ゲストOSのクローン作成をするも空き領域が足りない。
# virt-clone -o www -n www2 -f /var/kvm/images/www2.img
ERROR ディスクを作成するための十分な空き領域がありません。 30720 MBの要求 > 13898 MBの空き
サーバーシャットダウン後、物理ディスク(2TB)を追加して起動。
以下のサイトを参考にして/extdisk1に1.7T追加されるようになった。
http://kajuhome.com/disk_extension.shtml
# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_centos6-lv_root
50G 43G 4.3G 91% /
tmpfs 2.9G 84K 2.9G 1% /dev/shm
/dev/sda1 477M 142M 310M 32% /boot
/dev/mapper/vg_centos6-lv_home
174G 61M 165G 1% /home
/dev/sdb1 1.8T 196M 1.7T 1% /extdisk1 /***/extdisk1を作成してmountコマンド実施済***/
その後virt-clone を実行するも変わらず。
たぶん
/dev/mapper/vg_centos6-lv_root
の領域を増やす必要があると予測。
http://j-caw.co.jp/blog/?p=991
を参考に
/dev/mapper/vg_centos6-lv_root
の領域をふやしてみた。
以下実行手順
# umount /dev/sdb1 ***df -hで/dev/sdb1を/extdisk1からはずす**/
# df -h /***/dev/sdb1が表示されないことを確認***/
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_centos6-lv_root
50G 43G 4.3G 91% /
tmpfs 2.9G 84K 2.9G 1% /dev/shm
/dev/sda1 477M 142M 310M 32% /boot
/dev/mapper/vg_centos6-lv_home
174G 61M 165G 1% /home
# pvcreate /dev/sdb1 /***物理ディスク作成***/
Physical volume "/dev/sdb1" successfully created
# pvdisplay
--- Physical volume ---
PV Name /dev/sda2
VG Name vg_centos6
PV Size 232.40 GiB / not usable 2.00 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 59493
Free PE 0
Allocated PE 59493
PV UUID 4y7MhE-FqgU-sNBF-fRca-E2cR-mm72-jpkc4Q
"/dev/sdb1" is a new physical volume of "1.82 TiB"
--- NEW Physical volume ---
PV Name /dev/sdb1
VG Name
PV Size 1.82 TiB
Allocatable NO
PE Size 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID SdhrPT-uhoB-scAS-0vdG-BOnD-S27d-AibzTf
# vgdisplay
--- Volume group ---
VG Name vg_centos6
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 4
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 3
Open LV 3
Max PV 0
Cur PV 1
Act PV 1
VG Size 232.39 GiB
PE Size 4.00 MiB
Total PE 59493
Alloc PE / Size 59493 / 232.39 GiB
Free PE / Size 0 / 0
VG UUID l7l1Qm-1a6k-aLuo-f6as-Ad9W-fKUb-rlSp0Q
# lvdisplay /dev/mapper/vg_centos6-lv_root /***LV Sizeは50GB***/
--- Logical volume ---
LV Path /dev/vg_centos6/lv_root
LV Name lv_root
VG Name vg_centos6
LV UUID 0GHTft-n48J-prcX-hV1O-fZ1R-ZlL2-dvdAWG
LV Write Access read/write
LV Creation host, time centos6, 2015-12-05 22:27:49 +0900
LV Status available
# open 1
LV Size 50.00 GiB
Current LE 12800
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:0
# vgdisplay
--- Volume group ---
VG Name vg_centos6
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 4
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 3
Open LV 3
Max PV 0
Cur PV 1
Act PV 1
VG Size 232.39 GiB
PE Size 4.00 MiB
Total PE 59493
Alloc PE / Size 59493 / 232.39 GiB
Free PE / Size 0 / 0
VG UUID l7l1Qm-1a6k-aLuo-f6as-Ad9W-fKUb-rlSp0Q
# pvdisplay /***既存のVG Nameと新規作成のPV Nameを確認***/
--- Physical volume ---
PV Name /dev/sda2
VG Name vg_centos6
PV Size 232.40 GiB / not usable 2.00 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 59493
Free PE 0
Allocated PE 59493
PV UUID 4y7MhE-FqgU-sNBF-fRca-E2cR-mm72-jpkc4Q
"/dev/sdb1" is a new physical volume of "1.82 TiB"
--- NEW Physical volume ---
PV Name /dev/sdb1
VG Name
PV Size 1.82 TiB
Allocatable NO
PE Size 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID SdhrPT-uhoB-scAS-0vdG-BOnD-S27d-AibzTf
# vgextend vg_centos6 /dev/sdb1 /***ボリュームグループを拡張***/
Volume group "vg_centos6" successfully extended
# vgdisplay /***Free PE / Sizeが増えている***/
--- Volume group ---
VG Name vg_centos6
System ID
Format lvm2
Metadata Areas 2
Metadata Sequence No 5
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 3
Open LV 3
Max PV 0
Cur PV 2
Act PV 2
VG Size 2.05 TiB
PE Size 4.00 MiB
Total PE 536424
Alloc PE / Size 59493 / 232.39 GiB
Free PE / Size 476931 / 1.82 TiB
VG UUID l7l1Qm-1a6k-aLuo-f6as-Ad9W-fKUb-rlSp0Q
# lvextend -L+10G /dev/mapper/vg_centos6-lv_root /***10G拡張する***/
（参考 https://access.redhat.com/documentation/ja-JP/Red_Hat_Enterprise_Linux/6/html/Logical_Volume_Manager_Administration/lv_extend.html）
Size of logical volume vg_centos6/lv_root changed from 50.00 GiB (12800 extents) to 60.00 GiB (15360 extents).
Logical volume lv_root successfully resized
# lvdisplay /***LV Sizeが10G増えて60となっている***/
--- Logical volume ---
LV Path /dev/vg_centos6/lv_root
LV Name lv_root
VG Name vg_centos6
LV UUID 0GHTft-n48J-prcX-hV1O-fZ1R-ZlL2-dvdAWG
LV Write Access read/write
LV Creation host, time centos6, 2015-12-05 22:27:49 +0900
LV Status available
# open 1
LV Size 60.00 GiB
Current LE 15360
Segments 2
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:0
--- Logical volume ---
LV Path /dev/vg_centos6/lv_home
LV Name lv_home
VG Name vg_centos6
LV UUID F6FT0Y-TKse-zeMy-dEwc-JBMW-66fG-x9GxGW
LV Write Access read/write
LV Creation host, time centos6, 2015-12-05 22:28:16 +0900
LV Status available
# open 1
LV Size 176.58 GiB
Current LE 45205
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:2
--- Logical volume ---
LV Path /dev/vg_centos6/lv_swap
LV Name lv_swap
VG Name vg_centos6
LV UUID 9OSVwv-wmEa-CYcA-aYn0-q3Br-0CmH-tUliqW
LV Write Access read/write
LV Creation host, time centos6, 2015-12-05 22:29:42 +0900
LV Status available
# open 1
LV Size 5.81 GiB
Current LE 1488
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:1
# df -h /***/dev/mapper/vg_centos6-lv_rootは50Gのままで増えていない***/
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_centos6-lv_root
50G 43G 4.3G 91% /
tmpfs 2.9G 80K 2.9G 1% /dev/shm
/dev/sda1 477M 142M 310M 32% /boot
/dev/mapper/vg_centos6-lv_home
174G 61M 165G 1% /home
# resize2fs /dev/mapper/vg_centos6-lv_root
resize2fs 1.41.12 (17-May-2010)
Filesystem at /dev/mapper/vg_centos6-lv_root is mounted on /; on-line resizing required
old desc_blocks = 4, new_desc_blocks = 4
Performing an on-line resize of /dev/mapper/vg_centos6-lv_root to 15728640 (4k) blocks.
The filesystem on /dev/mapper/vg_centos6-lv_root is now 15728640 blocks long.
# df -h /***resize2fs実行後は/dev/mapper/vg_centos6-lv_rootは59Gと約10G増えている***/
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_centos6-lv_root
59G 43G 14G 76% /
tmpfs 2.9G 80K 2.9G 1% /dev/shm
/dev/sda1 477M 142M 310M 32% /boot
/dev/mapper/vg_centos6-lv_home
174G 61M 165G 1% /home
空き領域が増えたところで、再度virt-cloneを実行。
でも、状況変わらず。
# virt-clone -o www -n www2 -f /var/kvm/images/www2.img
ERROR ディスクを作成するための十分な空き領域がありません。 30720 MBの要求 > 13898 MBの空き
保存先の/var以下を明示的に容量を増やせば解決か？？
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