Hitachi 1000 User Manual

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BladeSymphony 1000 Architecture

White Paper

A SCSI or RAID type PCI card must be installed in a PCI slot in an I/O module to act as the controller of
the storage module. A PCI card is combined with a storage module, as shown in Figure 25, by
connecting the SCSI cable from the PCI card to the SCSI connector on the same I/O module, and then
connecting the board wiring from the SCSI connector to server slot #4 to #7, where the storage module
is installed through the backplane. The logical numbers of the SCSI connectors on I/O module #0 and
#1 are defined as #0 to #1 and #2 to #3, respectively.

Figure 25. Connection configuration for HDD Modules

Bridge

SCSI Bus

(Internally connected)

Sample Configuration

SCSI

6x HDD

SCSI i/f

SCSI

Server chassis

6 x HDD has only one
SCSI I/F port.
Note that this port is
not connected.

Backplane
(Type 2)

I/O module #1 (type 2)

I/O module #0 (type 1)

SCSI connector # 3

SCSI connector #2

{

I/F #0

I/F #1

I/F #2

I/F #3

#15 #14

#13 #12

#11 #10

#9 #8

#7 #6

#5 #4

#3 #2

#1 #0

Bridge

SCSI connector #0

SCSI connector #1

(1) 3x HDD Module

(2) 6x HDD Module

SCSI or RAID Card