Fujitsu MPC3045AH, MPC3065AH manual 3 2 drives connection, drives configuration

2.2.32 drives connection

Host

AT bus

(Host interface)

HA

(Host adaptor)

Disk drive #0

Disk drive #1

ATA interface

Note:

When the drive that is not conformed to ATA is connected to the disk drive is above configuration, the operation is not guaranteed.

Figure 2.4 2 drives configuration

IMPORTANT

HA (host adapter) consists of address decoder, driver, and receiver. ATA is an abbreviation of "AT attachment". The disk drive is conformed to the ATA-3 interface.

At high speed data transfer (PIO mode 3, mode 4, DMA mode 2 or ultra DMA mode 2), occurrence of ringing or crosstalk of the signal lines (AT bus) between the HA and the disk drive may be a great cause of the obstruction of system reliability. Thus, it is necessary that the capacitance of the signal lines including the HA and cable does not exceed the ATA-3 and ATA-4 standard, and the cable length between the HA and the disk drive should be as short as possible.

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