From: Jeff Barratt (jbarratt@COMPSAT.COM)
Date: Tue Apr 15 2003 - 22:51:19 EDT
you may have difficulties with SDD if you are replacing a switch that is
directly attached to the HBAs on the p660 side as the vpath is based on the
PortID/CorePID of the switch, and the CoredPID of the new switch may not
necessarily be the same as the corePID of the old switch. If you have built
redundant fabrics(no ISLs), and are able to remove paths (1/2 at a time
(AIX)via datapath set adapter) then you are in good shape. also if you have
the luxury of shutting down all attached machines when you replace the
switch, you can just remove all fibre attached vpaths and hdisks and rebuild
them. Without this luxury, proceeed at your own risk. I can provide some
more info offline if you would like.
-----Original Message-----
From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU]On Behalf Of
Anthony F. Fiore
Sent: Tuesday, April 15, 2003 10:22 AM
To: aix-l@Princeton.EDU
Subject: Switching the SAN switches.
Good Day,
We will soon be moving from one SAN switch to another which is
attached to a few p660-6H1's on one side of the fabric and an ESS-F20 on
the other. The 660's have FC 6227 adapters in them. If we're just
replacing the SAN switch and not the Shark, or the Host...does anyone
know of any gotcha's when replacing SAN switches?
TIA..
-- Anthony Fiore System Administrator ITS Operations and Production Services New York University anthony.fiore@nyu.edu
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