Installing a 4 U Disk Enclosure

Prerequisites

The following installation tools and materials are ready:

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

Context

The space occupied by devices and installation positions of floating nuts are specified in the installation templates, which can help you locate the installation positions.

You are advised to install disk enclosures from the bottom up in descending order of weight (heaviest enclosures at the bottom and the lightest at the top).

Procedure

1. Align the bottom of the installation template with the integer U mark on the mounting bar of the cabinet, as shown in Figure 8-38.
   Figure 8-38 Determining the installation positions of 4 U SAS disk enclosures
   

2. Follow the instructions on the installation template to insert the mounting ear of the installation template into the mounting bar to fasten the installation template.

   The installation template can be regarded as the front panel of the device. The holes on the installation template mark the positions where the screws of a 4 U SAS disk enclosure will be fastened.

3. Use a marker to mark the positions of the screw holes where a device will be fastened on the mounting bar. The installation position of the disk 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 8-39.

     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 8-39. Using extra M6 screws or attaching the screw to other positions will cause collision with the device, resulting in device damage.

     Figure 8-39 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 8-40.

     Figure 8-40 Securing U-shaped brackets and adjustable guide rails
     

Prerequisites

• The installation environment meets requirements.
• The adjustable guide rails have been installed properly.
• The following installation tools and materials are ready:
  • 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 disks to facilitate the movement and installation of the device, record the mapping between each disk and its slot in advance, so you can easily insert each disk back into its correct slot.
• Storage devices must be installed on adjustable guide rails. Stacking devices may damage them.
• Before you install disk modules, install the 4 U disk enclosure into the cabinet.

Procedure

1. Slide the disk enclosure into the cabinet and use M6 screws to secure it to the cabinet, as shown in Figure 8-41.
   Figure 8-41 Installing a disk enclosure into a cabinet
   

2. Check that the disk enclosure is horizontally installed and tightly screwed in.
3. If more than one disk enclosure is configured, repeat the preceding steps to install the other disk enclosures.