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#1 2014-10-03 12:12:01
redelek - 
Członek DUG
- redelek
- Członek DUG
- Skąd: Warszawa
- Zarejestrowany: 2008-07-17
Lvm backup(snapshot)
Witam,
Wszystkim się podoba i tak go chwalą więc usiadłem. Zainstalowałem sobie środowisko testowe , zrobiłem dwie partycje
Kod:
pvdisplay --- Physical volume --- PV Name /dev/sda5 VG Name di PV Size 9,76 GiB / not usable 2,00 MiB Allocatable yes (but full) PE Size 4,00 MiB Total PE 2498 Free PE 0 Allocated PE 2498 PV UUID
dołączyłem dodatkowy dysk o pojemności 10GB i chcę zrobić snapshot
http://www.tutonics.com/2012/12/lvm-guide-part-2-snapshots.html
Wygląda że to prosta sprawa a mi wywala cały czas
Kod:
lvcreate --size 9,31G -s -n backup /dev/mapper/di-root Rounding up size to full physical extent 9,31 GiB Volume group "di" has insufficient free space (0 extents): 2384 required.
Pozdrawiam
Redelek
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#2 2014-10-03 13:10:56
morfik - Cenzor wirtualnego świata
#3 2014-10-03 13:44:54
redelek - Członek DUG
- redelek
- Członek DUG
- Skąd: Warszawa
- Zarejestrowany: 2008-07-17
Re: Lvm backup(snapshot)
Proszę
Kod:
lvscan ACTIVE '/dev/di/root' [9,31 GiB] inherit ACTIVE '/dev/di/swap_1' [460,00 MiB] inherit lvdisplay --- Logical volume --- LV Path /dev/di/root LV Name root VG Name di LV UUID ASiyE1-SpnO-XPUa-xA2P-JE1T-TcSz-xkZdNl LV Write Access read/write LV Creation host, time di, 2014-09-19 14:35:35 +0200 LV Status available # open 1 LV Size 9,31 GiB Current LE 2383 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 254:0 --- Logical volume --- LV Path /dev/di/swap_1 LV Name swap_1 VG Name di LV UUID LOiCJ3-NP0t-acOv-IMZo-ToMZ-Beyz-qLkdFh LV Write Access read/write LV Creation host, time di, 2014-09-19 14:35:35 +0200 LV Status available # open 2 LV Size 460,00 MiB Current LE 115 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 254:1 pvscan PV /dev/sda5 VG di lvm2 [9,76 GiB / 0 free] Total: 1 [9,76 GiB] / in use: 1 [9,76 GiB] / in no VG: 0 [0 ] pvdisplay --- Physical volume --- PV Name /dev/sda5 VG Name di PV Size 9,76 GiB / not usable 2,00 MiB Allocatable yes (but full) PE Size 4,00 MiB Total PE 2498 Free PE 0 Allocated PE 2498 PV UUID vy7cgs-qgGB-Jkjn-2rZa-aN25-2ylL-Cn2wgg vgscan Reading all physical volumes. This may take a while... Found volume group "di" using metadata type lvm2 vgdisplay --- Volume group --- VG Name di System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 3 VG Access read/write VG Status resizable MAX LV 0 Cur LV 2 Open LV 2 Max PV 0 Cur PV 1 Act PV 1 VG Size 9,76 GiB PE Size 4,00 MiB Total PE 2498 Alloc PE / Size 2498 / 9,76 GiB Free PE / Size 0 / 0 VG UUID fByQFv-0ON3-RMuB-0cVE-XqdQ-vLt5-kCImkU lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 10G 0 disk sda1 8:1 0 243M 0 part /boot sda2 8:2 0 1K 0 part sda5 8:5 0 9,8G 0 part di-root (dm-0) 254:0 0 9,3G 0 lvm / di-swap_1 (dm-1) 254:1 0 460M 0 lvm [SWAP] sdb 8:16 0 8G 0 disk sr0 11:0 1 1024M 0 rom
___
oki dobra nie dodałem sdb do grupy DI. Jak to zrobiłem , snapshot się wykonał
Pozdrawiam
Redelek
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#4 2014-10-03 14:17:29
morfik - Cenzor wirtualnego świata
#5 2014-10-03 14:31:10
qluk - Pan inż. Cyc
- qluk
- Pan inż. Cyc
- Skąd: Katowice
- Zarejestrowany: 2006-05-22
Re: Lvm backup(snapshot)
A tak ładnie błąd podał że nie ma gdzie zrobić tej migawki ;)
SWAP to raczej na fizycznym urządzeniu. A do czasu utrwalenia jak to jest z LVM to polecam zawsze posiadać jakiś piktogram pod ręką np. taki (losowo wybrany)
[img]http://polach.cc/wp-content/uploads/2010/09/lvm_schema.jpg[/img]
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