my $snapvol = "snap_${volname}_$snapname";
my $cmd = ['/sbin/lvchange', '-ay', '-K', "$vg/$snapvol"];
run_command($cmd, errmsg => "activate_volume '$vg/$snapvol' error");
my $snapvol = "snap_${volname}_$snapname";
my $cmd = ['/sbin/lvchange', '-ay', '-K', "$vg/$snapvol"];
run_command($cmd, errmsg => "activate_volume '$vg/$snapvol' error");