MYLEX CORPORATION

DAC960P, DAC960PD, DAC960PD-ULTRA

Processor                RISC
Maximum Onboard Memory   4/8/16/32MB (n x 36) optional DRAM

                         4/8MB (n x 36) optional EDRAM
Data Bus                 32-bit PCI
Card Size                Full-length, full-height card
Hard Drives supported    Up to 45 Ultra-SCSI devices (DAC960PD-Ultra)

                         Up to 45 Fast SCSI-2/Wide SCSI devices
                         (DAC960P/PD)
Floppy Drives supported  None
RAID Levels supported    0,1,5, and 0+1

[Image]

                                CONNECTIONS

        Function          Location          Function           Location

  26-pin connector -         J1        68-pin SCSI                J5
  AEMI port                            connector -
                                       channel 2 internal

  10-pin connector -         J2        6-pin connector -          J6
  battery backup                       bus/drive active
  (optional)                           LED

  68-pin SCSI connector      J3        68-pin SCSI               J11
  - channel 0 internal                 connector -
                                       channel 0 external

  68-pin SCSI connector      J4        68-pin SCSI               J14
  - channel 1 internal                 connector -
                                       channel 1 external

  Note: AEMI is the acronym for Array Enclosure Management Interface.

                        USER CONFIGURABLE SETTINGS

                 Function                     Label         Position

  »    Factory configured - do not alter       J7         Unidentified

  »    SCSI channel 0 termination enabled      J9            Closed

       SCSI channel 0 termination disabled     J9             Open

  »    SCSI channel 2 termination enabled      J10           Closed

       SCSI channel 2 termination disabled     J10            Open

  »    SCSI channel 1 termination enabled      J12           Closed

       SCSI channel 1 termination disabled     J12            Open

                 Enable termination on a SCSI channel if the controller
                 is installed at one end of the channel. This setting
                 terminates the channel and powers the SCSI TERMPWR
                 signal.

                 Disable termination on a SCSI channel if the controller
                 is not at the end of the channel (i.e., both external
                 and internal devices exist on the same channel).

                             DIAGNOSTIC LED(S)

       LED            Status                    Condition

  J6/pins 1 & 2         On                    SCSI is active

                                    (Data is being transmitted/received
                                          across SCSI channels)

  J6/pins 1 & 2        Off                   No SCSI activity

  J6/pins 3 & 4         On                    PCI is active

                                    (Data is being transmitted/received
                                              to/from host)

  J6/pins 3 & 4        Off                   No PCI activity

  J6/pins 5 & 6         On                   Write is pending

                                    (Cache holds data that needs to be
                                             written to disk)

  J6/pins 5 & 6        Off                 No write is pending

  Note: If the system loses power or is reset while J6/pins 5 & 6 are on,
  the data in cache memory will be

  lost. Installing optional cache battery backup module J2 will avoid
  data loss.