Step 1: Preparing to add the disk shelf

Disable negotiated failover in your cluster by entering the following command from the node console:

cf nfo disable disk_shelf

Install the new disk shelf in your equipment rack, as described in the DiskShelf14 and DiskShelf14mk2 FC Hardware Guide.

Ground the new disk shelf, then give the disk shelf a unique shelf ID.

Verify that the new disk shelf ID is unique by entering the following command:

fcstat device_map

Result

Shelf ID's for all Fibre Channel devices are listed.

If disk shelves in the loop to which you are adding the new disk shelf have...

Then, for loops with...

LRCs

• DS14 only: Go to Step 6.
• A mix of DS14 and DS14mk2 FC: Set the loop speed to 1Gb.

  Caution
  An incorrectly set loop speed results in an open loop condition.

ESHs

• DS14 only or a mix of DS14 and DS14mk2 FC: Set the loop speed to 1 Gb.
• DS14mk2 FC only that are running at 1 Gb: Set the loop speed to 1 Gb.
• DS14mk2 FC only that are running at 2 Gb: Set the loop speed to 2 Gb.

  Caution
  An incorrectly set loop speed causes the storage appliance to panic.

Plug in the new disk shelf and turn it on.

Go to Step 2: Cabling the new disk shelf.