[linux-lvm] free space and no free PE
Antoine
lists at chwing.com
Fri Aug 26 12:31:33 UTC 2005
you're right, I wrongly assumed that PE = space
thanks
Klaus Strebel wrote:
> Antoine schrieb:
>
>> Hi
>>
>> I'm trying to remove a PV from a VG but I'm unable to perform the
>> pvmove because the free PE doesn't match the free space on the VG..
>> at all.
>
> Who do you come to this conlusion??? vgdisplay shows 677 free PE's and
> the only free PE in your PV is 677 on /dev/sdb1. So what???
>
> The free PEs have nothing to do with the df output. You have to shrink
> your filesystem (what might be not possible, not all fs's support
> this) to get as much free PE's as your PV has.
>
> Ex.: You wanna remove /dev/sdb1, shrink your filesystem to (size -
> 16.87 GB, or better less ;-) ), shrink your LV the same way, pvmove
> the extends on the PV, remove the PV from the VG.
>
> Ciao
> Klaus
>
>>
>> check output below, anyone has a clue why ? and how to correct this ?
>>
>> pitch:~# df -h /mnt/test
>> Filesystem Size Used Avail Use% Mounted on
>> /dev/mapper/vg1-test 64G 16G 45G 27% /mnt/test
>> pitch:~#
>> pitch:~#
>> pitch:~# vgdisplay vg1
>> --- Volume group ---
>> VG Name vg1
>> System ID
>> Format lvm2
>> Metadata Areas 3
>> Metadata Sequence No 6
>> VG Access read/write
>> VG Status resizable
>> MAX LV 0
>> Cur LV 1
>> Open LV 1
>> Max PV 0
>> Cur PV 3
>> Act PV 3
>> VG Size 67.64 GB
>> PE Size 4.00 MB
>> Total PE 17317
>> Alloc PE / Size 16640 / 65.00 GB
>> Free PE / Size 677 / 2.64 GB
>> VG UUID V9T0P5-PCML-z92w-GZot-Utlt-7GFF-z83i99
>> pitch:~# pvmove --version
>> LVM version: 2.01.04 (2005-02-09)
>> Library version: 1.01.00-ioctl (2005-01-17)
>> Driver version: 4.1.1
>>
>> pitch:~# pvdisplay
>> --- Physical volume ---
>> PV Name /dev/sda1
>> VG Name vg1
>> PV Size 16.87 GB / not usable 0
>> Allocatable yes (but full)
>> PE Size (KByte) 4096
>> Total PE 4318
>> Free PE 0
>> Allocated PE 4318
>> PV UUID 64vFFO-7kRV-oAYa-6dxH-vLod-XClo-wX3h54
>>
>> --- Physical volume ---
>> PV Name /dev/sdb1
>> VG Name vg1
>> PV Size 16.87 GB / not usable 0
>> Allocatable yes
>> PE Size (KByte) 4096
>> Total PE 4318
>> Free PE 677
>> Allocated PE 3641
>> PV UUID tAGCYo-8wGA-Y1Nr-8d0T-Wn0d-k9PW-Nf5bYj
>>
>> --- Physical volume ---
>> PV Name /dev/sdc1
>> VG Name vg1
>> PV Size 33.91 GB / not usable 0
>> Allocatable yes (but full)
>> PE Size (KByte) 4096
>> Total PE 8681
>> Free PE 0
>> Allocated PE 8681
>> PV UUID ZYn0Lr-rVyB-9geT-pbfN-VQCg-vhcO-kHCYin
>>
>> pitch:~# lvdisplay
>> --- Logical volume ---
>> LV Name /dev/vg1/test
>> VG Name vg1
>> LV UUID Bge5z0-EWMD-vnQs-a08Y-beJR-uyFO-dxg0sj
>> LV Write Access read/write
>> LV Status available
>> # open 1
>> LV Size 65.00 GB
>> Current LE 16640
>> Segments 5
>> Allocation contiguous
>> Read ahead sectors 0
>> Block device 254:1
>
>
>
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