What do the port letters mean when running gabconfig -a in Veritas InfoScale and Storage Foundation?

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Article ID: 100034056

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Description

Port Descriptions

Port Function
a GAB heartbeat membership
b I/O fencing (designed to guarantee data integrity)
c Used for Fast-Failover operation for VMDg resources/Diskgroup in VCS (on Windows)
d ODM (Oracle Disk Manager)
f CFS (Cluster File System)
h Veritas Cluster Server communication between GAB and High Availability Daemon (HAD)
m  Group Lock Manager (GLM) communication for SmartIO VxVM cache coherency.
o VCSMM driver (kernel module needed for Oracle and VCS interface)
q QuickLog daemon
u Cluster Volume Manager (CVM) port for redirecting commands from CVM slaves to CVM master
y Cluster Volume Manager (CVM) port for I/O shipping
v CVM (Cluster Volume Manager)
w Cluster Volume Manager daemons on different nodes communicate with one another using this port, but receive cluster membership information through GAB (port v)

Resolution

Here is an example of the output of gabconfig -a. The specific ports listed will depend on the configuration and specific version of the product.
 

# gabconfig -a GAB Port Memberships
===============================================================
Port a gen 967901 membership 01
Port b gen 967902 membership 01
Port c gen 967903 membership 01
Port d gen 967905 membership 01
Port f gen 967910 membership 01
Port h gen 967904 membership 01
Port m gen 967907 membership 01
Port u gen 96790e membership 01
Port v gen 967909 membership 01
Port w gen 96790b membership 01
Port y gen 967908 membership 01

 

Issue/Introduction

The gabconfig -a command returns a list of "ports," as well as the node on which they are running. This article contains a brief description of these ports.
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