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Chapter 4. Second Controller Option
EK–SMCPQ–UG. C01 4-13
14.
You have now created one Virtual Device (JBOD) on the top controller. Discon-
nect the serial cable from the top controller and reconnect the cable to serial port
connector on the bottom (redundant) controller.
15.
Close and reopen the StorageWorks window and repeat steps 4 through 13 above
(Note: If the storage window connection is lost when the cable is moved, reopen
the HSZ22 StorageWindow).
16.
Once the second “Virtual Disk” has been created, close the StorageWorks win-
dow.
17.
To complete dual-controller configuration, perform the following.
•
Ensure all cables and connections to your server are in place
•
Leave the RA3000 Rack Mount Storage System powered on
•
Reboot the server
Refer to your Getting Started Guide to configure the virtual disks as communications
LUNs.
4.3.3 Connecting to Your Dual Controller Storage System
1.
Open the StorageWorks management utility.
2.
Refer to the Getting Started Guide for instructions describing how to connect the
RA3000 to your host system.
4.3.4 Verifying the Controller Operating Parameters
For optimal dual- controller performance and load balancing, the host ports should be
configured as listed below. Verify these parameters from the “Controller Properties”
page:
•
Host I/O channel 0 for Controller 1 (top) to Active
•
Host I/O channel 1 for Controller 1 to Passive
•
Channel 0 Target ID for Controller 1 to 0
•
Channel 1 Target ID for Controller 2 to 1
NOTE
It is allowable to configure the host I/O and target IDs
as follows:
Controller 1 (top) may be set to “Passive” while host
I/O channel 1 for Controller 1 is set to “Active”. As long
as each host channel value and channel target ID
value is unique, the system is correctly configured for
Active/Active mode.