Public bug reported:
After setting auto extend threshold and rebooting, lvm snapshots are not
being auto extended.
Steps to recreate:
1. Using Ubuntu 14.04 LTS
2. Set snapshot_autoextend_threshold to less than 100
# grep autoext /etc/lvm/lvm.conf
snapshot_autoextend_threshold = 50
snapshot_autoextend_percent = 20
3. Reboot server to have lvm reread lvm.conf
4. Create a snapshot of a mounted logical volume
# lvcreate -s /dev/testVG/testLV -L 1G -n testLVsnap
5. Make modifications to mounted logical volume
6. List logical volumes and snapshots
# lvs
LV VG Attr LSize Pool Origin Data% Move Log Copy% Convert
testLV testVG owi-aos-- 10.00g
testLVsnap testVG swi-a-s-- 1.00g testLV 95.04
What I expected to have happened:
Once Data% of snapshot reached the snapshot_autoextend_threshold, the snapshot
logical volume should have been auto extended.
** Affects: lvm2 (Ubuntu)
Importance: Undecided
Status: New
** Tags: lvm snapshot
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https://bugs.launchpad.net/bugs/1424114
Title:
lvm snapshot is not being autoextended
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