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DAC960SX (DBX960S-3-UDR)

MYLEX CORPORATION

DAC960SX (DBX960S-3-UDR)

DAC960SX (DBX960S-6-UDR)

DAC960SX (DBX960S-6-FWR)

Card Type

Hard drive controller card

Processor

RISC

Maximum Onboard Memory

128MB DRAM (EDO supported)

Hard Drives supported

Up to 30 Ultra SCSI devices

Floppy drives supported

None

Data Bus

Up to two host Single-ended/Differential Wide Ultra-SCSI channels

Form Factor Size

5.25 inch

RAID levels supported

0, 1, 0+1, 3, 5, JBOD

CONNECTIONS

Function

Location

Function

Location

LCD panel interface

J1

Diagnostic port

J6

Battery back-up

J2

Edge connector

J7

Daughterboard connector 1

J3

Edge connector

J8

Daughterboard connector 2

J4

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

Channel 0 termination enabled

J5/pins 1 & 2

Closed

 

Channel 0 termination disabled

J5/pins 1 & 2

Open

Channel 1 termination enabled

J5/pins 3 & 4

Closed

 

Channel 1 termination disabled

J5/pins 3 & 4

Open

Host channel 0 termination enabled

J5/pins 5 & 6

Closed

 

Host channel 0 termination disabled

J5/pins 5 & 6

Open

Factory configured - do not alter

J5/pins 7 & 8

Open

Factory configured - do not alter

J5/pins 9 & 10

Open

DRAM CONFIGURATION

Size

Bank 0

8MB

(2) 1M x 36

16MB

(2) 2M x 36

32MB

(2) 4M x 36

64MB

(2) 8M x 36

128MB

(2) 16M x 36

TERMINATION CONFIGURATION

Notes: When using differential SCSI, external termination must be used and termination on the controller and daughterboard must be disabled. I.e., all termination jumpers (JP1/1-JP1/5) should be opened. (See User Configurable Settings.)

If Narrow SCSI (8-bit) is connected to any channel, the controller must be at one end of the bus with termination enabled (J5) on that channel.

If dual mode system, terminate SCSI bus externally.

MISCELLANEOUS TECHNICAL NOTES

The DAC960SX controller (which can reside within a DAC9060SXI enclosure) interfaces between the host system and a disk array. The controller is installed with one of several distribution boards: DBX960X-3-UDR, DBX960S-6-FWR and DBX960S-6-UDR. A DBI960SX daughterboard can be installed with the latter two, providing a 3 channel upgrade. A battery backup unit can be installed with all.

DBX960SXI (ENCLOSURE)

DBX960SXI Front Panel

CONNECTIONS

Function

Location

Function

Location

ESC key/return to previous screen

J1

Alarm key/reset audible alarm

ALARM

Keys defined by Instruction Line (last line of the LCD display menu

J2-J5

Unidentified

J7

Enter key/execute selected functions

J6

   

Card Type

Distribution board

Hard Drives supported

Up to 12 UltraSCSI Wide/Narrow devices

Floppy drives supported

None

Data Bus

One host Differential Wide Ultra-SCSI channel

Distribution Board DBX960S-3-UDR

CONNECTIONS

Function

Location

Function

Location

10-pin serial port - internal

J1

50-pin SCSI channel 1 connector - internal

J8

68-pin SCSI connector -

host channel 0

J2

Power connector

J9

10-pin connector - dual controller communications port

J3

18-pin connector - channel 1 fault indicator

J10

68-pin SCSI channel 0 connector - internal

J4

18-pin connector - channel 0 fault indicator

J11

50-pin SCSI channel 0 connector -

internal

J5

20-pin connector - AEMI (Array Enclosure Management Interface)

J12

68-pin SCSI channel 1 connector -

internal

J7

Power connector

J13

USER CONFIGURABLE SETTINGS

Function

Label

Position

Factory configured - do not alter

J6/5

N/A

Serial port protocol is SLP1

J6/6

Open

 

Serial port protocol is VT100

J6/6

Closed

Factory configured - (serial port baud rate is 19.2)

J6/7

Closed

Controller is only controller in system or

Controller is primary in two controller system

J6/8

Closed

 

Controller is secondary in two controller system

J6/8

Open

HOST CHANNEL SCSI ID SELECTION

SCSI ID

JP6/1

JP6/2

JP6/3

JP6/4

0

Open

Open

Open

Open

1

Closed

Open

Open

Open

2

Open

Closed

Open

Open

3

Closed

Closed

Open

Open

4

Open

Open

Closed

Open

5

Closed

Open

Closed

Open

6

Open

Closed

Closed

Open

7

Closed

Closed

Closed

Open

8

Open

Open

Open

Closed

9

Closed

Open

Open

Closed

10

Open

Closed

Open

Closed

11

Closed

Closed

Open

Closed

12

Open

Open

Closed

Closed

13

Closed

Open

Closed

Closed

14

Open

Closed

Closed

Closed

15

Closed

Closed

Closed

Closed

TERMINATION CONFIGURATION

Note: Differential resistor packs RP1, RP2 and RP3 must be installed to enable Host Channel 0 termination and removed to disable termination.

Card Type

Distribution board

Hard Drives supported

Up to 30 UltraSCSI Wide/Narrow devices

Floppy drives supported

None

Data Bus

Up to two host Ultra-SCSI Wide channels

Distribution Board DBX960S-6-FWR

CONNECTIONS

Function

Location

Function

Location

68-pin SCSI drive channel 2 connector - internal

J1

20-pin connector - AEMI (Array Enclosure Management Interface)

J10

68-pin SCSI drive channel 0 connector - internal

J2

Power connector

J11

68-pin SCSI drive channel 3 connector - internal

J3

10-pin serial port connector

J12

68-pin SCSI drive channel 1 connector - internal

J4

18-pin connector - drive channel 1 fault indicator

J13

68-pin SCSI host channel 1/drive channel 4 - internal

J5

18-pin connector - drive channel 0 fault indicator

J14

68-pin SCSI host channel 0 connector - internal

J7

18-pin connector - drive channel 2 fault indicator

J15

Power connector

J8

18-pin connector - drive channel 3 fault indicator

J16

18-pin connector - drive channel 4 fault indicator

J9

10-pin connector - dual controller communications port

J17

Note: Host channel 1 and drive channels 2 and 3 are only available if daughterboard DBI960SX is installed.

USER CONFIGURABLE SETTINGS

Function

Label

Position

Factory configured - do not alter

J6/5

N/A

Serial port protocol is SLP1

J6/6

Open

 

Serial port protocol is VT100

J6/6

Closed

Factory configured - (serial port baud rate is 19.2)

J6/7

Closed

Controller is only controller in system or

Controller is primary in two controller system

J6/8

Closed

 

Controller is secondary in two controller system

J6/8

Open

HOST CHANNEL 0 SCSI ID SELECTION

SCSI ID

JP6/1

JP6/2

JP6/3

JP6/4

0

Open

Open

Open

Open

1

Closed

Open

Open

Open

2

Open

Closed

Open

Open

3

Closed

Closed

Open

Open

4

Open

Open

Closed

Open

5

Closed

Open

Closed

Open

6

Open

Closed

Closed

Open

7

Closed

Closed

Closed

Open

8

Open

Open

Open

Closed

9

Closed

Open

Open

Closed

10

Open

Closed

Open

Closed

11

Closed

Closed

Open

Closed

12

Open

Open

Closed

Closed

13

Closed

Open

Closed

Closed

14

Open

Closed

Closed

Closed

15

Closed

Closed

Closed

Closed

HOST CHANNEL 1 SCSI ID SELECTION

SCSI ID

J6/9

J6/10

J6/11

J6/12

0

Open

Open

Open

Open

1

Closed

Open

Open

Open

2

Open

Closed

Open

Open

3

Closed

Closed

Open

Open

4

Open

Open

Closed

Open

5

Closed

Open

Closed

Open

6

Open

Closed

Closed

Open

7

Closed

Closed

Closed

Open

8

Open

Open

Open

Closed

9

Closed

Open

Open

Closed

10

Open

Closed

Open

Closed

11

Closed

Closed

Open

Closed

12

Open

Open

Closed

Closed

13

Closed

Open

Closed

Closed

14

Open

Closed

Closed

Closed

15

Closed

Closed

Closed

Closed

Card Type

Distribution board

Hard Drives supported

Up to 24 UltraSCSI Wide/Narrow devices

Floppy drives supported

None

Data Bus

Up to two Differential Wide Ultra-SCSI channels

Distribution Board DBX960S-6-UDR

CONNECTIONS

Function

Location

Function

Location

68-pin SCSI drive channel 2 connector - internal

J1

68-pin SCSI host channel 0 connector - internal

J7

68-pin SCSI drive channel 3 connector - internal

J2

Power connector

J8

68-pin SCSI drive channel 0 connector - internal

J3

10-pin serial port connector

J9

68-pin SCSI drive channel 1 connector - internal

J4

80-pin connector - fault and status port

J10

68-pin SCSI host channel 1 connector - internal

J5

10-pin connector - reserved for testing

J11

USER CONFIGURABLE SETTINGS

Function

Label

Position

Factory configured - do not alter

J6/5

N/A

Serial port protocol is SLP1

J6/6

Open

 

Serial port protocol is VT100

J6/6

Closed

Factory configured - (serial port baud rate is 19.2)

J6/7

Closed

Controller is only controller in system or

Controller is primary in two controller system

J6/8

Closed

 

Controller is secondary in two controller system

J6/8

Open

HOST CHANNEL 0 SCSI ID SELECTION

SCSI ID

JP6/1

JP6/2

JP6/3

JP6/4

0

Open

Open

Open

Open

1

Closed

Open

Open

Open

2

Open

Closed

Open

Open

3

Closed

Closed

Open

Open

4

Open

Open

Closed

Open

5

Closed

Open

Closed

Open

6

Open

Closed

Closed

Open

7

Closed

Closed

Closed

Open

8

Open

Open

Open

Closed

9

Closed

Open

Open

Closed

10

Open

Closed

Open

Closed

11

Closed

Closed

Open

Closed

12

Open

Open

Closed

Closed

13

Closed

Open

Closed

Closed

14

Open

Closed

Closed

Closed

15

Closed

Closed

Closed

Closed

HOST CHANNEL 1 SCSI ID SELECTION

SCSI ID

J6/9

J6/10

J6/11

J6/12

0

Open

Open

Open

Open

1

Closed

Open

Open

Open

2

Open

Closed

Open

Open

3

Closed

Closed

Open

Open

4

Open

Open

Closed

Open

5

Closed

Open

Closed

Open

6

Open

Closed

Closed

Open

7

Closed

Closed

Closed

Open

8

Open

Open

Open

Closed

9

Closed

Open

Open

Closed

10

Open

Closed

Open

Closed

11

Closed

Closed

Open

Closed

12

Open

Open

Closed

Closed

13

Closed

Open

Closed

Closed

14

Open

Closed

Closed

Closed

15

Closed

Closed

Closed

Closed

Card Type

Daughterboard

Hard Drives supported

Up to 18 UltraSCSI Wide/Narrow devices

Floppy drives supported

None

Data Bus

One Single-ended/Differential Wide Ultra-SCSI channel

DBI960SX Daughterboard

CONNECTIONS

Function

Location

Function

Location

Edge connector (drive)

CN1

DAC960SX controller connector

J2

Edge connector (drive)

CN2

DAC960SX controller connector

J3

USER CONFIGURABLE SETTINGS

Function

Label

Position

Channel 2 termination enabled

JP1/1

Closed

 

Channel 2 termination disabled

JP1/1

Open

Channel 3 termination enabled

JP1/2

Closed

 

Channel 3 termination disabled

JP1/2

Open

Channel 4 termination enabled

JP1/3

Closed

 

Channel 4 termination disabled

JP1/3

Open

Factory configured - do not alter

JP1/4

Open

Factory configured - do not alter

JP1/5

Open

TERMINATION CONFIGURATION

Notes: All termination jumpers (JP1/1-JP1/5) should remain closed on the daughterboard unless operating in dual host mode or using a differential SCSI distribution board.

When using differential SCSI, external termination must be used and termination on the controller and daughterboard must be disabled. All termination jumpers (JP1/1-JP1/5 should be opened.)

If dual host mode is not used, all JP1 termination jumpers should be closed.

MISCELLANEOUS TECHNICAL NOTES

The DBI960SX supports three SCSI channels. Two are drive channels and the third can be configured as either a second host channel or a third drive channel.

Battery Backup Unit

CONNECTIONS

Function

Location

Function

Location

3-pin connector - external battery source

J1

2-pin connector - VCC source for external LED

J4

12-pin connector to controller board

J3

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

Backup power source is internal (on-board batteries)

J2

INT

 

Backup power source is external (off-board batteries)

J2

EXT

Note: J2 is located on the reverse side of the Battery Backup card.

REFRESH TIMING SELECTION

Timing

J5

J6

Self-refresh

N/A

SELF

Normal refresh

NORM

C/R

Extended refresh

(for low power memory

LPWR

C/R