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Chapter 2
Installation & Operation
Overview
Remove Front Panel
Cabinet Installation
SCSI Bus Configuration
SCSI ID Configuration
IES Configuration
External Cable Installation
Power Sequencing
System Verification
This chapter provides instructions for installing a new SafeStor\FT into a Cubix System 1010 Cabinet or user-supplied RETMA cabinet. A section describing each installation step below is included.
. Remove Front Panel - First, remove the front panel and packing foam from the SafeStor\FT. Do not apply power to the SafeStor\FT without first removing the packing foam from behind the front panel!
. Cabinet Installation - Next, install the SafeStor\FT into a RETMA cabinet and apply power to the unit.
. SCSI Bus Configuration - Verify the configuration of the SCSI bus and complete the configuration sheet.
. SCSI ID Configuration - Verify the SCSI ID for each disk drive.
. IES Configuration - If an IES is installed, set the IES address.
. External Cable Installation - Attach the SCSI connectors on the rear of the SafeStor\FT to the appropriate SCSI bus adapters. If the SafeStor\FT is to be connected to an IES Supervisory System, attach the Cubix data highway.
. Power Sequencing - Cycle power to the SafeStor\FT and the SCSI bus adapters.
. System Verification - Verify the system functions by examining the LEDs on the SafeStor\FT and replace the front panel.
WARNING!
THE SafeStor\FT SYSTEM MUST BE SERVICED AND CONFIGURED BY QUALIFIED SERVICE PERSONNEL ONLY.
WARNING!
THIS EQUIPMENT IS DESIGNED AND DESIGNATED AS CLASS 1 ELECTRONIC EQUIPMENT TO MEET ALL REQUIRED SAFETY STANDARDS. TWO PROPERLY GROUNDED POWER CORDS IN GOOD PHYSICAL CONDITION MUST BE USED TO POWER THE SafeStor\FT FROM PROPERLY GROUNDED WALL RECEPTACLES. THE USE OF FRAYED, CRACKED, OR ABRADED POWER CORDS, OR POWER CORDS WITH A DAMAGED THIRD WIRE SAFETY GROUND CONNECTION, OR POWER CORDS WITHOUT A THIRD WIRE SAFETY GROUND, ARE NOT THE RESPONSIBILITY OF CUBIX CORPORATION AND WILL VOID THE WARRANTY. USE ONLY 3/18 AWG SVT OR SJT CORDS WITH AN APPROVED IEC 320/C13 CONNECTOR TO OPERATE THE SYSTEM.
The front panel is secured by two screws, one on each side of the unit through the side panel ears.
1. Unscrew the two 6-32 screws from behind the front panel. The front panel is held into place by magnets. The screws are for shipping purposes only and are not required for normal operations.
2. Using the finger holes on the bottom of the front panel, pull the front panel off of the unit.
3. Foam is packed behind the front panel to secure the disk drives. Remove the packing foam.
The SafeStor\FT rack mount enclosures are designed for installation into Cubix System 1010 cabinets. The enclosures are standard 19" RETMA units and may be mounted into any cabinet that accommodates 19" RETMA devices (dimension requirements are illustrated in Figure 2-1 ). Follow the instructions below to install a SafeStor\FT into a Cubix System 1010 cabinet.
Refer to Figure 2-2 for an illustration of the mounting procedure.
1. Install the support rails. The length of these rails is adjustable to allow for varying cabinet depth requirements.
2. Place the SafeStor\FT on the support rails.
3. Attach the SafeStor\FT to the RETMA rails.
4. Connect each supplied power cable to one power receptacle on the rear of the SafeStor\FT. Turn each power switch to the ON position.
Cubix manufacturing configures the SCSI bus in the SafeStor\FT according to the configuration specified at the time the unit is ordered. To verify that the SCSI bus is configured as desired, the number of SCSI drives to be assigned to each server must be determined. The maximum number of SCSI drives supported by a single SafeStor\FT is twelve, and the maximum number of servers that may be serviced by these drives is six.
The SCSI backplane is divided into six groups of two drive connectors each. Each group represents a separate SCSI bus. Cubix technology allows these groups to be "joined", or "shunted", together. Between each group of two connectors are special shunt slots. By inserting a Cubix shunt board into the shunt slot, the adjacent two groups are joined into one SCSI bus segment. This provides maximum flexibility of bus configuration and drive assignment in the field.
The shunt slots may be occupied by a shunt board (to join the SCSI bus groups as previously described), or by a SCSI bus terminator board. Each SCSI bus must be terminated by inserting a terminator board in the last shunt slot on each SCSI bus, unless the bus is continued outside the SafeStor\FT.
Figure 2-3 illustrates the SafeStor\FT backplane divided into the maximum of six SCSI bus segments. Figure 2-4 shows how this backplane may be reconfigured to support five segments with four disk drives on the first bus. Many other configurations are possible depending upon the location of the shunt and terminator boards.
Verify the SCSI Bus Configuration
While power is applied to the SafeStor\FT, LEDs are illuminated on the backplane to indicate the SCSI bus configuration. There is one set of LEDs for each shunt slot. The LEDs may be viewed through openings on the front of the SafeStor\FT (refer to Figure 2-5 ). The definition of these LEDs is illustrated in Table 2 - 1.
Table 2-1
SCSI Bus LED Definitions
Amber A Terminator board is installed in
the shunt slot.
Green A shunt board is installed in the
shunt slot (joining SCSI Bus
segments).
* Green & Amber A terminator board is installed
backward
in the shunt slot.
None The shunt slot is empty.
* This is an error condition that must be resolved
before continuing
with the system configuration. Refer to Chapter 4 -
Component
Installation for shunt and terminator board
installation instructions.
Do not attempt to remove or install shunt or
terminator boards
while the SafeStor\FT is in operation.
On the rear of the front panel is a configuration sheet. The LEDs depicted in Figure 2-5 are illustrated on this configuration sheet with the word "SHUNTED" to the left and "TERMINATED" to the right. For each LED, circle "SHUNTED" if the LED is green, or "TERMINATED" if the LED is amber.
Looking at the configuration sheet, determine the number of drives on each SCSI bus. The number of drives is dependent upon the type of drive (third-height or half-height) installed in each group, as well as the number of groups shunted together. One group will accommodate two third-height drives or one half-height drive. In the "DRIVE INFORMATION" area on the configuration sheet, specify the drive type (third-height or half-height), the drive vendor, and the drive model. If two third-height drives reside in one group, specify this information for both drives.
Next determine which servers will use the disk drives on each SCSI bus. Specify the name of each server as a "HOST SERVER" for the appropriate SCSI bus on the configuration sheet. Also specify the Cubix "SUBSYSTEM" containing the server, and the "GROUP" within that subsystem containing the server processor. Specify the SCSI "HOST BUS ADAPTER" that will connect the server to this bus in the SafeStor\FT, and the "SLOT" containing this adapter in the server subsystem.
If the SCSI bus configuration does not accommodate the system requirements, the bus must be reconfigured. Refer to Chapter 4 - Component Installation for shunt and terminator board installation instructions.
Each device on one SCSI bus must be assigned a unique SCSI ID address. Refer to the preceding SCSI Bus Configuration section to determine the SCSI bus configuration. Typically each SCSI bus is limited to the SCSI bus adapter (located in the Cubix subsystem with the server that the disk drives will service) and two or more of the disk drives residing in the SafeStor\FT. However, it is possible to combine the devices in a SafeStor\FT with other SCSI devices on the same SCSI bus. Regardless of the configuration, each device on the same SCSI bus must be assigned a unique SCSI ID.
Twelve four-position DIP switches, one for each disk drive connector, are located on the backplane of the SafeStor\FT (refer to Figure 2-5 ). Use these switches to assign SCSI ID addresses. SCSI bus adapters are assigned the SCSI ID of 7. For each SCSI bus, the factory sets the SCSI ID addresses consecutively, beginning with address 0. If more than seven disk drive connectors reside on the same SCSI bus, SCSI ID 7 is skipped and numbering resumes with SCSI ID 8. Fast/wide SCSI is capable of supporting up to sixteen SCSI devices, including the SCSI bus adapter.
If the SCSI drives in the SafeStor\FT are the only devices on the SCSI bus except for the SCSI bus adapter, there should be no need to change the SCSI ID settings. If other SCSI drives reside on the bus, check the SCSI ID addresses of the other devices. Determine the desired SCSI ID configuration, ensuring that each device will be assigned a unique SCSI ID.
On the configuration sheet, specify each address in the "SCSI ID" space provided. Then complete each switch diagram to indicate how each DIP switch should be set to achieve the desired SCSI ID. DIP switch settings are provided in Table 2 - 2.
Note: If half-height disk drives are installed, there is an extra DIP switch on the backplane for each half-height drive. This DIP switch will be unused. Therefore, on a system configured with all of the disk drive connectors on a single SCSI bus, the disk drives will be assigned SCSI ID addresses 1, 3, 5, 8, 10, and 12 (remember that ID 7 is reserved).
Table 2-2
SCSI ID Configuration
ID SW1 SW2 SW3 SW4 ID SW1 SW2 SW3
SW4
0 off off off off 8 off off off on
1 on off off off 9 on off off on
2 off on off off 10 off on off on
3 on on off off 11 on on off on
4 off off on off 12 off off on on
5 on off on off 13 on off on on
6 off on on off 14 off on on on
7 reserved for controller 15 on on on on
To Change a SCSI ID:
Note: Power to the SafeStor\FT may remain on during this procedure.
1. Complete the configuration sheet to reflect the desired SCSI ID configuration.
2. Remove disk drives as necessary to gain access to the SCSI ID DIP switch.
3. Refer to Table 2 - 2 to set the desired SCSI ID on the DIP switch slightly to the left of the appropriate disk drive connector.
4. Replace the disk drives.
Every SafeStor\FT is equipped with either a power control module (PCM) or an Intelligent Environmental Sensor (IES) installed in the right most carrier location (when viewing the front of the unit). The IES is a SafeStor\FT option and is only included with the SafeStor\FT if specified when the system is ordered. The PCM is a standard SafeStor\FT component.
If an IES is installed, a PCM is still included in the shipment. The PCM will be shipped in a carrier similar to the disk drive carriers, but it will not be installed in the SafeStor\FT. Store the PCM in a safe location. It will only be needed in the unlikely event of an IES failure.
The PCM provides disk spin-up functions in systems not equipped with an IES. On the front of the PCM is a keyswitch and a Drive Start button (refer to Figure 2-6 ). If the SafeStor\FT is equipped with a PCM rather than an IES, proceed to the External Cable Installation instructions.
As explained in Chapter 1, the IES provides management functions for the SafeStor\FT. On the front of the IES is a keyswitch, a column of diagnostic LEDs, and an audible clear button (refer to Figure 2-7).
If the SafeStor\FT is equipped with an IES, and if the IES is to be connected to an IES Supervisory System, configure the address of the IES as described below. Otherwise, proceed to the External Cable Installation instructions.
The Cubix Data Highway is the out-of-band highway connecting devices on an IES Supervisory System (refer to the Management section in Chapter 1 for more information). Each IES connected to the same data highway must be assigned a unique data highway address. The BCVision software application uses this address to identify and communicate with each IES.
Valid IES addresses range from 1 to 31 (address 0 is reserved). The default address of the IES is configured to 1 by Cubix manufacturing. The address of the IES is determined by an eight position DIP switch located on the IES board. Instructions for configuring the IES address are specified below.
Note: Power to the SafeStor\FT may remain on during this procedure.
1. Remove the IES from the SafeStor\FT. The IES is located in the right most carrier position when viewing the front of the SafeStor\FT.
2. Set the S1 DIP switch (labeled "Cubix Data Highway") on the front of the IES board. Switches are numbered one to eight from left to right. A switch is ON when it is in the up position, and OFF when it is in the down position. Table 2 - 3 contains valid IES switch configurations.
Table 2-3
IES Address Configuration
IES DIP Switch Position
Address 1 2 3 4 5 6 7
8
1 down up up up up up up
up
2 up down up up up up up
up
3 down down up up up up up
up
4 up up down up up up up
up
5 down up down up up up up
up
6 up down down up up up up
up
7 down down down up up up up
up
8 up up up down up up up
up
9 down up up down up up up
up
10 up down up down up up up
up
11 down down up down up up up
up
12 up up down down up up up
up
13 down up down down up up up
up
14 up down down down up up up
up
15 down down down down up up up
up
16 up up up up down up up
up
17 down up up up down up up
up
18 up down up up down up up
up
19 down down up up down up up
up
20 up up down up down up up
up
21 down up down up down up up
up
22 up down down up down up up
up
23 down down down up down up up
up
24 up up up down down up up
up
25 down up up down down up up
up
26 up down up down down up up
up
27 down down up down down up up
up
28 up up down down down up up
up
29 down up down down down up up
up
30 up down down down down up up
up
31 down down down down down up up
up
3. Replace the IES into the unit. Insert the carrier containing the 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 (refer to Figure 2-7).
4. Using the key supplied with the SafeStor\FT, lock the IES carrier into place. Locking the carrier will supply power to the IES.
5. Verify that the IES is receiving power (the LEDs on the front of the IES carrier are illuminated when power is applied).
There are two types of external cables that may be installed:
. IES Data Highway Cables
. SCSI Cables
Figure 2-8 illustrates the external connectors on the rear of the SafeStor\FT.
IES Data Highway Cable Installation
WARNING!
Do not connect the SafeStor\FT to a Cubix Data Highway managed by a version of BCVision prior to v2.3. The optional Intelligent Environmental Sensor (IES) in the SafeStor\FT is not compatible with earlier versions of BCVision. Disregarding this warning may cause an IES in the SafeStor\FT to cease functioning.
If the SafeStor\FT is to be connected to an IES Supervisory System, connect the IES to the Cubix data highway using the two RJ-11 connectors on the rear I/O panel of the subsystem as shown in Figure 2-8 . Otherwise, proceed to the SCSI Cable Installation instructions.
. Connect the IES IN to the data highway cable.
. Devices are daisy-chained on the Cubix Data Highway. If this SafeStor\FT is not the last device in the chain, connect the IES OUT to the next device. Set switch 1 under the IES connectors on the rear of the SafeStor\FT to the OFF position (the switch is OFF when it is pointing to the right when viewed from the rear of the unit).
. If this SafeStor\FT is the last device in the chain, terminate the highway by setting switch 1 under the IES connectors on the rear of the SafeStor\FT to the ON position (the switch is ON when it is pointing to the left when viewed from the rear of the unit).
Table 2-4
IES Termination Switch Definition
Switch 1 Description
ON The SafeStor\FT is the last device in the
chain of
subsystems connected to the data highway
(i.e.
the IES OUT connector is not attached to the
highway).
OFF The SafeStor\FT is not the last device in
the chain
of subsystems connected to the data highway
(i.e.
the IES OUT connector is attached to the
next
device in the chain.
Note: Switch 2 of this DIP switch must always be in the
ON position.
SCSI Cable Installation
For a SCSI bus in the SafeStor\FT to be used by a server the bus must be connected to an external SCSI bus adapter that resides in the server system. A list of the SCSI bus adapters currently supported by the SafeStor\FT is included in Appendix C.
The SafeStor\FT supports both fast and fast/wide SCSI. Fast SCSI requires a 50-pin cable and fast/wide SCSI requires a 68-pin cable. The rear of the SafeStor\FT will be equipped with the type of SCSI connector requested at the time the unit is ordered. If the type of connector needs to be changed, a new SCSI internal cable kit must be acquired from Cubix and installed as described in Chapter 4 - Component Installation. The SCSI internal cable kit provides an interface between the SCSI cable and the internal SafeStor\FT electronics.
One SCSI connector is provided for each possible SCSI bus in the SafeStor\FT. The connectors are labeled 1 to 6. When viewing the SafeStor\FT backplane from the front of the unit, the first (left most) two disk locations are associated with SCSI connector number 1, the next two disk locations are associated with SCSI connector number 2, etc. If the backplane is configured so that some of the bus groups are shunted together, the first (or lowest numbered) SCSI connector assigned to that bus should be used and any remaining SCSI connectors on that bus ignored. Refer to Figure 2-9.
After the SafeStor\FT is configured and installed, power must be cycled so that the servers connected to the SafeStor\FT will recognize the SCSI hard drives. Power must be applied in one of the sequence options described below. If neither of the options for power sequencing is observed, the servers may not recognize the SCSI disk drives.
Option 1
. First, apply power to the SafeStor\FT.
. Next, apply power to the subsystems containing the servers connected to the SCSI disk drives in the SafeStor\FT.
Option 2
. Apply power to both the SafeStor\FT and the servers at the same time.
Power sequencing for System 1010 users is not an issue since all subsystems are powered from a common set of receptacles and always power on at the same time.
1. If an IES is installed, verify that all of the diagnostic LEDs on the front of the IES illuminate green. Figure 2-10 provides an overview of the IES LEDs. A detailed description of each LED indication is included in Chapter 3 - Components.
2. Verify that a green LED is illuminated on the front of each disk drive. If no LEDs are illuminated on a disk drive, verify that the disk drive is securely seated and is locked in place.
! If a PCM is installed and the LEDs on a disk drive do not illuminate, press the Drive Start button on the front of the PCM.
3. Replace the front panel. Installation is now complete.
This document, and all Web contents, Copyright © 1997
by Cubix Corp., Carson City, NV, USA.
