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### To Add an Expansion Unit to an Array

Note - Depending on the current state of the selected array, the Add Expansion or Remove Expansion buttons might be disabled. For example, you cannot add more trays in a 2x6 configuration.

1. Click General at the Administration page.
2. Click the array Name link in the table in the Array Power Management section.

The Array Details and Reconfiguration page is displayed.

3. Click the Add Expansion button.

The Add Expansion Unit wizard window is displayed.

- The wizard detects if any active jobs are running.
- If active jobs are running, wait until the jobs are completed before you click the Next button.

Caution - You cannot cancel this operation if you click the Next button in this wizard window. Click Cancel to cancel the procedure.

4. Click the Next button.

This step begins the array "unconfiguration" procedure. The wizard shows the following operations being performed:

- Place any existing storage pools in the offline state
- Disable the tray alternate master controller and unconfigure the controller (if necessary; this step is skipped if the controller is already disabled or if the controller is the only controller, as in a 1x1 configuration)
- Shut down the array

When the operations are completed, the wizard instructs you to click Next to view a summary of instructions to physically add the expansion units.

Note - The Sun StorEdge 6020 and 6120 Arrays System Manual contains more details about physically adding and removing expansion units and other array configuration changes. Please read the array configuration chapter in this manual before attempting this procedure. Note that the Sun StorEdge 6300 system does not allow access by telnet. The wizards described in this help perform the underlying software commands needed to add or remove expansion units.

The instructions shown in the wizard are as follows:

- Turn off power by pressing the power rocker switches on each array power and cooling unit (PCU)
- Remove all power cords from all enclosures in the original configuration
- Verify all LEDs are off before proceeding
- Disconnect loop card cables
- Add the new expansion units
- Move the controller board from the former alternate master enclosure to the enclosure above it.
- If the new configuration is 2x4, the controller board should be on the first and third enclosure from the bottom. If the new configuration is 2x6, the controller board should be on the first and fourth enclosure from the bottom. Do not move the tray, move only the controller board.
- Connect the loop card, Ethernet, and host cables
- Connect power cords to all enclosures
- Power on the array
- Once the array is powered on and all LEDs are lighted, click the Next button to perform verification of the new configuration

5. Click the Next button when the array is powered on and all LEDs are lighted.

The wizard window refreshes as the array is detected. This process might take up to 20 minutes. If the wizard times out, re-check the array installation.

When the software detects the array, the wizard window displays a confirmation message that the array is available and shows a link to the Storage Automated Diagnostic Environment software (if installed).

6. (Optional) Select the Online Existing Pools to place the existing storage pools online.
7. Click the Finish Wizard button.

Note - You can use the Storage Automated Diagnostic Environment software (if installed) to perform an array test such as 6120volverify after adding expansion units. See the 6120volverify(1M) man page for command information.

8. If desired, configure the array.

You might want to create storage pools, volumes, permissions, and other features. See the following:

- Configuring An Array
- Express Array Configuration
- Custom Array Configuration