Lvm

LVM2 新添加的磁碟立即報告已滿

  • February 25, 2018

我使用 webmin 將 4TB 磁碟格式化為 EXT4 (/dev/sdk1) 添加到我的 lvm2 陣列。然後我要求 webmin 擴展文件系統以包含該磁碟。它報告了一個錯誤,我沒有拍攝快照。但是,它已將磁碟添加到邏輯卷,並且該卷報告了新的總大小,但仍有舊的可用空間量。當我查看 pvdisplay 時,它顯示新磁碟已滿!我該如何糾正這個錯誤。我試過 e2fsck,它報告 lv 是乾淨的。下面是我的 vgdisplay、pvdisplay 和 lvdisplay 結果:

name@Server:~$ sudo pvdisplay
--- Physical volume ---
PV Name               /dev/sdg1
VG Name               samba
PV Size               3.64 TiB / not usable 2.00 MiB
Allocatable           yes (but full)
PE Size               4.00 MiB
Total PE              953861
Free PE               0
Allocated PE          953861
PV UUID               VCtRWQ-c2u3-jIb3-AwGH-Wdpm-BNAz-U1QvzZ

--- Physical volume ---
PV Name               /dev/sdh1
VG Name               samba
PV Size               931.51 GiB / not usable 4.00 MiB
Allocatable           yes (but full)
PE Size               4.00 MiB
Total PE              238466
Free PE               0
Allocated PE          238466
PV UUID               0zHiKC-TTBn-L1TK-qmSo-y34W-G4mn-VCJXhA

--- Physical volume ---
PV Name               /dev/sdf1
VG Name               samba
PV Size               1.82 TiB / not usable 4.00 MiB
Allocatable           yes (but full)
PE Size               4.00 MiB
Total PE              476931
Free PE               0
Allocated PE          476931
PV UUID               5eOiZr-BdYk-Jk6c-X5fA-jMvf-7pdM-qvYI6G

--- Physical volume ---
PV Name               /dev/sde1
VG Name               samba
PV Size               3.64 TiB / not usable 2.00 MiB
Allocatable           yes (but full)
PE Size               4.00 MiB
Total PE              953861
Free PE               0
Allocated PE          953861
PV UUID               mrxqc3-qurh-eMER-dwRB-YTOB-fNf0-KPlfmg

--- Physical volume ---
PV Name               /dev/sdj1
VG Name               samba
PV Size               931.51 GiB / not usable 4.00 MiB
Allocatable           yes (but full)
PE Size               4.00 MiB
Total PE              238466
Free PE               0
Allocated PE          238466
PV UUID               SG2gP9-NLII-OsWd-tWGJ-Di8r-pDtT-rkcnTj

--- Physical volume ---
PV Name               /dev/sdm1
VG Name               samba
PV Size               1.82 TiB / not usable 4.00 MiB
Allocatable           yes (but full)
PE Size               4.00 MiB
Total PE              476931
Free PE               0
Allocated PE          476931
PV UUID               Ycqd4P-noXD-Nzgx-auAc-zzrS-F4KE-JSSMCd

--- Physical volume ---
PV Name               /dev/sdl1
VG Name               samba
PV Size               1.82 TiB / not usable 4.00 MiB
Allocatable           yes (but full)
PE Size               4.00 MiB
Total PE              476931
Free PE               0
Allocated PE          476931
PV UUID               XexUjT-PlM4-PQMu-9frH-dAVi-S8tC-hunsby

--- Physical volume ---
PV Name               /dev/sda1
VG Name               samba
PV Size               7.28 TiB / not usable 4.00 MiB
Allocatable           yes (but full)
PE Size               4.00 MiB
Total PE              1907720
Free PE               0
Allocated PE          1907720
PV UUID               ruDYpO-W9n8-XpMp-yLtg-3hfr-AOcX-DyAKlO

--- Physical volume ---
PV Name               /dev/sdk1
VG Name               samba
PV Size               3.64 TiB / not usable 2.00 MiB
Allocatable           yes (but full)
PE Size               4.00 MiB
Total PE              953861
Free PE               0
Allocated PE          953861
PV UUID               SEn3i2-8TcV-D2sm-6Ahe-pgQ4-hPzm-8wTDx1

name@Server:~$ sudo lvdisplay
--- Logical volume ---
LV Path                /dev/samba/media
LV Name                media
VG Name                samba
LV UUID                t3ItFs-3HWB-ZAZj-A0Ia-MDAe-sITn-tWaml1
LV Write Access        read/write
LV Creation host, time Server, 2017-08-03 17:36:54 +0100
LV Status              available
# open                 1
LV Size                25.47 TiB
Current LE             6677028
Segments               9
Allocation             inherit
Read ahead sectors     auto
- currently set to     256
Block device           252:0

name@Server:~$ sudo vgdisplay
--- Volume group ---
VG Name               samba
System ID             
Format                lvm2
Metadata Areas        9
Metadata Sequence No  43
VG Access             read/write
VG Status             resizable
MAX LV                0
Cur LV                1
Open LV               1
Max PV                0
Cur PV                9
Act PV                9
VG Size               25.47 TiB
PE Size               4.00 MiB
Total PE              6677028
Alloc PE / Size       6677028 / 25.47 TiB
Free  PE / Size       0 / 0   
VG UUID               S2A8Yl-CKR3-hhEf-DOoc-c564-e5DQ-GZ2vMb

任何和所有的幫助表示讚賞。我想知道我是否可以刪除新磁碟-因為它上面應該沒有數據-然後使用強制刪除選項並查看是否可以恢復舊陣列,但是因為它已經將新 pv 分配給了 lv,我會失去lv嗎?

“我在我的 lvm2 中添加了一個格式化為 EXT4 (/dev/sdk1) 的 4TB 磁碟” - 這是你的第一個問題。將空白磁碟添加到 LVM。當你製作一個填充它的 LV 時,你不想在磁碟上找到舊的超級塊。文件系統位於 LV 之上,而不是 PV 之上。

此外,如果您將整個磁碟添加到 LVM,則不必在它們上放置分區表。添加原始磁碟更加簡單和可靠,尤其是在更換它們時。

為了讓我更準確地解決您的問題,我將不得不查看添加期間該錯誤是什麼。此處提供的資訊將指導您從何處以及如何獲取該資訊。lvmdump最有用的將來自/etc/lvm/archive/.

https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/4/html/Cluster_Logical_Volume_Manager/troubleshooting.html

關於您關於刪除和重新添加的問題,是的,如果您的 VG 在其他 PV 中有足夠的空間來取消分配您希望刪除的那個,您應該能夠做到這一點。從 VG 中刪除 PV 就像指示 LVM 將該磁碟上的所有擴展區移動到 VG 中的其他磁碟一樣簡單,然後通過從陣列中刪除該磁碟來縮小 VG:

pvmove /dev/sdk1
vgreduce samba /dev/sdk1

更新

自從查看提供的數據以來,看起來所有 LVM 更改都成功了,webmin 已將新磁碟添加到現有的“samba”VG - 將 VG 擴展了大約 4TiB,然後將“媒體”LV 擴展到剩餘的空閒物理範圍由該新磁碟提供。失敗(實際上是無聲地)是resize2fs /dev/samba/media命令,該命令應該在擴展 LV 本身之後調整“媒體”LV 之上的現有 EXT4 文件系統的大小。

引用自:https://serverfault.com/questions/898660