free PE 463747 / 0
PV Name /dev/sdb
PV UUID 11ENzP-bTbI-rx22-3zCY-KGAo-qT7h-Z9z78t
PV Status allocatable
Total PE / Free PE 476932 / 0
pvdisplay 的输出
WARNING: Couldn't find device with uuid A6wuiG-M85U-7RT2-GF2w-TYoi-kIOu-53ofCY.
WARNING: VG mystorage is missing PV A6wuiG-M85U-7RT2-GF2w-TYoi-kIOu-53ofCY (last written to /dev/sda4).
--- Physical volume ---
PV Name [unknown]
VG Name mystorage
PV Size <1.77 TiB / not usable <4.09 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 463747
Free PE 0
Allocated PE 463747
PV UUID A6wuiG-M85U-7RT2-GF2w-TYoi-kIOu-53ofCY
--- Physical volume ---
PV Name /dev/sdb
VG Name mystorage
PV Size <1.82 TiB / not usable <1.09 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 476932
Free PE 0
Allocated PE 476932
PV UUID 11ENzP-bTbI-rx22-3zCY-KGAo-qT7h-Z9z78t
执行 lvmdiskscan -l 后
WARNING: only considering LVM devices
/dev/sdb [ <1.82 TiB] LVM physical volume
1 LVM physical volume whole disk
0 LVM physical volumes
我对此真的很陌生。如何将 2 个 2TB 驱动器用作 1 个 4TB 驱动器？如能提供详细回复，我们将不胜感激。
编辑：运行后
pvcreate -vvv ....
我注意到：
Opened /dev/sda4 RO O_DIRECT
/dev/sda4: size is 2 sectors
Closed /dev/sda4
/dev/sda4: Skipping: Too small to hold a PV
filter caching bad /dev/sda4
所以我跑了
sudo cat /proc/partitions
并且 sda4 显示为 1 个块？
major minor #blocks name
7 0 63396 loop0
7 1 63376 loop1
7 2 68856 loop2
7 3 69552 loop3
7 4 44632 loop4
8 0 1953514584 sda
8 1 1048576 sda1
8 2 524288 sda2
8 3 52428800 sda3
8 4 1 sda4
8 16 1953514584 sdb