Global Atomic Broadcast (GAB) is one of the protocols that are used by Veritas Cluster Server to transmit heartbeats. When Event ID 18 is reported by GAB, the actual message is contained in the Data field.

For Example:

0000: 00 00 3c 00 01 00 88 00 ..<...ˆ.
0008: 00 00 00 00 12 00 07 40 .......@
0010: 04 00 00 00 00 00 00 00 ........
0018: 00 00 00 00 00 00 00 00 ........
0020: 00 00 00 00 00 00 00 00 ........
0028: 47 41 42 20 57 41 52 4e GAB WARN
0030: 49 4e 47 20 56 2d 31 35 ING V-15
0038: 2d 31 2d 32 30 30 35 37 -1-20057
0040: 20 50 6f 72 74 20 68 20 Port h
0048: 70 72 6f 63 65 73 73 20 process
0050: 31 20 69 6e 61 63 74 69 1 inacti
0058: 76 65 20 37 20 73 65 63 ve 7 sec
0060: 0a 00 00 00 ....


Notice the message "GAB WARNING V-15-1-20057 Port h process 1 inactive 7 sec."

Other common messages include the following:

GAB WARNING V-15-1-20058 Port h process 1: heart beat failed, killing process....
GAB INFO V-15-1-20059 Port h heartbeat interval 15000 msec. Statistics:.
GAB INFO V-15-1-20129 Port h: heartbeats in 0 ~ 3000 mse c: 9584.
GAB INFO V-15-1-20129 Port h: heartbeats in 3000 ~ 6000 msec: 0.
GAB INFO V-15-1-20129 Port h: heartbeats in 6000 ~ 9000 msec: 0.
GAB INFO V-15-1-20129 Port h: heartbeats in 9000 ~ 12000 msec: 0
GAB INFO V-15-1-20129 Port h: heartbeats in 12000 ~ 15000 msec: 0.
GAB INFO V-15-1-20041 Port h: client process failure: killing process...
GAB INFO V-15-1-20032 Port h closed.