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StorageTek SL150 Modular Tape Library Customer Replaceable Unit Guide 29812-05 |
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# 3 Removal and Replacement

Figure 3-1 shows the rear of an SL150 library where the robot, tape drive(s), power supplies, and module controller customer replaceable units (CRUs) are located. Most of the CRU removal activity involves cable disconnection, release of a latch or loosening of captive screws, and the extraction of the CRU. Certain CRU removal/replacement activity must be performed when the library is powered down (see "Other CRUs").

Figure 3-1 CRU Locations (Rear View of SL150 Base and Expansion Modules)

Illustration Legend:

1 - Tape Drive Tray

2 - Robot (in the Base Module)

3 - Module Controller (in the Expansion Module)

4 - Power Supply

Warning: Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.

## Problem Determination

This guide assumes that you have isolated the library problem and have the necessary replacement part available. However, if you have not determined the problem; use the troubleshooting information in the user's guide (`http://docs.oracle.com`) or the Help system of the SL150 remote interface (see Figure 2-1).

## Common Procedures

This section has some common procedures used in various CRU removal procedures.

- Set the library offline to make sure the host tape management system is notified that something is manually changed in its database and to place the library in maintenance mode.

- Set the library online to remove the library from maintenance mode and return the library to host application control.

- Enable the Locate light to aid in finding the library in the data center.

### To Set the Library Offline

1. Quiesce the host application to prevent disruption of active storage operations.

2. Log in to the SL150 remote interface using your browser (see Figure 2-1).

3. Move the cursor to the library state control (see Figure 3-2).

4. Select Set Library Offline to place the library into maintenance mode.

5. Click OK in the dialog box (see Figure 3-3).

   Figure 3-2 Set Library Offline

   Illustration Legend:

   1 - Library State Control

Figure 3-3 Offline Confirmation

Illustration Legend:

1 - Confirmation Dialog Box (OK Button)

### To Set the Library Online

1. Log in to the SL150 remote interface using your browser (see Figure 2-1).

2. Move the cursor to the library state control (see Figure 3-2).

3. Select Set Library Online (takes the library out of maintenance mode).

4. Click OK in the dialog box.

   The library state changes to online.

### To Enable the Locate Light

1. Log in to the SL150 remote interface using your browser (see Figure 2-1).

2. Click the locate icon in the upper left of the screen (see Figure 3-4).

   Figure 3-4 Locate Icon

   Illustration Legend:

   1 - Locate LED

   2 - Library State

3. Select Switch Locate Light On.

   The GUI locate icon activates.

   The physical locate indicators activate on the front control panel and in the black rectangle on the robot CRU (at the rear of the base module, see Figure 3-1).

### Tape Cartridge Magazine

Adding or removing a tape cartridge magazine posts a Unit Attention to the host connected to the library or to the affected partition.

The tape magazine for the right side of a module is shown in Figure 3-5. The left and right magazines are not interchangeable. Each magazine holds 15 cartridges in slots arranged in a three row by five column array.

Figure 3-5 Tape Magazine

Illustration Legend:

1 - Tape Slots in Magazine (Five Columns and Three Rows).

The SL150 remote interface provides a method to unlatch a cartridge magazine for an offline library. Figure 3-6 shows the remote interface with an expanded menu for the left magazine.

Note: If this method is not practical, see "To Remove a Cartridge Magazine Manually".

### To Remove a Tape Cartridge Magazine

The following procedure relies on the SL150 remote interface. This procedure is intended only for removal of a magazine while the library is operational. This procedure is not intended as a preparation step for the removal of a failed library module.

Note: If you are not able to log in to the remote library interface, see "To Remove a Cartridge Magazine Manually".

Task 1 Unlatch the Magazine from the GUI

  1. Log in to the SL150 remote interface using your browser (see Figure 2-1).

  2. Set the library offline (see "To Set the Library Offline").

  3. Locate the appropriate module number (scroll as necessary).

  4. Click the label of the magazine you want to remove.

  5. Select Unlatch (see Figure 3-6).

  6. Click OK to confirm the unlatch action (see Figure 3-7).

     Figure 3-6 Magazine Actions

     Illustration Legend:

     1 - Magazine Control (Unlatch)

     Figure 3-7 Magazine Unlatch Confirmation

     Illustration Legend:

     1 - Confirmation Dialog Box (OK Button)

Task 2 Remove the Unlatched Magazine

  Caution: Although the magazine contains cartridge retention springs, use care when holding or moving the magazine to avoid tapes becoming unseated or dropping from the magazine.

  1. Grasp the magazine by the front handle and slowly extend it out of the module a short distance.

  2. Support the bottom of the magazine with your other hand during removal.

  3. Pull the magazine free of the module and set it aside.

### To Replace a Tape Cartridge Magazine

Caution: Although the magazine contains cartridge retention springs, use care when holding or moving the magazine to avoid unseating or dropping cartridges.

Task 1 Insert the Magazine

  1. Orient the magazine with the cartridge slots facing toward the center of the module.

  2. Lift the magazine and point the back toward the module slot.

  3. Engage the magazine with the track in the magazine bay of the module.

  4. Verify that tapes are properly seated in the magazine slots.

  5. Push the magazine fully into the library module.

     After magazine insertion, the library detects the magazine, latches the magazine, and moves the robot to audit the contents of the inserted magazine.

Task 2 Set the Library Online

  1. Log in to the SL150 remote interface (see Figure 2-1).

  2. Return the library to the online state.

     Note: The library must be online for host-controlled robotic activity to resume.

  3. Log out of the SL150 remote interface.

## Hot Swappable CRUs

This section provides removal and replacement instructions for the tape drive tray and power supply CRUs that you can replace while power is applied to the library. You temporarily remove the power supply or drive tray assembly and then insert the corresponding CRU in the open slot.

Warning: Do not operate the library with open tape drive or power supply slots.

### Drive Tray Assembly

The drive tray assembly (drive tray) is located in the center, rear of the module (see Figure 3-1). The drive tray has a series of indicators on the back panel (see Figure 3-8), an exposed circuit card near the right side thumbscrew, a tape drive, and a chassis (also referred to as a sled).

Figure 3-8 Tape Drive Tray CRU

Illustration Legend:

1 - Drive Indicators

2 - Port Indicator (LTO-5 FC Drive has One Port)

3 - Encryption Indicator and IP Reset Switch

4 - Thumbscrew (Drive Tray has two Thumbscrews)

#### Bridged Drive Considerations

The bridged tape drive is located in the top drive slot of the base module (Module 1). The robot control is a SCSI Medium Changer device that appears as LUN 1 on a tape drive.

If the library is partitioned, Module 1 must have two tape drives, and each tape drive provides the robot control for its assigned partition.

- The top drive in Module 1 for Partition 1 (magazines on the left side of the library, as viewed from the front of the SL150 library).

- The bottom drive in Module 1 for Partition 2 (magazines on the right side of the library, as viewed from the front of the SL150 library).

  Note: Library partitions share library elements such as the mailslot, robot, and reserved cells.

Bridge drive removal results in loss of host connectivity.

### To Remove the Drive Tray

Note: If the failed drive is the bridging drive, see "Bridged Drive Considerations".

Task 1 Preparation

  1. Quiesce activity for this tape drive.

  2. Log in to the SL150 remote interface using your browser (see Figure 2-1).

  3. (Optional) Enable the locate library indicator (see "To Enable the Locate Light").

Task 2 Prepare the Tape Drive Tray for Removal

  1. Click Library on the left of the remote interface.

  2. Move the cursor to the drive you need to replace.

  3. Click the drive icon and select Remove Drive.

  4. Click OK in the confirmation dialog box.

     The physical LED at the rear of the drive tray lights to indicate the drive is ready for removal.

Task 3 Remove the Tape Drive Tray

  1. Access the back of the library (open the rear door of the rack, if applicable).

  2. Locate the drive tray with the blue LED (indicates drive is ready for removal).

  3. Verify that the interface cables are labeled. Attach a label if necessary.

  4. Disconnect the cables from the jacks on the drive tray (see Figure 3-1).

  5. Loosen the thumbscrews on the drive tray (see Figure 3-9).

  6. Grasp the drive tray, pull it out of the library drive slot, and set it upright and flat on a work surface.

     Figure 3-9 Latch, Lock, and Thumbscrews

     Illustration Legend:

     1 - Robot Thumbscrews

     2 - Drive Tray Thumbscrews

     3 - Module Controller Latch

     4 - Robot Lock Thumbscrew (Original Lock Design)

### To Replace the Drive Tray

Task 1 Preparation

  Caution: Equipment damage. Do not touch the circuit card or static sensitive components.

  1. Follow accepted practices to prevent damage from ESD.

  2. Remove the replacement drive tray from the shipping carton. Save the packaging materials for the return of the failed CRU.

     Note: Handle the drive tray by the rear corners (close to the thumbscrews) and the bottom of the tray. Avoid contact with the top cover of the actual tape drive.

Task 2 Replace the Drive Tray

  1. Grasp the rear corners of the drive tray.

  2. Guide the front of the drive tray into the module drive slot.

  3. Push the drive tray completely into the drive slot.

  4. Verify that the LEDs are active on the rear of the drive tray.

  5. Tighten the thumbscrews firmly on each side of the drive tray to make sure there is no tray movement in any direction.

  6. Push the Locate indicator on the robot CRU to reset the light, if applicable.

  7. Connect the interface cable and Ethernet cable (if applicable) to the proper jack on the left side of the drive tray.

Task 3 Restart the Library

  1. Quiesce all mount/dismount activity on the library.

  2. Use the physical power button on the library or the power button icon in the remote management interface.

  3. Invoke Restart Library on the touch screen or the dialog box of the remote management interface.

  4. Wait for the restart to complete.

Task 4 Confirmation

  1. Confirm that the library recognizes and accounts for the drive (Drives area of the SL150 remote interface).

     It can take some time for the library to recognize the drive and for the LEDs to indicate the drive is operational.

  2. Make sure the drive port is enabled (view the Drive Properties and change drive settings if appropriate).

  3. Identify the tape drive firmware version and, if necessary, upgrade it (see Appendix B, "Drive Firmware").

  4. Log out of the SL150 remote interface or return the touch screen to Home.

### Power Supply

The power supply (Figure 3-10) has indicators in the upper left corner and a release latch to the right of the power receptacle.

Figure 3-10 Power Supply CRU

Illustration Legend:

1 - Power Supply Indicators

2 - Power Supply Latch

Module 1 requires one power supply (see Figure 3-1). Expansion modules require a power supply whenever a drive is installed in that module.

### To Remove the Power Supply

1. Disconnect the power cord from the defective power supply (see Figure 3-1).

2. Press the latch to the left (toward the fan) to release the power supply.

3. Grasp the power supply handle, pull it out of the library, and set it aside.

### To Replace the Power Supply

Task 1 Preparation

  1. Remove the power supply from the shipping carton.

  2. Grasp the power supply by the handle and support the bottom of the supply with your other hand.

Task 2 Install the Power Supply into the Module Slot

  1. Position the power supply with the power receptacle to the right.

  2. Align the rear of the supply with the module slot.

  3. Push the supply fully into the module slot.

  4. Make sure the power supply is secured in the module slot.

  5. Connect the power cord to the power supply receptacle.

  6. Verify that the OK indicator is active on the power supply.

     Note: Continue with "Power System Behavior" if the indicator is not active.

## Other CRUs

You must remove power from the library when working on the following CRUs:

- Robot

- Module Controller

- Front Control Panel

- Base and Expansion Module Chassis

Caution: The robot, front control panel, and base module chassis are critical to maintaining the product serial number and customer settings. When a replacement is needed for any of these CRUs, you may only replace one CRU during a single power down cycle.

In addition, you must remove tape cartridge magazines to replace the Front Control Panel, Base Module, and Expansion Module CRUs.

### Preparation Procedures

This section provides procedures to remove library power and manually remove a cartridge magazine to gain access to the screws securing the module to the rack.

#### Power-Down

There are two methods of removing power from the library: controlled and forced.

- Perform the controlled power down using either the Front Control Panel power button or the SL150 remote interface power icon.

- Perform the forced shutdown method at the library/rack.

Note: Only use the forced power-down method when the controlled method does not work (see "To Perform a Forced Power-Down").

#### To Perform a Controlled Power-Down from the GUI

1. Quiesce the host application to prevent disruption of active storage operations.

2. Log in to the SL150 remote interface using your browser (see Figure 2-1).

3. Click the power icon in the upper left of the screen (see Figure 3-11).

4. Select Power Down Library.

5. Select the Prepare the Robot for removal before the library powers down check box, if applicable (see Figure 3-12).

6. Click OK.

7. Follow on-screen prompts (for example, instructions to lock the robot).

   Figure 3-11 Power Down Library

   Illustration Legend:

   1 - Power Down Library Command

   Figure 3-12 Prepare the Robot for Removal

   Illustration Legend:

   1 - Check Box to Prepare the robot for removal before the library powers down

   2 - OK Button

#### To Perform an Orderly Shutdown from the Front Control Panel

1. Quiesce the host application to prevent disruption of active storage operations.

2. Press the power button on the Front Control Panel.

3. Tap the check box to prepare the robot for removal before the library powers down.

4. Tap OK.

5. Follow on-screen prompts (for example, instructions to lock the robot).

#### To Perform a Forced Power-Down

1. Quiesce the host application to prevent disruption of active storage operations.

2. (Optional) Enable the locate library indicator (see "To Enable the Locate Light").

3. Find the rack containing the library you want to power down.

4. Remove power from the library using one of the following methods:

   1. Use the forced (hard) shutdown method. Press the front panel power button and hold it until the library shuts down (approximately 10 seconds).

   2. (Optional) Use the physical method, if the hard shutdown does not work. Remove power from all power supplies (disconnect the power cord from all power supplies or set the PDU/power strip switch to the off position).

#### To Remove a Cartridge Magazine Manually

Caution: Manual removal of a tape cartridge magazine can damage the robotic mechanism. This procedure supports removal and replacement for some of the CRUs listed in "Other CRUs". Power down the library before beginning this procedure.

Task 1 Release the Magazine Latch

  1. Power down the library (see "Power-Down").

  2. Insert the hex key, provided in the installation kit, into the access hole at the lower inside corner of the cartridge magazine.

  3. Align the hex key parallel to the magazine face (see Figure 3-13).

  4. Push the tool slowly into the access hole to engage the latch located behind the touch screen, and hold the hex key in place.

     Figure 3-13 Magazine Release

Task 2 Remove the Magazine

  Caution: Although the magazine contains cartridge retention springs, use care while holding or moving the magazine to avoid dropping cartridges.

  1. Grasp the tape cartridge magazine opening with your other hand and pull the magazine a short distance out of the library.

  2. Remove the hex key and store it for future use.

  3. Support the bottom of the magazine with your other hand during removal.

  4. Pull the magazine free of the module and set it aside.

### Front Control Panel

The front control panel is located on the base module. Figure 3-14 shows the back side of the panel with identification of the upper tabs, the circuit card jack, and the latches at the side of the panel.

Caution: The robot, front control panel, and base module chassis are critical to maintaining the product serial number and customer settings. When a replacement is needed for any of these CRUs, you may only replace one CRU during a single power-down cycle.

Figure 3-14 Rear View of the Front Control Panel

Illustration Legend:

1 - Tabs

2 - Jack

3 - Latches

### To Remove the Front Control Panel

1. Power down the library (see "To Perform a Controlled Power-Down from the GUI").

2. Remove both cartridge magazines from the base module (see "To Remove a Cartridge Magazine Manually").

3. Press the latch inside each magazine bay inner wall and pull the bottom edge of the panel away from the module until the panel is unlatched (see Figure 3-15).

4. Free the tabs on the top edge of the panel from the module.

5. Rotate the top edge of the panel away from the top of the module about 90 degrees and hold the panel in this position with one hand.

6. Disconnect the ribbon cable plug from the jack located on the circuit card (see Figure 3-16).

7. Set the panel CRU on the anti-static mat.

   Figure 3-15 Front Control Panel Side View

   Figure 3-16 Front Control Panel Jack

### To Replace the Front Control Panel

Caution: ESD damage. Do not touch any exposed electronic components, cables, or contacts.

1. Remove the replacement front control panel from its packaging.

2. Grasp the panel by the plastic housing and raise it to the base module.

3. Attach the cable to the circuit card jack at the back of the panel. Make sure the connector is flush with the jack.

4. Insert the tabs on the top edge of the panel into the base module slots (see Figure 3-17).

5. Rotate the front control panel down and press the bottom edge into the base module slots. The panel snaps in place.

6. Replace both cartridge magazines (see "To Replace a Tape Cartridge Magazine").

7. Continue with "Power System Behavior".

   Figure 3-17 Front Control Panel Slots in Base Module

   Illustration Legend:

   1 - Slots in Base Module Chassis

### Module Controller

The module controller is located in the upper right corner of modules two through ten as viewed from the rear of the library (see Figure 3-1). The module controller obtains power from the expansion cable connected to a Module Output port on the base module.

The module controller is shown in Figure 3-18 with items identified which are pertinent to its removal and replacement.

### To Remove the Module Controller

Note: See "Electrostatic Discharge".

Task 1 Preparation

  1. Enable the Locate indicator on the library with the failed module controller (see "To Enable the Locate Light").

  2. Locate the module with the failed controller.

  3. Power down the library (see "To Perform a Controlled Power-Down from the GUI").

     Figure 3-18 Module Controller CRU

     Illustration Legend:

     1 - Hinge

     2 - Latch

     3 - Slot

     4 - Expansion Cable Jack

Task 2 Removal

  1. Disconnect the expansion cable from the connector on the module controller. Do not disconnect the other end of the cable from the base module.

  2. Squeeze the latch sections together.

  3. Extend the latch fully away from the module.

  4. Pull the controller card out of the module slot.

  5. Set the module controller on the anti-static work surface.

### To Replace the Module Controller

Caution: ESD damage. Do not touch any electronic components or electrical contacts.

1. Remove the replacement module controller from the ESD packaging.

2. Grasp the module controller without touching components or electrical contacts.

3. Open the retaining latch.

4. Insert the module controller in the module slot.

5. Seat the latch to secure the module controller.

6. Connect the expansion cable to the connector on the module controller.

   The other end of the cable is already connected to a Module Output port on the robot CRU.

7. Insert the failed module controller into the ESD packaging.

8. Continue with "Power System Behavior".

### Robot Module

The robot module is located at the top of the base module (see Figure 3-9). The robot must be parked in the base module, the robot lock engaged, and the thumbscrews loosened before attempting to remove the robot module.

Both the Front Control Panel and SL150 remote interface provide the option to prepare the robot for removal during the power down process.

Caution: The robot, front control panel, and base module chassis are critical to maintaining the product serial number and customer settings. When a replacement is needed for any of these CRUs, you may only replace one CRU during a single power-down cycle.

### To Remove the Robot

Caution: It is critical for the robot to be parked and latched before attempting to remove the robot CRU.

Task 1 Park and Lock the Robot

  1. Power down the library (see "To Perform a Controlled Power-Down from the GUI") with the ”to prepare the robot for removal” option enabled.

     If the robot cannot be parked by using the power-down procedure, perform "To Manually Retract the Robot".

  2. Remove the top drive tray or drive filler from the base module.

  3. Look through the drive slot and locate the position of the robot.

  4. Verify the robot is fully seated against the ceiling of the library.

     Repeat the parking procedure if necessary to make sure the robot is secured in the proper position.

  5. Set the robot lock to the locked position.

     For example, loosen the thumbscrew, remove the mechanism, rotate the mechanism 180 degrees, insert the mechanism, and tighten the thumbscrew.

     Note: Make sure the locked padlock icon is indicated (see Figure 3-20).

  6. Replace the top drive in the base module, if applicable.

Task 2 Removal

  Note: The robot CRU weighs approximately 5 kg (11 pounds).

  1. Make sure to identify each robot CRU Ethernet port and its attached cable (label the cable if necessary).

     Note: The Ethernet ports might be connected to different networks.

  2. Disconnect all cables attached to the robot CRU (Ethernet cable and expansion cable).

     Note: Set the expansion cable(s) aside if the expansion modules have been removed in preparation for base module replacement.

  3. Loosen the robot module thumbscrews (see Figure 3-19).

     Figure 3-19 Robot Removal and Replacement

  4. Grasp the robot module thumbscrews and pull the robot approximately 254 mm (10 inches) out of the base module.

  5. Reposition your hands near the center of the extended robot.

  6. Pull the robot completely out of the base module, and set it on the anti-static work surface.

  7. Continue with "To Replace the Robot".

### To Manually Retract the Robot

Note: Perform this procedure if you could not park the robot by using the power-down procedure

1. Remove the top drive tray from the base module (see "Drive Tray Assembly").

2. Locate the bullwheel gear inside the library and above the top drive slot (see Figure 3-20).

3. Place your finger in an indent on the body of the bullwheel gear. Pick an indent that is near the center of the library (use the Robot Module status indicators as a guideline).

4. Turn the gear toward the rear of the robot CRU to raise the robot.

   If the robot does not retract, continue with "To Manually Disengage the Robot".

5. Hold the bullwheel gear with the robot fully raised until you lock the robot.

6. Continue with Step 5 of "Park and Lock the Robot".

   Figure 3-20 Bullwheel Gear and Robot Lock

   Illustration Legend:

   1 - Bullwheel Gear

   2 - Robot Lock (Improved Design)

### To Manually Disengage the Robot

Caution: Perform this procedure only if either Step 1 of "Park and Lock the Robot" or "To Manually Retract the Robot" do not work. This procedure damages the robot assembly.

Task 1 Cut Cables

  1. Make sure the library is powered down.

  2. Remove all tape drives from the base module.

  3. Cut the accordion cable (folded ribbon cable).

  4. Reach into the library and cut both rear suspension cables.

  5. Cut the front suspension cables.

     The Z platform should settle to the floor of the bottom module.

Task 2 Remove the Robot CRU

  1. Loosen the robot module thumbscrews.

  2. Grasp the robot module thumbscrews and pull the robot approximately 254 mm (10 inches) out of the base module.

  3. Reposition your hands along the sides of the extended robot and close to the base module.

  4. Pull the robot completely out of the base module, and set it aside.

Task 3 Remove the Z Platform

  1. Remove the cartridge magazines from the base module.

  2. Continue to remove cartridge magazines from modules until you locate the Z platform.

     Note: You can also perform this procedure at the rear of the library by removing the tape drives from the modules, and reaching through the drive openings.

  3. Grasp the platform by reaching through either the magazine or tape drive openings.

  4. Raise the platform by hand to the top of the base module.

  5. Push the platform through the robot CRU opening at the rear of the base module.

Task 4 Finishing Touches

  1. Inspect the library floor and remove any debris resulting from the broken robot.

  2. Replace all cartridge magazines and tape drives removed to perform this procedure.

### To Replace the Robot

Task 1 Preparation

  1. Remove the replacement robot from its shipping carton, and set it on the anti-static mat. Save the packaging materials for the return of the failed CRU.

Task 2 Replacement

  1. Grasp the robot near the center with the thumbscrews facing you.

  2. Insert the robot into the base module (see Figure 3-19).

  3. Push the robot fully into the module.

  4. Tighten the thumbscrews on each side of the robot CRU.

  5. Set the robot lock to the unlocked position.

     For example, loosen the thumbscrew, remove the mechanism, rotate the mechanism 180 degrees, insert the mechanism, and tighten the thumbscrew.

     Note: Make sure the unlocked padlock icon is indicated (see Figure 3-20).

  Figure 3-21 Robot Lock (Unlocked)

Task 3 Cabling

  1. Plug the expansion cable for each module into a base module connector (it is permissible to connect a cable to any available connector).

  2. Plug the Ethernet cables into the appropriate Net Mgt ports.

  3. Continue with "Power System Behavior".

### Expansion Module Chassis

The CRU for modules two through ten is shown in Figure 3-22. You must transfer cartridge magazines, tape drives, tape drive fillers, power supplies, power supply fillers, and the module controller from the failed module to the CRU, as applicable.

To replace a defective module, you might need to de-install several operational modules to access the defective one. For example, a 150 cartridge library consists of five modules. If module 2 is defective, you would need to remove module 5, module 4, and module 3 to gain access to the defective module 2. You will also need to remove the cartridge magazines from the module above the defective module.

Figure 3-22 Additional Module CRU

Illustration Legend:

1 - Flange

2 - Tab

### To Remove an Expansion Module

Task 1 Preparation

  Caution: It is critical for the robot to be parked and locked before attempting to remove an expansion module.

  1. Power down the library (see "To Perform a Controlled Power-Down from the GUI") with the option enabled to prepare the robot for removal.

  2. Perform the instructions in "Park and Lock the Robot".

  3. Remove the cartridge magazines (see "To Remove a Cartridge Magazine Manually") from the defective module, all modules below it, and the module directly above it.

Task 2 Remove the Floor, Cables, and Cords

  1. Grasp the library floor at the thumbholds within the magazine openings (see Figure 3-23).

  2. Pull the floor out the front of the module.

  3. Disconnect the cable from the jack at each affected expansion module controller.

  4. Open the hook and loop strap, extract all cables and cords, then close the hook and loop strap.

  5. Disconnect the power supply cord.

  6. Disconnect the drive interface and Ethernet cables, as applicable.

     Figure 3-23 Library Floor Panel

     Illustration Legend:

     1 - Floor Thumbholds

Task 3 Remove Operational Expansion Modules Below the Defective Module

  Warning: Heavy object. The expansion module can weigh up to approximately 19.9 kg (43.9 pounds) with two cartridge magazines, 30 tape cartridges, two tape drives, and two power supplies.

  1. (Optional) Remove tape drives and power supplies to lighten the weight of the expansion module.

     See "Drive Tray Assembly" and "Power Supply", as necessary.

  2. Remove the Phillips screws securing the expansion module to the front of the rack.

  3. Grasp the module, pull the module forward until the break in the flange is visible, lower the front of the module, pull the module free from the one above it, and away from the rack.

  4. Set the module down and away from the front of the rack.

  5. Remove the Phillips screws and rear rails from the module. Leave the clip nut in place (see Figure 3-24).

  6. Repeat "Remove Operational Expansion Modules Below the Defective Module" as necessary until you have removed all modules below the failing expansion module.

     Figure 3-24 Module Rear Rail Removal

     Illustration Legend:

     1 - Rear Rail

     2 - Clip Nut

Task 4 Remove CRUs and the Defective Module

  1. Remove the tape drive trays (see "Remove the Tape Drive Tray"), if applicable.

  2. Remove the tape drive filler (see "To Remove the Drive Filler"), if applicable.

  3. Remove the power supplies (see "To Remove the Power Supply"), if applicable.

  4. Remove the power supply filler (see "To Remove the Power Supply Filler"), if applicable.

  5. Remove the module controller (see "Removal" of "To Remove the Module Controller").

  6. Remove the failed expansion module.

  7. Continue with "To Prepare the Expansion CRU for Replacement".

#### To Remove the Drive Filler

1. Loosen the thumbscrew on each side of the tape drive filler (see Figure 3-25).

2. Grasp the captive screws and pull the filler toward you.

3. Remove the filler from the drive slot and set it aside. You will install the filler in the CRU at a later time.

4. Return to Step 4 of "Remove CRUs and the Defective Module".

   Figure 3-25 Tape Drive Filler

   Illustration Legend:

   1 - Drive Filler Thumbscrews

#### To Remove the Power Supply Filler

1. Hook your finger in the hole of the power supply filler (see Figure 3-26).

2. Pull the filler from the power supply slot and set it aside.

3. Continue with "To Prepare the Expansion CRU for Replacement".

   Figure 3-26 Power Supply Filler

   Illustration Legend:

   1 - Power Supply Filler

### To Prepare the Expansion CRU for Replacement

1. Grasp the expansion module chassis by the sides and remove it from the shipping carton.

2. Determine if the CRU is the bottom library module. If it is not the bottom module, continue with "To Replace the Expansion CRU Chassis".

### To Install the Floor

1. Turn the module over.

2. Orient the floor so the floor finger holds face the inside of the cartridge magazine slot.

3. Insert the rear edge of the floor into the grooves at the bottom of the module.

4. Push the floor into the module and engage the rear floor tab with the module slot (see Figure 3-27).

5. Push the floor fully into the module to seat the floor clip in each magazine slot (see Figure 3-28).

6. Turn the module over and verify the floor clips properly engage the chassis.

7. Continue with the appropriate procedure: "To Replace the Expansion CRU Chassis" or "To Replace the Base Module (Module 1) Chassis".

   Figure 3-27 Floor Tab

   Illustration Legend:

   1 - Floor Slot

   2 - Floor Tab

   Figure 3-28 Floor Latching Tab

   Illustration Legend:

   1 - Floor Clip

   2 - Floor

### To Replace the Expansion CRU Chassis

Task 1 Installation

  1. Lift the expansion module by the sides.

  2. Align the flanges at the rear of the expansion module with the grooves in the lower front edges of the library module.

  3. Push the expansion module a few inches into the library.

     Note: There is a gap in the module flange.

  4. Lower the top front edge of the expansion module while slowly pushing it toward the library.

  5. Take care to avoid any contact between the expansion module internal vertical flange and the plastic bezel of the library module (see Figure 3-29).

  6. Lift the front edge of the module to level after the internal vertical flange is behind the face of the installed module. Continue to push the module in until it is about 51 mm (2 inches) from the rack front stiles.

  7. Locate the expansion module alignment tab and the slot in the library module left magazine slot (see Figure 3-30).

  8. Push the expansion module in and seat the alignment tab fully in the left magazine slot.

  9. Attach the expansion module CRU label (upper-left, rear corner inside the scribe marks) if applicable.

     Figure 3-29 Avoid Contact with the Operator Panel

     Illustration Legend:

     1 - Flange (Short Section

     2 - Internal Vertical Flange

     3 - Flange (Long Section)

     Figure 3-30 Module Alignment

     Illustration Legend:

     1 - Alignment Tab

     2 - Slot

Task 2 Secure the Module

  1. Insert the rear rails for each module, and secure them with Phillips screws.

  2. Secure the module to the front of the rack with two Phillips screws.

Task 3 Install the CRUs, Fillers, and Magazines in the Replaced Module

  Cables and cords are connected as part of CRU installation.

  1. Install the Module controller (see "To Replace the Module Controller").

  2. Install the tape drive assembly (see "To Replace the Drive Tray").

  3. Install the tape drive filler (see "To Install the Drive Filler").

  4. Install the power supply (see "To Replace the Power Supply").

  5. Install the power supply filler (see "To Install the Power Supply Filler").

  6. Insert the cartridge magazines.

Task 4 Install the Remaining Expansion Modules

  1. Locate the next expansion module for installation (refer to the module number label on the back of the module).

  2. Install the floor if this is the bottom library module (see "To Install the Floor").

  3. Repeat "Installation" through "Install the CRUs, Fillers, and Magazines in the Replaced Module" until all expansion modules and CRUs are installed.

Task 5 Finishing Touches

  1. Align, dress, and secure cables in the hook and loop straps.

  2. Continue with "Power System Behavior".

#### To Install the Drive Filler

1. Position the tape drive filler with the spring fingers facing up.

2. Grasp the captive screws and guide the filler into the tape drive slot.

3. Tighten both thumbscrews.

4. Return to Step 4 of "Install the CRUs, Fillers, and Magazines in the Replaced Module".

#### To Install the Power Supply Filler

1. Position the filler with the spring fingers facing up.

2. Insert the ”tabs” on the right side of the filler into the power supply slot until the notch is near the module frame.

3. Seat the filler notch against the module frame edge.

4. Push the left side of the filler into the power supply slot.

5. Return to Step 6 of "Install the CRUs, Fillers, and Magazines in the Replaced Module".

### Base Module (Module 1) Chassis

The base module CRU is shown in Figure 3-31. You must transfer the cartridge magazines, front control panel, tape drive(s), tape drive filler, power supply, power supply filler, and the robot from the defective base module to the CRU.

Caution: The robot, front control panel, and base module chassis are critical to maintaining the product serial number and customer settings. When a replacement is needed for any of these CRUs, you may only replace one CRU during a single power-down cycle.

You need to remove all expansion modules before you can remove a defective base module.

Figure 3-31 Base Module CRU

### To Remove the Base Module (Module 1) Chassis

Task 1 Preparation

  1. Perform "Park and Lock the Robot".

     Note: It is critical for the robot to be parked before proceeding.

  2. Remove all modules below the base module (see "To Remove an Expansion Module").

Task 2 Remove Reusable Parts from the Base Module

  1. Remove magazines (see "To Remove a Tape Cartridge Magazine")

  2. Remove the Front Control Panel (see "To Remove the Front Control Panel").

  3. Remove the robot (see "To Remove the Robot")

     Note: Includes removal of Ethernet cable and the expansion cable(s). Set the expansion cable(s) aside.

  4. Remove the tape drive trays (see "To Remove the Drive Tray").

  5. Remove the tape drive filler (see "To Remove the Drive Filler").

  6. Remove the power supplies (see "To Remove the Power Supply").

  7. Remove the power supply filler (see "To Remove the Power Supply Filler").

Task 3 Removal

  Warning: The base module weighs approximately 12.8 kg (28.3 pounds) without magazines, tape drives, power supplies, or the robot CRU. A best practice is to use two persons to lift the unit.

  1. Remove screws securing the base module to the front of the rack.

  2. Extract the module from the rack.

### To Prepare the Base Module CRU for Replacement

1. Grasp the base module chassis by the sides and remove it from the shipping carton.

2. Determine if the CRU is the bottom library module. If it is the bottom module, install the floor (see "To Install the Floor").

### To Replace the Base Module (Module 1) Chassis

Task 1 Install the CRU

  1. Grasp the base module along the side and lift it until the back is above the rack rails.

  2. Guide the module into the rack and set the rear side-tabs on the rack rails (see Figure 3-32).

     Figure 3-32 Base Module Side Tabs

     Illustration Legend:

     1 - Front Tab

     2 - Center Tab

     3 - Bottom Tab

     4 - Rear Tab

  3. Push the module into the rack to engage the bottom and center side-tabs.

     Note: If you can not engage the rails properly, remove the base module and adjust the rails. Never bend the tabs to engage a rail.

  4. Push the module into the rack until the front side-tabs approach the front of the rack rails.

  5. Lift the module up slightly, push it into the rack, and set the front tabs down on the rack rail.

  6. Secure the base module to the rack with screws (put one in a few turns then the other screw and tighten both).

Task 2 Install the Base Module CRUs

  Cables and cords are installed as part of the CRU replacement procedures.

  1. Install the robot (see "To Replace the Robot").

  2. Install the tape drive trays (see"To Replace the Drive Tray").

  3. Install the tape drive filler (see "To Install the Drive Filler").

  4. Install the power supplies (see "To Replace the Power Supply"). However, do not connect the power supply cable at this time.

  5. Install the power supply filler (see "To Install the Power Supply Filler").

  6. Install the Front control panel (see "To Replace the Front Control Panel").

Task 3 Install the Expansion Modules

  1. Locate Module 2.

  2. Determine if this is the bottom library module. Install the library floor in the bottom module (see "To Install the Floor").

  3. Install the module (see "To Replace the Expansion CRU Chassis").

     Note: CRUs, drive cables, and module interconnect cables are installed during replacement of the expansion module.

  4. Locate the next module and repeat step 2 and step 3 as necessary until all modules are in place.

  5. Install cartridge magazines (see "To Replace a Tape Cartridge Magazine") in all modules.

Task 4 Finishing Touches

  1. Align, dress, and secure cables in the hook and loop straps.

  2. Connect the power cord to each installed power supply.

  3. Continue with Power System Behavior.

## Power System Behavior

The behavior of the SL150 Modular Tape Library when AC power is applied to the system power supplies depends on how the tape library was powered down from the previous powered-up state. The system BIOS is set to recall the last power state from AC loss (such as a utility power outage, removal of the AC power cord, or powering off a PDU or power strip).

When AC power is restored, the system turns on for about 4 seconds while the system BIOS determines the library power state when AC was lost.

- If the tape library was powered up when AC was lost, it remains in the powered-on state and the boot sequence starts.

- If the tape library was powered down when AC was lost, it returns to the powered-down state about 4 seconds after AC power restoration.

A controlled powered-down is performed from the SL150 remote interface or physical library power button (the touch screen GUI is also involved). If power is lost after a controlled power-down, the BIOS resets to power on for about 4 seconds when AC power is restored. The tape library returns to the powered-off state until the power button is pressed to apply power to the tape library.

A forced power-down of the tape library is performed by pressing and holding the power button until the library powers down (approximately 10 seconds). If power is lost after a forced power-down, the library does not perform the BIOS power on for 4 seconds after AC power restoration. The tape library remains in the powereddown state until the power button is pressed to apply power to the tape library.

### To Power-on the Library

1. Make sure the robot is not locked.

2. Make sure the floor is installed in the bottom library module.

3. Press the power switch on the base module to initiate a restart, if necessary.

   Caution: Do not manually remove a cartridge magazine while the library is performing the restart. Perform a manual magazine removal only when the library is operational and offline.

   See Appendix A, "Startup" for a description of the process. Library initialization occurs during startup and includes movement of the robot to determine the number of modules and tape drives in the library. If library initialization fails, the tape drive ports are not enabled.

   Note: Because this is a bridged library, the host will not be able to see the library if the bridged drive ports are not enabled. Perform the library troubleshooting procedures in the user's guide to resolve the problem.

   Startup duration varies based upon the number of library modules. After completion, the Home screen appears on the touch screen.

4. Check the OK indicators on all CRUs.

5. Verify that the library health state is operational from the touch screen (see Figure 3-33) or the SL150 remote interface.

   If the health state is degraded or failed, consult the troubleshooting section of the user's guide to assist with resolving the problem.

   Figure 3-33 Home Screen

   Illustration Legend:

   1 - Library Health

### To Validate Library Operation

1. Perform an operational check of replaced CRUs, as applicable:

   Test the panel for general operation (locate light, touch screen, open the mailslot, and so forth).

   Confirm that the module controller is recognized by the library (Modules area of the touch screen or Library area of the SL150 remote interface).

2. Run self tests from the SL150 remote interface (see Appendix C, "Library Self-Test").

3. Set the tape library to the online state, log out of the SL150 remote interface, and return it to operation.

   Note: You might need to run application commands to ensure that the library and drive application are synchronized after CRU replacement. Refer to your host tape application documentation for guidance.

## CRU Return

Return the robot and tape drive tray CRUs to Oracle. Instructions should have been provided regarding the process to return the specific CRU.

Dispose of all other CRUs or recycle them, as appropriate.