DAC960PL Hard Disk/Floppy Controller Settings and Configuration

MYLEX CORPORATION

DAC960PL

Processor
RISC
Maximum Onboard Memory
4/8/16/32MB DRAM (n x 36)
Data Bus
32-bit PCI
Card Size
Full-length, full-height card
Hard Drives supported
Up to 45 Fast/Wide SCSI-2 devices
Floppy Drives supported
None
RAID Levels supported
0,1,5, and 0+1

CONNECTIONS
Function
Location
Function
Location
68-pin SCSI connector - channel 0 internal
J1
10-pin connector - battery backup (optional)
J5
68-pin SCSI connector - channel 1 internal
J2
68-pin SCSI connector - channel 0 external
J6
68-pin SCSI connector - channel 2 internal
J3
68-pin SCSI connector - channel 1 external
J7
26-pin connector - AEMI port
J4
6-pin connector - bus/drive active LED
JP5
Note: AEMI is the acronym for Array Enclosure Management Interface.

USER CONFIGURABLE SETTINGS
Function
Label
Position
»
Factory configured - do not alter
JP4
Unidentified
»
SCSI channel 0 termination enabled
J1
Closed

SCSI channel 0 termination disabled
J1
Open
»
SCSI channel 1 termination enabled
J2
Closed

SCSI channel 1 termination disabled
J2
Open
»
SCSI channel 2 termination enabled
J3
Closed

SCSI channel 2 termination disabled
J3
Open

Enable termination on a SCSI channel if the controller is installed at one end of that channel. This setting terminates the channel and power s its SCSI TERMPWR signal.
Disable termination on a SCSI channel if the controller is not at the end of that channel (both external and internal devices exist on the same channel).

DIAGNOSTIC LED(S)
LED
Status
Condition
JP5/pins 1 & 2
On
SCSI is active
(Data is being transmitted/received across SCSI channels)
JP5/pins 1 & 2
Off
No SCSI activity
JP5/pins 3 & 4
On
PCI is active
(Data is being transmitted/received to/from host)
JP5/pins 3 & 4
Off
No PCI activity
JP5/pins 5 & 6
On
Write is pending
(Cache holds data that needs to be written to disk)
JP5/pins 5 & 6
Off
No write is pending
Note: If the system loses power or is reset while JP6/pins 5 & 6 are on, the data in cache memory will be lost. Install the optional cache batter backup module J2 to avoid data loss.

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DAC960PL Hard Disk/Floppy Controller Settings and Configuration

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Processor	RISC
Maximum Onboard Memory	4/8/16/32MB DRAM (n x 36)
Data Bus	32-bit PCI
Card Size	Full-length, full-height card
Hard Drives supported	Up to 45 Fast/Wide SCSI-2 devices
Floppy Drives supported	None
RAID Levels supported	0,1,5, and 0+1

CONNECTIONS
Function	Location	Function	Location
68-pin SCSI connector - channel 0 internal	J1	10-pin connector - battery backup (optional)	J5
68-pin SCSI connector - channel 1 internal	J2	68-pin SCSI connector - channel 0 external	J6
68-pin SCSI connector - channel 2 internal	J3	68-pin SCSI connector - channel 1 external	J7
26-pin connector - AEMI port	J4	6-pin connector - bus/drive active LED	JP5
Note: AEMI is the acronym for Array Enclosure Management Interface.

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	Factory configured - do not alter	JP4	Unidentified
»	SCSI channel 0 termination enabled	J1	Closed
	SCSI channel 0 termination disabled	J1	Open
»	SCSI channel 1 termination enabled	J2	Closed
	SCSI channel 1 termination disabled	J2	Open
»	SCSI channel 2 termination enabled	J3	Closed
	SCSI channel 2 termination disabled	J3	Open
	Enable termination on a SCSI channel if the controller is installed at one end of that channel. This setting terminates the channel and power s its SCSI TERMPWR signal. Disable termination on a SCSI channel if the controller is not at the end of that channel (both external and internal devices exist on the same channel).

DIAGNOSTIC LED(S)
LED	Status	Condition
JP5/pins 1 & 2	On	SCSI is active (Data is being transmitted/received across SCSI channels)
JP5/pins 1 & 2	Off	No SCSI activity
JP5/pins 3 & 4	On	PCI is active (Data is being transmitted/received to/from host)
JP5/pins 3 & 4	Off	No PCI activity
JP5/pins 5 & 6	On	Write is pending (Cache holds data that needs to be written to disk)
JP5/pins 5 & 6	Off	No write is pending
Note: If the system loses power or is reset while JP6/pins 5 & 6 are on, the data in cache memory will be lost. Install the optional cache batter backup module J2 to avoid data loss.