[linux-lvm] Freeing space on a LVM for other partitions
Richard Blumel
revslowmo at earthlink.net
Thu Feb 9 05:26:07 UTC 2006
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I currently have this setup on a hw raid 0+1
[root at cranium][pts/2]:~# fdisk -l
Disk /dev/sda: 320.0 GB, 320073629696 bytes
255 heads, 63 sectors/track, 38913 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 3732 29977258+ 7 HPFS/NTFS
/dev/sda2 3860 5076 9775552+ 83 Linux
/dev/sda3 5077 38913 271795702+ 83 Linux
/dev/sda4 3733 3859 1020127+ 5 Extended
/dev/sda5 3733 3859 1020096 82 Linux swap /
Solaris
[root at cranium][pts/2]:~# vgdisplay
--- Volume group ---
VG Name raid01
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 6
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 4
Open LV 4
Max PV 0
Cur PV 1
Act PV 1
VG Size 259.20 GB
PE Size 4.00 MB
Total PE 66356[root at cranium][pts/2]:~# lvdisplay
--- Logical volume ---
LV Name /dev/raid01/usr
VG Name raid01
LV UUID khBZSv-3q6S-OKeX-NHJz-PdC5-FK9C-or6BDb
LV Write Access read/write
LV Status available
# open 1
LV Size 15.00 GB
Current LE 3840
Segments 1
Allocation inherit
Read ahead sectors 0
Block device 254:0
--- Logical volume ---
LV Name /dev/raid01/var
VG Name raid01
LV UUID gxbp4O-pL6I-Ye5o-Yvqp-nrmB-7Q51-8psyn2
LV Write Access read/write
LV Status available
# open 1
LV Size 5.00 GB
Current LE 1280
Segments 1
Allocation inherit
Read ahead sectors 0
Block device 254:1
--- Logical volume ---
LV Name /dev/raid01/tmp
VG Name raid01
LV UUID awX51K-guHb-oAbZ-mvnd-SBg0-YM87-IR5BXQ
LV Write Access read/write
LV Status available
# open 1
LV Size 1.00 GB
Current LE 256
Segments 1
Allocation inherit
Read ahead sectors 0
Block device 254:2
--- Logical volume ---
LV Name /dev/raid01/home
VG Name raid01
LV UUID R6ZBTP-y7LF-1pGl-u1be-lFx4-G31b-qZuCLU
LV Write Access read/write
LV Status available
# open 1
LV Size 208.20 GB
Current LE 53300
Segments 1
Allocation inherit
Read ahead sectors 0
Block device 254:3
Alloc PE / Size 58676 / 229.20 GB
Free PE / Size 7680 / 30.00 GB
VG UUID Md0gWC-47Kj-CAft-W9D8-G420-tzQl-34sMBk
What I want to do is shrink the /dev/sda3 partition which is lvm, not
sure why is says just link but eh. Once shrunk I am going to grow the
ntfs partition which I know how todo. My problem is most of the howto
talk about moving pv to remove pv so forth. I saw one post that said
what I am trying todo is voodoo and dangerous but recommend that to
move the PE towards one edge of the disk us --alloc anywhere however I
have seen other documents that say that is not implemented yet. I hope
I haven't lost you guys but if you know what I should I would be
greatly in your debt.
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