Connecting disk shelves to a FAS270c

Put on the antistatic wrist strap and grounding leash.

Make sure that both power supplies on the appliance and disk shelves are turned off.

At the rear of your FAS270c, confirm that the terminate switches on both CPU modules are set to Off.

Confirm that the FAS270c shelf ID is set to 1.

See Step 7 and Step 8 of Connecting a clustered FAS270c for additional details.

Connect the blue Fibre Channel port on Node B to the disk shelf LRC B module Input port of your second disk shelf. Connect the blue Fibre Channel port on Node A to the LRC A module Input port of the same disk shelf. Make sure that the cables on the disk shelf are tight.

Caution
Do not use ESH modules in place of LRC modules. The FAS270/270c is not designed for use with ESH modules.

Attach the grounding cable between shelves, as shown in the preceding illustration.

Set the disk shelf ID switch on your second disk shelf to 2.

Set the disk shelf loop speed to 1 Gb.

If...

Then...

This is the only disk shelf you are adding to your system

Set the terminate switch on both LRC modules to On, and proceed to Connecting your appliance to a power source.

Then proceed to Configuring for a cluster.

You are adding another disk shelf

Set the terminate switch on both LRC modules to Off, and proceed to Step 8.

Cable the disk shelf LRC B module Output port of your second disk shelf to the LRC B module Input port of your third disk shelf. Cable the disk shelf LRC A module Output port of your second disk shelf to the LRC A module Input port of your third disk shelf. Make sure that the cable connections on both disk shelves are tight.

Attach the grounding cable between shelves, as shown in the preceding illustration.

Set the disk shelf ID switch on your third disk shelf to 3.

Set the disk shelf loop speed to 1 Gb.

Set the terminate switch on the third disk shelf to On, and turn on your appliance and disk shelves. Then proceed to Configuring for a cluster.

Note
For more information about connecting power to your appliance and disk shelves, see Connecting your appliance to a power source.