LVM2 Snapshot Creation/Removal EXTREMELY slow

Solution Verified - Updated -

Issue

  • lvcreate and lvremove are taking extremely long during LVM snapshot volume create/remove
$ time lvcreate -s -L20GB -nTEST /dev/vgprod/lvdlx2
  Logical volume "TEST" created
 
real    5m12.720s
user    5m5.013s
sys     0m1.681s
 
$ time lvremove /dev/vgprod/TEST
Do you really want to remove active logical volume TEST? [y/n]: y
  Logical volume "TEST" successfully removed
 
real    5m25.947s
user    5m7.227s
sys     0m1.332s

Environment

  • Red Hat Enterprise Linux 5.7

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