Huge ASM LMHB Trace File Size

The ASM LMHB trace file is huge in 12.1.0.2 GI environment.

$cd /u01/app/grid/diag/asm/+asm/+ASM1/trace
$ ls -ltr *lmhb*
-rw-r----- 1 grid oinstall 11551946219 Jan 8 16:59 +ASM1_lmhb_88049.trc

According to (Doc ID 2137683.1), it is a known bug, which is fixed in 12cR2 GI.

Or

Apply one-off Patch 20878790.

Or

Just empty the trace file periodically by :

$ cat /dev/null>+ASM1_lmhb_88049.trc

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