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Chapter 4
Component Installation


Table of Contents

Overview
Disk Drive Installation
Shunt & Terminator Board Installation
PCM Installation
IES Installation
SCSI Connector & Cable Installation
Power Supply Installation
Fan Installation
Backplane Installation

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Overview

This chapter includes the following installation and replacement instructions:

. Disk Drive Installation

. Shunt & Terminator Board Installation

. PCM Installation

. IES Installation

. SCSI Connector & Cable Installation

. Power Supply Installation

. Fan Installation

. Backplane Installation


Disk Drive Installation

Note: Power to the SafeStor\FT may remain on during this procedure.

1. Remove the front panel. The front panel is secured by two magnets, one on each side of the panel. Using the finger holes on the bottom of the front panel, pull the front panel off of the unit.

2. If a disk drive is being replaced, remove the existing drive from the SafeStor\FT.

3. If a new drive is being added (rather than replaced), the SCSI ID should be verified. Each device on a SCSI highway must be assigned a unique SCSI ID using the DIP switches on the backplane in the SafeStor\FT. The SCSI bus adapter is assigned ID 7. The Cubix factory sets the SCSI ID addresses consecutively on each SCSI bus, beginning with ID 0 (if more than seven addresses are required, ID 7 is skipped and numbering resumes with SCSI ID 8). Refer to the SCSI ID Configuration section in Chapter 2 for switch location and configuration instructions.

4. Insert the carrier containing the new disk drive, verifying that it is in each of the three sets of guides aligning it with the connector on the backplane.

5. Using the key supplied with the SafeStor\FT, lock the drive carrier into place.

6. If a PCM is installed, press the Drive Start button on the front of the PCM to spin up the disk drive. Either a PCM or an IES must be installed in the right most carrier position when viewing the front of the SafeStor\FT. If an IES is installed, the drive will spin up automatically.

7. Verify that the new drive is receiving power (the top LED on the front of the drive carrier is illuminated when power is on).

8. Replace the front panel.

9. Reset the server using the new drive. This allows the server to initialize its disk drivers and recognize the SCSI disk drive.


Shunt & Terminator Board Installation

WARNING!

Do not install shunt or terminator boards while the system is in operation. Although it is not necessary to power down the SafeStor\FT to install shunt or terminator boards, care must be taken when the new board is plugged into the backplane. Do not install the board into a disk drive connector as this could cause an electrical short. Be sure that the shunt or terminator board is properly installed into a shunt slot.

1. Remove the front panel. The front panel is secured by two magnets, one on each side of the panel. Using the finger holes on the bottom of the front panel, pull the front panel off of the unit.

2. Shunt and terminator boards must be installed in shunt slots on the backplane, which runs across the SafeStor\FT behind the disk drives as illustrated in Figure 4-2 . The backplane contains twelve disk drive connectors. Between each pair of disk connectors is a shunt slot. A sixth shunt slot is provided between the last two drive connectors to allow termination of the last SCSI bus. Determine the location of the shunt slot into which the shunt or terminator board is to be installed.

3. If disk drives are installed in front of the desired shunt slot, remove the drives to gain access to the shunt slot.

4. If a shunt or terminator board is already installed in the shunt slot, remove the board.

5. Install the new shunt or terminator board into the shunt slot. Shunt slots are illustrated in Figure 4-1. Be sure that the board is placed into a shunt slot and not a disk connector slot. Installing a shunt or terminator board into a disk connector slot can cause an electrical short in the SafeStor\FT.

6. Verify that the configuration sheet on the rear of the front panel accurately reflects the backplane configuration.

7. Reassemble the unit in reverse order.

8. If the SafeStor\FT was not powered down to perform this procedure, and if a PCM is installed, press the Drive Start button on the front of the PCM to spin up the disk drives. Either a PCM or an IES must be installed in the right most carrier position when viewing the front of the SafeStor\FT. If an IES is installed, or if power to the SafeStor\FT is cycled, the drives will spin up automatically.


PCM Installation

Note: Power to the SafeStor\FT may remain on during this procedure.

NOTICE!

Disk drives in the SafeStor\FT will continue to function when a PCM or IES is removed from the unit. However, if the state of a disk drive changes from unlocked to locked while no PCM or IES is installed, power will not be restored to that disk drive until the new PCM is installed and the Drive Start pushbutton on the front of the PCM is pressed.

1. Remove the front panel. The front panel is secured by two magnets, one on each side of the panel. Using the finger holes on the bottom of the front panel, pull the front panel off of the unit.

2. If the PCM is replacing an existing PCM or IES, remove the carrier containing the module from the SafeStor\FT. This carrier is located in the right most carrier position when viewing the front of the SafeStor\FT.

3. Insert the carrier containing the new PCM, verifying that it is in each of the three sets of guides aligning it with the connector on the backplane. The PCM must be installed into the right most carrier location when viewing the front of the SafeStor\FT.

4. Using the key supplied with the SafeStor\FT, lock the PCM carrier into place.

5. Replace the front panel.


IES Installation

Note: Power to the SafeStor\FT may remain on during this procedure.

NOTICE!

Disk drives in the SafeStor\FT will continue to function when a PCM or IES is removed from the unit. However, if the state of a disk drive changes from unlocked to locked while no PCM or IES is installed, power will not be restored to that disk drive until the new IES is installed and power is applied to the IES.

1. Remove the front panel. The front panel is secured by two magnets, one on each side of the panel. Using the finger holes on the bottom of the front panel, pull the front panel off of the unit.

2. If the IES is replacing an existing PCM or IES, remove the carrier containing the module from the SafeStor\FT. This carrier is located in the right most carrier position when viewing the front of the SafeStor\FT.

3. Configure the data highway address of the new IES using the S1 DIP switch (labeled "Cubix Data Highway") on the IES printed circuit board. If an IES is being replaced, set S1 on the new board to match the switch settings on the board being replaced. Otherwise, refer to the IES Configuration section in Chapter 2.

4. Insert the carrier containing the new IES, verifying that it is in each of the three sets of guides aligning it with the connector on the backplane. The IES must be installed into the right most carrier location when viewing the front of the SafeStor\FT.

5. Using the key supplied with the SafeStor\FT, lock the IES carrier into place.

6. Verify that the IES is receiving power (the LEDs on the front of the IES carrier are illuminated when power is applied).

7. Replace the front panel.


SCSI Connector & Cable Installation

This procedure requires that a SCSI connector kit be acquired from Cubix Corporation. Both fast and fast/wide SCSI kits are available. Each kit includes:

. Six brackets and SCSI connectors to be installed in the rear panel of the SafeStor\FT.

. Six SCSI interface boards, which are attached to the SCSI connectors.

. Twelve screws to secure the connectors in place (two per connector).

. Six 44-pin ribbon cables that internally attach the connectors to the SafeStor\FT backplane.

1. Verify that the SafeStor\FT is not in use. Power down both power supplies by turning both power switches to the off position. These switches are located on the rear of the SafeStor\FT. Verify that no LEDs on the front of the unit are illuminated.

2. Disconnect the external cables from the rear of the SafeStor\FT. Warning! Do not continue with this procedure until both power cords are removed.

3. Remove the front panel. The front panel is secured by two magnets, one on each side of the panel. Using the finger holes on the bottom of the front panel, pull the front panel off of the unit.

4. If the SafeStor\FT is mounted in a cabinet, remove the unit.

5. Remove the top panel of the SafeStor\FT. The top panel is secured by thirteen screws.

6. Attach the 44-pin ribbon cable provided in the SCSI connector kit to the SCSI interface board (this board is attached to the SCSI connector).

7. Determine to which of the six I/O connectors on the backplane the new SCSI channel will attach (refer to Figure 4-2 to locate the backplane, and to Figure 4-3 to find the I/O connectors).

8. Select the corresponding opening on the rear panel of the SafeStor\FT to that backplane connector.

9. Unscrew and remove the filler panel from the selected opening in the rear panel of the SafeStor\FT.

10. Using the two screws provided, install the SCSI connector into the opening.

11. If disk drives are installed in front of the desired backplane connector, remove the drives to gain access to the connector.

12. From the rear of the SafeStor\FT, guide the 44-pin cable under the backplane, keeping it as close to the desired backplane connector as possible.

13. From the front of the SafeStor\FT, reach through the disk drive bay. Plug the 44-pin cable into the backplane connector.

14. Reassemble the unit in reverse order.

15. Replace the SafeStor\FT if it was removed from a cabinet.

16. Connect the external cables to the rear of the SafeStor\FT.

17. Restore power to the SafeStor\FT.


Power Supply Installation

The status of each power supply is indicated by LEDs on the front of each power supply. If a power supply is turned on, and its LED is amber, the power supply is exhibiting a fault and should be replaced. If an IES is installed, the power supply LEDs are duplicated on the front panel.

Note: Power to the SafeStor\FT may remain on during this procedure.

1. Remove the front panel. The front panel is secured by two magnets, one on each side of the panel. Using the finger holes on the bottom of the front panel, pull the front panel off of the unit.

2. If a power supply is being replaced, remove the existing supply from the SafeStor\FT. If a supply fault has occurred, refer to the LEDs on the front of each power supply. Remove the power supply with the amber LED indicating a power supply fault.

Note: The LED on the front of an unlocked power supply will glow amber, even though power to that supply is off, provided that the second supply is operational.

3. Insert the carrier containing the new power supply, verifying that it plugs into the connectors on the backplane.

4. Using the key supplied with the SafeStor\FT, lock the power supply carrier into place. This applies power to the power supply.

5. Verify that the green LED on the front of the new supply is illuminated and the amber LED is not.

6. Replace the front panel.


Fan Installation

Note: Power to the SafeStor\FT may remain on during this procedure.

1. Remove the four screws securing the fan plate to the rear panel as illustrated in Figure 4-4 and remove the plate.

2. Reach inside the opening created when the plate was removed and disconnect the fan cable from the IES interface board (this board houses the RJ-11 IES connectors in the middle of the rear panel as illustrated in Figure 4-5 ). On the top end of the cable where it attaches to the interface board is a small plastic tab. Squeeze the tab to release the cable from the connector.

3. Remove the fan.

4. Install the new fan and reassemble the unit in reverse order.


Backplane Installation

1. Verify that the SafeStor\FT is not in use. Power down both power supplies by turning both power switches to the off position. These switches are located on the rear of the SafeStor\FT. Verify that no LEDs on the front of the unit are illuminated.

2. Disconnect both power cables from the rear of the SafeStor\FT. Warning! Do not continue with this procedure until both power cords are removed.

3. Remove the front panel. The front panel is secured by two magnets, one on each side of the panel. Using the finger holes on the bottom of the front panel, pull the front panel off of the unit.

4. If the SafeStor\FT is mounted in a cabinet, remove the unit. (This step is not necessary if adequate space exists in the cabinet above the SafeStor\FT to allow removal of the top panel.)

5. All disk drives must be removed from the SafeStor\FT. Before removing the drives, be sure to note the location of each drive (affix a label to each drive identifying its position in the drive bay).

6. Remove the carrier containing the PCM or IES from the SafeStor\FT. This carrier is located in the right most carrier position when viewing the front of the SafeStor\FT.

7. Up to six I/O ribbon cables attach the SCSI connectors on the rear panel to the backplane. These cables must be disconnected from the backplane. Before disconnecting each cable, note to which backplane connector the cable is attached (refer to Figure 4-3 for backplane connector locations).

8. From the rear of the SafeStor\FT, disconnect the two cables from the IES interface board illustrated in Figure 4-5. On the top end of each cable where it attaches to the interface board is a small plastic tab. Squeeze the tab to release the cable from the connector.

9. Warning! Power must be disconnected from the SafeStor\FT before this step is performed!

Use a pair of needle nose pliers to disconnect the two cables attached to each power receptacle.

10. Unscrew the four screws securing the backplane bracket to the SafeStor\FT. There are two screws on each side of the unit as illustrated in Figure 4-6.

11. Remove the backplane bracket by angling it and pulling it up and out of the SafeStor\FT.

12. Remove each shunt and terminator board from the backplane being replaced, installing each board in the same location on the new backplane.

F Shunt and terminator board locations should be specified on the configuration sheet attached to the rear of the front panel.

13. There are twelve DIP switches on the backplane. These switches set the SCSI ID for each disk drive connector. Set the DIP switches on the new backplane to the same settings as the switches on the backplane being replaced.

F SCSI ID addresses and DIP switch settings should be specified on the configuration sheet attached to the rear of the front panel.

14. Remove the eight screws and washers securing the old backplane to the support bracket.

15. Use the eight screws and washers removed in the previous step to secure the new backplane to the support bracket.

16. Insert the backplane bracket into the unit.

17. Reassemble in reverse order, observing the following instructions.

18. Replace the SafeStor\FT if it was removed from a cabinet.

19. Restore power to the SafeStor\FT.



This document, and all Web contents, Copyright © 1997 by Cubix Corp., Carson City, NV, USA.