Installing a 2 U Controller Enclosure

Prerequisites

The following installation tools and materials are ready:

• 2 U installation template (available in the accessory box)
• Marker

Context

• To facilitate the operation and maintenance of a controller enclosure, you are advised to install a controller enclosure between the 19 U and the 24 U in a bay or cabinet. This section uses the recommended installation positions in a 42 U cabinet as an example. You can plan device positions based on site requirements.
• Below the controller enclosure, reserve a 2 U space for installing a cable tray and facilitating the removal and insertion of interface modules.
• You are advised to keep a 1 U (44.45 mm) space between storage devices. If the space is limited, form groups of five disk enclosures, and reserve at least a 1 U space between groups within the same cabinet to facilitate management and mitigate vibration transfer.
• You are advised to reserve a 2 U space at the bottom of the cabinet to facilitate cabling, ventilation, heat dissipation, and maintenance of the devices located in the lower part of the cabinet.

Procedure

1. Locate device positions in a cabinet.

   Each three square holes correspond to 1 U height. Each 1 U height is lined out with a scale mark. If no 1 U scale mark is lined out on the front and rear columns of the cabinet, line out scale marks to facilitate locating installation positions.

2. Align the bottom of the installation template with the integer U scale mark on the mounting bars of the cabinet, as shown in Figure 10-6.
   Figure 10-6 Determining the installation position of a 2 U device
   

3. Use a marker to mark the positions of the screw holes where the device will be fastened on the mounting bars. The installation position of the controller enclosure is determined.

Prerequisites

The following installation tools and materials are ready:

• Phillips screwdriver (M3 to M6)
• Marker
• M6 screws
• Square-hole positioning pin (for square installation holes)
• Round-hole positioning pin (for round installation holes)
• (Optional) U-shaped brackets

  The distance between the front mounting bar and the inner side of the front door varies according to the cabinet type. Since the system enclosure needs to be fixed on the front mounting rails, a longer distance between the front mounting rails and the inner side of the front door can result in smaller space for cabling at the rear of the device. In such a case, you can install U-shaped brackets to move the system enclosure forward and leave more space at the rear of the device for cabling. For details, see Cabinet Space Planning in Installation Guide.

Precautions

• Storage devices must be installed on guide rails. Stacking devices may cause damage.
• The guide rails must be installed horizontally.

To ensure that an adjustable guide rail can be installed horizontally, it is recommended that you mark both front and rear columns where the adjustable guide rail is to be secured before installation.

Context

• If possible, start the installation from the bottom-most allowed space in your cabinet.
• A pair of adjustable guide rails must be installed for each storage device.
• The adjustable guide rails can be extended from 600 mm (23.62 in.) to 900 mm (35.46 in.).
• The square-hole positioning pins have been installed on the adjustable guide rails before delivery. If the installation holes for the screws are round, change the square-hole positioning pins to round-hole positioning pins before installing the adjustable guide rails.

You can find the round-hole positioning pins in the accessory bag delivered with the storage device.

The following describes how to install the adjustable guide rails (using the square-hole positioning pins as an example).

Procedure

1. On the front of the cabinet, align the bottom edge of the adjustable guide rail with the U scale on the front mounting bar, and fully insert the front positioning pins into the square holes.
2. Stretch the adjustable guide rail and insert the rear positioning pins into the square holes on the rear mounting bar.
3. Secure the adjustable guide rail.
   • Scenario where U-shaped brackets are not used
     Use M6 screws to secure the adjustable guide rail, as shown in Figure 10-7.

     When securing an adjustable guide rail, attach one M6 screw to the specified position at the front side of the rail, as shown in Figure 10-7. Using extra M6 screws or attaching the screw to other positions will cause collision with the device, resulting in device damage.

     Figure 10-7 Securing the adjustable guide rail
     
   • Scenario where U-shaped brackets are used
     Align U-shaped brackets with adjustable guide rails, and use M6 screws to secure them, as shown in Figure 10-8.

     Figure 10-8 Securing U-shaped brackets and adjustable guide rails
     

Prerequisites

The adjustable guide rails have been properly installed.

The following installation tools and materials are available and ready for use:

• M6 screws
• Phillips screwdriver (M3 to M6)

Precautions

• At least three people are required to carry and install an enclosure. To avoid personal injury or damage to the device, do not attempt to lift or install the enclosure without the proper number of personnel.
• If you remove controllers and disks to facilitate the movement and installation of the device, record the mapping between each component and its slot in advance, so you can easily insert each component back to its correct slot. If a controller is inserted into a different location, a system power-on failure may occur.
• Install storage devices on adjustable guide rails. Stacking devices may damage them.

Procedure

1. Slide the device into the cabinet and use M6 screws to secure it to the cabinet, as shown in Figure 10-9.
   Figure 10-9 Installing a device into a cabinet
   

2. Check that the controller enclosure is horizontally installed and tightly screwed in.