InfoDoc ID   Synopsis   Date
19253   Setting up a A3x00 in an independant controller configuration   4 Jun 1999

Status Issued

Description
Setting up a A3x00 in an independant controller configuration.

	1) Install the Raid Manager software, along with the patches 
	   on both systems.

	2) Connect the A3x00 to one system to configure the luns to 
	   go over the controllers you want them to.

	3) Edit the /etc/osa/rmparams files on each system to disable 
	   RDAC failover.
		Change this line from FALSE to Rdac_SupportDisabled=TRUE
		This line is towards the bottom of the file.

	4) Run the following 'storutil' on the first system to let it
	   know you are  going to run independant controller configuration.

		storutil -c <raid module specifier> -i on

	5) Shutdown the systems and hook up one cable from each system 
	   to a controller port.

	6) Run the same 'storutil' command on on the second system so
	   that will also run independant controller configuration.

	7) Now the luns you configured on each controller will only be 
	   seen from each the system connect to that controller. 

NOTE: By configuring the A3x00 this way, you will no longer have the 
redundancy of the controllers ability to failover luns.  Please be 
aware of this major limitation prior to setting this up.

====================================================================
From the man page for storutil
SYNOPSIS
     storutil  -c <raid module specifier>
               [ -w clear host store ]
               [ -n <new module name> change module name ]
               [ -i <on | off> independent controller setting ]
               [ -d display information from host store ]
               [ -? display usage information ]
 
     -i   This option will set the independent controller setting
          in  the  Host  Store. "on" specifies that the module is
          configured for independent controllers.   "off"  speci-
          fies  that the module is not configured for independent
          controllers.
SUBMITTER: Mark Reid APPLIES TO: Hardware/Disk Storage Subsystem/StorEdge Disk Array/StorEdge A3000, Storage/RAID Manager, AFO Vertical Team Docs/Storage ATTACHMENTS:


Copyright (c) 1997-2003 Sun Microsystems, Inc.