Installing or replacing a 5U expansion enclosure in a rack

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Use the following procedure to place a 5U expansion enclosure in a rack during the installation process. To complete some service tasks, you might also need to slide the enclosure back in to the rack.

Before you begin

DANGER
Multiple power cords. The product might be equipped with multiple power cords. To remove all hazardous voltages, disconnect all power cords. (L003)
Safety icons for multiple power cords

Use the reference numbers in parentheses at the end of each notice (for example, D005) to find the matching translated notice in IBM Systems Safety Notices.

DANGER
Observe the following precautions when working on or around your IT rack system:
  • Heavy equipment–personal injury or equipment damage might result if mishandled.
  • Always lower the leveling pads on the rack cabinet.
  • Always install stabilizer brackets on the rack cabinet.
  • To avoid hazardous conditions due to uneven mechanical loading, always install the heaviest devices in the bottom of the rack cabinet. Always install servers and optional devices starting from the bottom of the rack cabinet.
  • Rack-mounted devices are not to be used as shelves or work spaces. Do not place objects on top of rack-mounted devices.
    An unstable rack with a shelf with an object on it
  • Each rack cabinet might have more than one power cord. Be sure to disconnect all power cords in the rack cabinet when directed to disconnect power during servicing.
  • Connect all devices installed in a rack cabinet to power devices installed in the same rack cabinet. Do not plug a power cord from a device installed in one rack cabinet into a power device installed in a different rack cabinet.
  • An electrical outlet that is not correctly wired could place hazardous voltage on the metal parts of the system or the devices that attach to the system. It is the responsibility of the customer to ensure that the outlet is correctly wired and grounded to prevent an electrical shock. (R001 part 1 of 2)
CAUTION:
  • Do not install a unit in a rack where the internal rack ambient temperatures will exceed the manufacturer's recommended ambient temperature for all your rack-mounted devices.
  • Do not install a unit in a rack where the air flow is compromised. Ensure that air flow is not blocked or reduced on any side, front, or back of a unit used for air flow through the unit.
  • Consideration should be given to the connection of the equipment to the supply circuit so that overloading of the circuits does not compromise the supply wiring or overcurrent protection. To provide the correct power connection to a rack, refer to the rating labels located on the equipment in the rack to determine the total power requirement of the supply circuit.
  • (For sliding drawers) Do not pull out or install any drawer or feature if the rack stabilizer brackets are not attached to the rack. Do not pull out more than one drawer at a time. The rack might become unstable if you pull out more than one drawer at a time.
  • (For fixed drawers) This drawer is a fixed drawer and must not be moved for servicing unless specified by the manufacturer. Attempting to move the drawer partially or completely out of the rack might cause the rack to become unstable or cause the drawer to fall out of the rack. (R001 part 2 of 2)
CAUTION:
Removing components from the upper positions in the rack cabinet improves rack stability during a relocation. Follow these general guidelines whenever you relocate a populated rack cabinet within a room or building.
  • Reduce the weight of the rack cabinet by removing equipment starting at the top of the rack cabinet. When possible, restore the rack cabinet to the configuration of the rack cabinet as you received it. If this configuration is not known, you must observe the following precautions.
    • Remove all devices in the 32U position and above.
    • Ensure that the heaviest devices are installed in the bottom of the rack cabinet.
    • Ensure that there are no empty U-levels between devices installed in the rack cabinet below the 32U level.
  • If the rack cabinet you are relocating is part of a suite of rack cabinets, detach the rack cabinet from the suite.
  • If the rack cabinet you are relocating was supplied with removable outriggers they must be reinstalled before the cabinet is relocated.
  • Inspect the route that you plan to take to eliminate potential hazards.
  • Verify that the route that you choose can support the weight of the loaded rack cabinet. Refer to the documentation that comes with your rack cabinet for the weight of a loaded rack cabinet.
  • Verify that all door openings are at least 760 x 230 mm (30 x 80 in.).
  • Ensure that all devices, shelves, drawers, doors, and cables are secure.
  • Ensure that the four leveling pads are raised to their highest position.
  • Ensure that there is no stabilizer bracket installed on the rack cabinet during movement.
  • Do not use a ramp inclined at more than 10 degrees.
  • When the rack cabinet is in the new location, complete the following steps:
    • Lower the four leveling pads.
    • Install stabilizer brackets on the rack cabinet.
    • If you removed any devices from the rack cabinet, repopulate the rack cabinet from the lowest position to the highest position.
  • If a long-distance relocation is required, restore the rack cabinet to the configuration of the rack cabinet as you received it. Pack the rack cabinet in the original packaging material, or equivalent. Also lower the leveling pads to raise the casters off the pallet and bolt the rack cabinet to the pallet. (R002)
DANGER
Racks with a total weight of > 227 kg (500 lb.), Use Only Professional Movers! (R003)
DANGER
Do not transport the rack via fork truck unless it is properly packaged, secured on top of the supplied pallet. (R004)
DANGER
Protective Earth (Ground) symbol in circle
Main Protective Earth (Ground):

This symbol is marked on the frame of the rack.

The PROTECTIVE EARTHING CONDUCTORS should be terminated at that point. A recognized or certified closed loop connector (ring terminal) should be used and secured to the frame with a lock washer using a bolt or stud. The connector should be properly sized to be suitable for the bolt or stud, the locking washer, the rating for the conducting wire used, and the considered rating of the breaker. The intent is to ensure the frame is electrically bonded to the PROTECTIVE EARTHING CONDUCTORS. The hole that the bolt or stud goes into where the terminal conductor and the lock washer contact should be free of any non-conductive material to allow for metal to metal contact. All PROTECTIVE EARTHING CONDUCTORS should terminate at this main protective earthing terminal or at points marked with Protective Earth (Ground) symbol . (R010)

CAUTION:
Two of three graphics depict a heavy box being carried by three persons; the other graphic depicts an icon of a lifting device and a text label that the part or unit weighs more than 55 kg (121.2 lb)
The weight of this part or unit is more than 55 kg (121.2 lb). It takes specially trained persons, a lifting device, or both to safely lift this part or unit. (C011)
CAUTION:
To avoid personal injury, before lifting this unit, remove all appropriate subassemblies per instructions to reduce the system weight. (C012)
CAUTION:
CAUTION regarding IBM provided VENDOR LIFT TOOL:
  • Operation of LIFT TOOL by authorized personnel only
  • LIFT TOOL intended for use to assist, lift, install, remove units (load) up into rack elevations. It is not to be used loaded transporting over major ramps nor as a replacement for such designated tools like pallet jacks, walkies, fork trucks and such related relocation practices. When this is not practicable, specially trained persons or services must be used (for instance, riggers or movers). Read and completely understand the contents of LIFT TOOL operator's manual before using.
  • Read and completely understand the contents of LIFT TOOL operator's manual before using. Failure to read, understand, obey safety rules, and follow instructions may result in property damage and/or personal injury. If there are questions, contact the vendor's service and support. Local paper manual must remain with machine in provided storage sleeve area. Latest revision manual available on vendor's website.
  • Test verify stabilizer brake function before each use. Do not over-force moving or rolling the LIFT TOOL with stabilizer brake engaged.
  • Do not raise, lower or slide platform load shelf unless stabilizer (brake pedal jack) is fully engaged. Keep stabilizer brake engaged when not in use or motion.
  • Do not move LIFT TOOL while platform is raised, except for minor positioning.
  • Do not exceed rated load capacity. See LOAD CAPACITY CHART regarding maximum loads at center versus edge of extended platform.
  • Only raise load if properly centered on platform. Do not place more than 200 lb (91 kg) on edge of sliding platform shelf also considering the load's center of mass/gravity (CoG).
  • Do not corner load the platform tilt riser accessory option. Secure platform riser tilt option to main shelf in all four (4x) locations with provided hardware only, prior to use. Load objects are designed to slide on/off smooth platforms without appreciable force, so take care not to push or lean. Keep riser tilt option flat at all times except for final minor adjustment when needed.
  • Do not stand under overhanging load.
  • Do not use on uneven surface, incline or decline (major ramps).
  • Do not stack loads.
  • Do not operate while under the influence of drugs or alcohol.
  • Do not support ladder against LIFT TOOL.
  • Tipping hazard. Do not push or lean against load with raised platform.
  • Do not use as a personnel lifting platform or step. No riders.
  • Do not stand on any part of lift. Not a step.
  • Do not climb on mast.
  • Do not operate a damaged or malfunctioning LIFT TOOL machine.
  • Crush and pinch point hazard below platform. Only lower load in areas clear of personnel and obstructions. Keep hands and feet clear during operation.
  • No Forks. Never lift or move bare LIFT TOOL MACHINE with pallet truck, jack or fork lift.
  • Mast extends higher than platform. Be aware of ceiling height, cable trays, sprinklers, lights, and other overhead objects.
  • Do not leave LIFT TOOL machine unattended with an elevated load.
  • Watch and keep hands, fingers, and clothing clear when equipment is in motion.
  • Turn Winch with hand power only. If winch handle cannot be cranked easily with one hand, it is probably over-loaded. Do not continue to turn winch past top or bottom of platform travel. Excessive unwinding will detach handle and damage cable. Always hold handle when lowering, unwinding. Always assure self that winch is holding load before releasing winch handle.
  • A winch accident could cause serious injury. Not for moving humans. Make certain clicking sound is heard as the equipment is being raised. Be sure winch is locked in position before releasing handle. Read instruction page before operating this winch. Never allow winch to unwind freely. Freewheeling will cause uneven cable wrapping around winch drum, damage cable, and may cause serious injury. (C048)
CAUTION:
If the System slide rails are installed above EIA location 29U, the [ServerLIFT®] tool (or other qualified lift tool) must be used as a safety precaution for servicing. Position the lift tool platform slightly below the bottom of the System drawer to account for the slight downward flex when the drawer is extended out fully on its slides. Then gently raise the lift tool platform to stably contact the bottom of the drawer, minding not to over force it as it could put upward stress to the slide rails. A service-qualified ladder may have to be used to reach or properly work around the System at such heights. While using a ladder, do not lean on or against the system drawer or lift tool during service, and follow safe practices. (C051)
DANGER
DANGER: Serious injury or death can occur if loaded lift tool falls over or if a heavy load falls off the lift tool. Always completely lower the lift tool load plate and properly secure the load on the lift tool before moving or using the lift tool to lift or move an object. (D010)

About this task

Important: The 5U expansion enclosure is heavy. Before you install the expansion enclosure in the rack for the first time or replace it in the rack to complete a service task, review and implement the following tasks:
  • Always use a suitably rated mechanical lift or four persons to raise the enclosure to install it in the rack. Even after the drives, power supply units, secondary expander modules, canisters, fans, and top cover are removed, the enclosure weighs 43 kg (95 lbs).
  • Install the expansion enclosure in the lowest position in the rack. Figure 1 shows an example.
    Figure 1. Example installation of the enclosure in the rack
    Insert expansion enclosure into the rack
  • Ensure that the drives are easily accessible. Avoid installing the 5U expansion enclosure above position 22U in the rack.
If you are reinstalling the expansion enclosure in the rack after you performed a service task (for example, replacing the enclosure), you must also perform the following tasks:
  • Reinstall all of the following parts:
    • Cover
    • Drives
    • Fan modules
    • Power supply units and 1U fascia
    • Secondary expander modules
    • Expansion canisters (and SAS cables)
  • Reconnect both power cables to the expansion enclosure.

Procedure

  1. Fully extend the left and right drawer sections from the rack to lock the rails in the extended position ( 1  in Figure 2).
    Figure 2. Replacing the 5U enclosure in the rack
    Replacing the enclosure in the rack
  2. Ensure that the ball bearing retainer clicks into place inside the front of the left and right drawer sections ( 2  in Figure 2).

Reinstalling parts into the enclosure

  1. If you took the enclosure out of the rack, reinstall the following parts inside of the enclosure, as described in the following procedures. You can reinstall the parts in any order.
    Remember: The weight of the enclosure increases as more drives are installed.
  2. Replace the top cover, as described in Installing or replacing the top cover.
  3. Reinstall the remaining enclosure parts, as described in the following topics. You can reinstall the parts in any order.

Sliding the enclosure into the rack

  1. Locate the left and right blue release tabs near the front of the enclosure. Press both release tabs forward to unlock the drawer mechanism ( 3  in Figure 2).
  2. Push the enclosure firmly into the rack ( 4  in Figure 2).
  3. Tighten the locking thumb screws ( 5  in Figure 2) to secure the enclosure in the rack.
  4. Reconnect power to the expansion enclosure.