Reclaim free space
How do I reclaim the free space when a logical volume is reduced? I am using a volume group on one physical volume and three logical volumes.
I wanted to split off /usr/local and give it some space from reducing another volume. I shrank the existing logical volume with "ext2fsadm".
After, the volume group had the same amount of free space as before.
I went ahead and created the new LV in that free space but would like to make it bigger. Now "vgdisplay" shows the volume group as being completely full. Except the allocated space for the logical volumes are less than the total space.
- Ian
Quoted 2 lines · Ian Burrell
How do I reclaim the free space when a logical volume is reduced? I am using a volume group on one physical volume and three logical volumes.
I figured out my problem. I had a test logical volume that was taking up the space. I removed it and everything is working fine.
- Ian
Quoted 5 lines · Ian Burrell
How do I reclaim the free space when a logical volume is reduced? I am using a volume group on one physical volume and three logical volumes.
I wanted to split off
/usr/localand give it some space from reducing another volume. I shrank the existing logical volume with "ext2fsadm".
After, the volume group had the same amount of free space as before. I
went ahead and created the new LV in that free space but would like to make it bigger. Now "vgdisplay" shows the volume group as being completely full. Except the allocated space for the logical volumes are less than the total space.
1. Shrink the filesystem (sounds like you've done this).
2. Shrink the lv (lvreduce)... be careful!!
3. Expand the filesystem to fill any gap (error) in the lvreduce.
Quoted 5 lines · Ian Burrell
How do I reclaim the free space when a logical volume is reduced? I am using a volume group on one physical volume and three logical volumes.
I wanted to split off
/usr/localand give it some space from reducing another volume. I shrank the existing logical volume with "ext2fsadm".
Hi Ian,
did e2fsadm display some error ?
That would explain that you didn't get more free space in the VG, because the LV won't be reduced in that case.
I guess with 'allocated space' you mean the sum of the filesystem space. Check with "tune2fs -l ..." what the actual filesystem sizes are and how that fits the LV sizses (vgdisplay -v / lvdisplay -v /dev/VG/LV).
Quoted 15 lines
After, the volume group had the same amount of free space as before.
I went ahead and created the new LV in that free space but would like to make it bigger. Now "vgdisplay" shows the volume group as being completely full. Except the allocated space for the logical volumes are less than the total space.- Ian
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Signature · 15 lines
Regards,
Heinz -- The LVM Guy --
*** Software bugs are stupid.
Nevertheless it needs not so stupid people to solve them ***
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