抱歉我的英语不好...
我在 lvm2 上有 4 个 3TB 磁盘，并使用 raid 5 创建了 lv。
我在卷组上添加了 2 个新磁盘并尝试扩展 lv，但它不起作用。
这是我的 vg 状态。
# vgdisplay
--- Volume group ---
VG Name vg2
System ID
Format lvm2
Metadata Areas 5
Metadata Sequence No 43
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 1
Open LV 0
Max PV 0
Cur PV 5
Act PV 5
VG Size 13.65 TiB
PE Size 4.00 MiB
Total PE 3576980
Alloc PE / Size 2861584 / 10.92 TiB
Free PE / Size 715396 / 2.73 TiB
VG UUID h5w1kW-pdym-Na7U-dRHf-9Xk5-NX3F-GA19Uf
这是我的 lv 状态。
# lvs
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
lv2 vg2 rwi-a-r--- 8.19t
# lvdisplay
--- Logical volume ---
LV Path /dev/vg2/lv2
LV Name lv2
VG Name vg2
LV UUID aaC9Qc-1Yev-rfyh-fzZh-K32v-nRsj-Bf3msZ
LV Write Access read/write
LV Creation host, time ,
LV Status available
# open 0
LV Size 8.19 TiB
Current LE 2146185
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 1024
Block device 253:8
这是lvextend执行结果。
# lvextend -v -l +100%FREE /dev/vg2/lv2
Converted 100%FREE into at most 715396 physical extents.
Using stripesize of last segment 64.00 KiB
Archiving volume group "vg2" metadata (seqno 43).
Extending logical volume vg2/lv2 to up to 10.92 TiB
Found fewer allocatable extents for logical volume lv2 than requested: using 2146185 extents (reduced by 715395).
Size of logical volume vg2/lv2 unchanged from 8.19 TiB (2146185 extents).
Loading vg2-lv2_rimage_3 table (253:7)
Suppressed vg2-lv2_rimage_3 (253:7) identical table reload.
Loading vg2-lv2_rmeta_3 table (253:6)
Suppressed vg2-lv2_rmeta_3 (253:6) identical table reload.
Loading vg2-lv2_rimage_2 table (253:5)
Suppressed vg2-lv2_rimage_2 (253:5) identical table reload.
Loading vg2-lv2_rmeta_2 table (253:4)
Suppressed vg2-lv2_rmeta_2 (253:4) identical table reload.
Loading vg2-lv2_rimage_1 table (253:3)
Suppressed vg2-lv2_rimage_1 (253:3) identical table reload.
Loading vg2-lv2_rmeta_1 table (253:2)
Suppressed vg2-lv2_rmeta_1 (253:2) identical table reload.
Loading vg2-lv2_rimage_0 table (253:1)
Suppressed vg2-lv2_rimage_0 (253:1) identical table reload.
Loading vg2-lv2_rmeta_0 table (253:0)
Suppressed vg2-lv2_rmeta_0 (253:0) identical table reload.
Loading vg2-lv2 table (253:8)
Suppressed vg2-lv2 (253:8) identical table reload.
Not monitoring vg2/lv2
Suspending vg2-lv2 (253:8) with device flush
Suspending vg2-lv2_rimage_3 (253:7) with device flush
Suspending vg2-lv2_rmeta_3 (253:6) with device flush
Suspending vg2-lv2_rimage_2 (253:5) with device flush
Suspending vg2-lv2_rmeta_2 (253:4) with device flush
Suspending vg2-lv2_rimage_1 (253:3) with device flush
Suspending vg2-lv2_rmeta_1 (253:2) with device flush
Suspending vg2-lv2_rimage_0 (253:1) with device flush
Suspending vg2-lv2_rmeta_0 (253:0) with device flush
Loading vg2-lv2_rimage_3 table (253:7)
Suppressed vg2-lv2_rimage_3 (253:7) identical table reload.
Loading vg2-lv2_rmeta_3 table (253:6)
Suppressed vg2-lv2_rmeta_3 (253:6) identical table reload.
Loading vg2-lv2_rimage_2 table (253:5)
Suppressed vg2-lv2_rimage_2 (253:5) identical table reload.
Loading vg2-lv2_rmeta_2 table (253:4)
Suppressed vg2-lv2_rmeta_2 (253:4) identical table reload.
Loading vg2-lv2_rimage_1 table (253:3)
Suppressed vg2-lv2_rimage_1 (253:3) identical table reload.
Loading vg2-lv2_rmeta_1 table (253:2)
Suppressed vg2-lv2_rmeta_1 (253:2) identical table reload.
Loading vg2-lv2_rimage_0 table (253:1)
Suppressed vg2-lv2_rimage_0 (253:1) identical table reload.
Loading vg2-lv2_rmeta_0 table (253:0)
Suppressed vg2-lv2_rmeta_0 (253:0) identical table reload.
Loading vg2-lv2 table (253:8)
Suppressed vg2-lv2 (253:8) identical table reload.
Resuming vg2-lv2_rimage_3 (253:7)
Resuming vg2-lv2_rmeta_3 (253:6)
Resuming vg2-lv2_rimage_2 (253:5)
Resuming vg2-lv2_rmeta_2 (253:4)
Resuming vg2-lv2_rimage_1 (253:3)
Resuming vg2-lv2_rmeta_1 (253:2)
Resuming vg2-lv2_rimage_0 (253:1)
Resuming vg2-lv2_rmeta_0 (253:0)
Resuming vg2-lv2 (253:8)
Monitoring vg2/lv2
Creating volume group backup "/etc/lvm/backup/vg2" (seqno 44).
Logical volume lv2 successfully resized.
我该如何扩展我的 lv？
更新
我试图覆盖分配策略，但结果是一样的。
# lvextend -v --alloc normal -l +100%FREE /dev/vg2/lv2
Converted 100%FREE into at most 715392 physical extents.
Using stripesize of last segment 64.00 KiB
Archiving volume group "vg2" metadata (seqno 52).
Extending logical volume vg2/lv2 to up to 10.92 TiB
Found fewer allocatable extents for logical volume lv2 than requested: using 2146188 extents (reduced by 715392).
Size of logical volume vg2/lv2 unchanged from 8.19 TiB (2146188 extents).
Loading vg2-lv2_rimage_3 table (253:7)
Suppressed vg2-lv2_rimage_3 (253:7) identical table reload.
Loading vg2-lv2_rmeta_3 table (253:6)
Suppressed vg2-lv2_rmeta_3 (253:6) identical table reload.
Loading vg2-lv2_rimage_2 table (253:5)
Suppressed vg2-lv2_rimage_2 (253:5) identical table reload.
Loading vg2-lv2_rmeta_2 table (253:4)
Suppressed vg2-lv2_rmeta_2 (253:4) identical table reload.
Loading vg2-lv2_rimage_1 table (253:3)
Suppressed vg2-lv2_rimage_1 (253:3) identical table reload.
Loading vg2-lv2_rmeta_1 table (253:2)
Suppressed vg2-lv2_rmeta_1 (253:2) identical table reload.
Loading vg2-lv2_rimage_0 table (253:1)
Suppressed vg2-lv2_rimage_0 (253:1) identical table reload.
Loading vg2-lv2_rmeta_0 table (253:0)
Suppressed vg2-lv2_rmeta_0 (253:0) identical table reload.
Loading vg2-lv2 table (253:8)
Suppressed vg2-lv2 (253:8) identical table reload.
Not monitoring vg2/lv2
Suspending vg2-lv2 (253:8) with device flush
Suspending vg2-lv2_rimage_3 (253:7) with device flush
Suspending vg2-lv2_rmeta_3 (253:6) with device flush
Suspending vg2-lv2_rimage_2 (253:5) with device flush
Suspending vg2-lv2_rmeta_2 (253:4) with device flush
Suspending vg2-lv2_rimage_1 (253:3) with device flush
Suspending vg2-lv2_rmeta_1 (253:2) with device flush
Suspending vg2-lv2_rimage_0 (253:1) with device flush
Suspending vg2-lv2_rmeta_0 (253:0) with device flush
Loading vg2-lv2_rimage_3 table (253:7)
Suppressed vg2-lv2_rimage_3 (253:7) identical table reload.
Loading vg2-lv2_rmeta_3 table (253:6)
Suppressed vg2-lv2_rmeta_3 (253:6) identical table reload.
Loading vg2-lv2_rimage_2 table (253:5)
Suppressed vg2-lv2_rimage_2 (253:5) identical table reload.
Loading vg2-lv2_rmeta_2 table (253:4)
Suppressed vg2-lv2_rmeta_2 (253:4) identical table reload.
Loading vg2-lv2_rimage_1 table (253:3)
Suppressed vg2-lv2_rimage_1 (253:3) identical table reload.
Loading vg2-lv2_rmeta_1 table (253:2)
Suppressed vg2-lv2_rmeta_1 (253:2) identical table reload.
Loading vg2-lv2_rimage_0 table (253:1)
Suppressed vg2-lv2_rimage_0 (253:1) identical table reload.
Loading vg2-lv2_rmeta_0 table (253:0)
Suppressed vg2-lv2_rmeta_0 (253:0) identical table reload.
Loading vg2-lv2 table (253:8)
Suppressed vg2-lv2 (253:8) identical table reload.
Resuming vg2-lv2_rimage_3 (253:7)
Resuming vg2-lv2_rmeta_3 (253:6)
Resuming vg2-lv2_rimage_2 (253:5)
Resuming vg2-lv2_rmeta_2 (253:4)
Resuming vg2-lv2_rimage_1 (253:3)
Resuming vg2-lv2_rmeta_1 (253:2)
Resuming vg2-lv2_rimage_0 (253:1)
Resuming vg2-lv2_rmeta_0 (253:0)
Resuming vg2-lv2 (253:8)
Monitoring vg2/lv2
Creating volume group backup "/etc/lvm/backup/vg2" (seqno 53).
Logical volume lv2 successfully resized.
# vgs -oname,vg_attr,extendable
VG Attr Extendable
vg2 wz--n- extendable
我改变了 lv 分配策略，但lvextend仍然说范围不足。
# lvchange --alloc normal vg2/lv2
Logical volume "lv2" changed.
# lvs
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
lv2 vg2 rwn-a-r--- 8.19t 100.00
# lvextend -v --alloc normal -l +100%FREE /dev/vg2/lv2
Converted 100%FREE into at most 715392 physical extents.
Using stripesize of last segment 64.00 KiB
Archiving volume group "vg2" metadata (seqno 52).
Extending logical volume vg2/lv2 to up to 10.92 TiB
Found fewer allocatable extents for logical volume lv2 than requested: using 2146188 extents (reduced by 715392).
Size of logical volume vg2/lv2 unchanged from 8.19 TiB (2146188 extents).
Loading vg2-lv2_rimage_3 table (253:7)
Suppressed vg2-lv2_rimage_3 (253:7) identical table reload.
Loading vg2-lv2_rmeta_3 table (253:6)
Suppressed vg2-lv2_rmeta_3 (253:6) identical table reload.
Loading vg2-lv2_rimage_2 table (253:5)
Suppressed vg2-lv2_rimage_2 (253:5) identical table reload.
Loading vg2-lv2_rmeta_2 table (253:4)
Suppressed vg2-lv2_rmeta_2 (253:4) identical table reload.
Loading vg2-lv2_rimage_1 table (253:3)
Suppressed vg2-lv2_rimage_1 (253:3) identical table reload.
Loading vg2-lv2_rmeta_1 table (253:2)
Suppressed vg2-lv2_rmeta_1 (253:2) identical table reload.
Loading vg2-lv2_rimage_0 table (253:1)
Suppressed vg2-lv2_rimage_0 (253:1) identical table reload.
Loading vg2-lv2_rmeta_0 table (253:0)
Suppressed vg2-lv2_rmeta_0 (253:0) identical table reload.
Loading vg2-lv2 table (253:8)
Suppressed vg2-lv2 (253:8) identical table reload.
Not monitoring vg2/lv2
Suspending vg2-lv2 (253:8) with device flush
Suspending vg2-lv2_rimage_3 (253:7) with device flush
Suspending vg2-lv2_rmeta_3 (253:6) with device flush
Suspending vg2-lv2_rimage_2 (253:5) with device flush
Suspending vg2-lv2_rmeta_2 (253:4) with device flush
Suspending vg2-lv2_rimage_1 (253:3) with device flush
Suspending vg2-lv2_rmeta_1 (253:2) with device flush
Suspending vg2-lv2_rimage_0 (253:1) with device flush
Suspending vg2-lv2_rmeta_0 (253:0) with device flush
Loading vg2-lv2_rimage_3 table (253:7)
Suppressed vg2-lv2_rimage_3 (253:7) identical table reload.
Loading vg2-lv2_rmeta_3 table (253:6)
Suppressed vg2-lv2_rmeta_3 (253:6) identical table reload.
Loading vg2-lv2_rimage_2 table (253:5)
Suppressed vg2-lv2_rimage_2 (253:5) identical table reload.
Loading vg2-lv2_rmeta_2 table (253:4)
Suppressed vg2-lv2_rmeta_2 (253:4) identical table reload.
Loading vg2-lv2_rimage_1 table (253:3)
Suppressed vg2-lv2_rimage_1 (253:3) identical table reload.
Loading vg2-lv2_rmeta_1 table (253:2)
Suppressed vg2-lv2_rmeta_1 (253:2) identical table reload.
Loading vg2-lv2_rimage_0 table (253:1)
Suppressed vg2-lv2_rimage_0 (253:1) identical table reload.
Loading vg2-lv2_rmeta_0 table (253:0)
Suppressed vg2-lv2_rmeta_0 (253:0) identical table reload.
Loading vg2-lv2 table (253:8)
Suppressed vg2-lv2 (253:8) identical table reload.
Resuming vg2-lv2_rimage_3 (253:7)
Resuming vg2-lv2_rmeta_3 (253:6)
Resuming vg2-lv2_rimage_2 (253:5)
Resuming vg2-lv2_rmeta_2 (253:4)
Resuming vg2-lv2_rimage_1 (253:3)
Resuming vg2-lv2_rmeta_1 (253:2)
Resuming vg2-lv2_rimage_0 (253:1)
Resuming vg2-lv2_rmeta_0 (253:0)
Resuming vg2-lv2 (253:8)
Monitoring vg2/lv2
Creating volume group backup "/etc/lvm/backup/vg2" (seqno 53).
Logical volume lv2 successfully resized.
编辑
结果如下pvdisplay。/dev/sdb1可分配
# pvdisplay
--- Physical volume ---
PV Name /dev/sdg1
VG Name vg2
PV Size 2.73 TiB / not usable 3.00 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 715396
Free PE 0
Allocated PE 715396
PV UUID QzjE6n-FRSj-NloW-ejFv-B0i0-lfqn-1O03Vu
--- Physical volume ---
PV Name /dev/sdc1
VG Name vg2
PV Size 2.73 TiB / not usable 3.00 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 715396
Free PE 0
Allocated PE 715396
PV UUID bwFwkf-d2zz-1TQR-PR11-IsgN-0P2n-BYMhfW
--- Physical volume ---
PV Name /dev/sde1
VG Name vg2
PV Size 2.73 TiB / not usable 3.00 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 715396
Free PE 0
Allocated PE 715396
PV UUID fWnIz6-Jgf3-QpPW-VKvr-Od1H-cFAp-UrQe6E
--- Physical volume ---
PV Name /dev/sdf1
VG Name vg2
PV Size 2.73 TiB / not usable 3.00 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 715396
Free PE 0
Allocated PE 715396
PV UUID e5rd2D-Xsh8-HD93-KVDs-TtPC-2sM1-i1AROl
--- Physical volume ---
PV Name /dev/sdb1
VG Name vg2
PV Size 2.73 TiB / not usable 3.00 MiB
Allocatable yes
PE Size 4.00 MiB
Total PE 715396
Free PE 715392
Allocated PE 4
PV UUID SrIKSJ-RzON-Kelu-rC0O-8rLd-rIpI-Fkd1BW
答案1
我意识到 lvm 不支持 raid 类型从 raid 5 更改为 raid 6。
我计划在添加 2 个磁盘后将 raid 5 更改为 raid 6。
现在我改变计划了。
- 删除 lv 上可以从其他存储中恢复的数据。
- 使用 3 或 4 个磁盘创建降级的 mdadm raid 6 存储。
- 将所有数据从 lvm raid 5 移动到降级的 raid 6 存储。
- 销毁 lvm raid 并将所有 lvm 磁盘添加到降级的 raid 6。
- 重建 raid 6 存储并检索已删除的数据。
我不确定这个计划是否好，无论如何现在我知道 lvm raid 不是管理存储的好选择。
我将关闭我的帖子，我的斗争已经结束了。;)