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Unable to Remove LVM Snapshot - “Logical volume XYZ contains a filesystem in use."
in Linux
Applies to:
Oracle Cloud Infrastructure - Version N/A and later
Linux x86-64
Symptoms:
Unable to remove a LVM snapshot volume and it reports following error:
# lvremove /dev/VGExaDb/LVDbVar1Snap Logical volume VGExaDb/LVDbVar1Snap contains a filesystem in use.
Also lsof reports no open files:
# lsof /dev/VGExaDb/LVDbVar1Snap
Cause:
The LVM snapshot volume is in use by some process(es) (backup/third party application in this case).
This can be verified with the “fuser” command.
Example: - tar processes are using the snapshot volume
# fuser -muv /dev/VGExaDb/LVDbVar1Snap USER PID ACCESS COMMAND /dev/dm-22: root 379966 ..c.. (root)bash root 379969 f.c.. (root)tar root 379970 ..c.. (root)tar root 379971 ..c.. (root)bash root 379974 ..c.. (root)tar root 379975 ..c.. (root)tar
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