[root@localhost ~] vgdisplay
--- Volume group ---
VG Name vg_root
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 7
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 3
Open LV 0
Max PV 0
Cur PV 1
Act PV 1
VG Size 297,59 GiB
PE Size 4,00 MiB
Total PE 76182
Alloc PE / Size 59392 / 232,00 GiB
Free PE / Size 16790 / 65,59 GiB
VG UUID XXXXXXXXXX
PV:
[root@localhost ~] pvdisplay
--- Physical volume ---
PV Name /dev/mapper/udisks-luks-uuid-ASDFASDF
VG Name vg_root
PV Size 297,59 GiB / not usable 2,00 MiB
Allocatable yes
PE Size 4,00 MiB
Total PE 76182
Free PE 16790
Allocated PE 59392
PV UUID YYYYYYYYYYY
Quindi ho un VG con 65 GByte di spazio libero. Ma quando voglio ridurre questo gruppo di volumi di circa 50 GByte:
pvresize -tv --setphysicalvolumesize 247G /dev/mapper/udisks-luks-uuid-ASDFASDF
Test mode: Metadata will NOT be updated and volumes will not be (de)activated.
Using physical volume(s) on command line
Test mode: Skipping archiving of volume group.
/dev/mapper/udisks-luks-uuid-ASDFASDF: Pretending size is 517996544 not 624087040 sectors.
Resizing volume "/dev/mapper/udisks-luks-uuid-ASDFASDF" to 624087040 sectors.
Resizing physical volume /dev/mapper/udisks-luks-uuid-ASDFASDF from 0 to 63231 extents.
/dev/mapper/udisks-luks-uuid-ASDFASDF: cannot resize to 63231 extents as later ones are allocated.
0 physical volume(s) resized / 1 physical volume(s) not resized
Test mode: Wiping internal cache
Wiping internal VG cache
Quindi il messaggio di errore è:
cannot resize to 63231 extents as later ones are allocated.
D: Come posso deframmentare vg_root in modo da poterne rimuovere la parte non necessaria?
ps: ho già scoperto che ho solo bisogno di ridimensionare il PV per ridimensionare il VG, o ci sono comandi migliori per fare il ridimensionamento del VG (es .: cosa posso fare se volessi diversi VG su un PV? ... )?
sudo pvmove --alloc anywhere /dev/sdX2:60000-76182 /dev/sdX2:3000-19182