From: Cuc Nguyen [mailto:cucngu AT us.ibm DOT com]
Hi Mark, 
A while back, I saw you posted to adsm-L a question regarding 3592 dual-port 
drives... I have some questions regarding its use, hope you can help: 
1. with dual-port, how does TSM know which path to use? do you have to 
configure a path as primary/secondary? 
2. assuming each port is connected/zoned for separate SAN fabrics, does that 
mean TSM is smart enough to fail over to another port if there any issue 
relating to the primary port? assuming there's a way that TSM is aware which 
port to use as primary and which as secondary. 

 
I don't normally answer personal questions stemming from adsm-l postings, but 
this is asked frequently. Please address such questions directly to the list, 
please.
 
TSM doesn't make those decisions; the OS does. So if your OS supports dual-port 
connections, TSM will use whatever port the OS dictates.
 
-- 
Mark Stapleton (mark.s AT evolvingsol DOT com <mailto:mark.s AT evolvingsol DOT 
com> ) 
Senior consultant