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System Cabling Configurations C-5
Standard and Optional Hard Disk Drive Bays
SCSI Bus Cabling Configuration
The optional SCSI hard disk drive bay available for your system provides
storage for five additional SCSI hard disk drives.
If you order a system with the optional SCSI hard disk drive bay installed, the
system is pre-cabled at the factory (see Figure C-2" Standard and Optional Hard
Disk Drive Bays Cabling Configuration".) Also an optional PCI SCSI
controller board must be installed to support the additional SCSI hard disk
drives in the optional SCSI hard disk drive bay. Refer to "Installing an Option
Board" in Chapter 4.
If you are adding the optional SCSI hard disk drive bay you must install, cable,
and configure your system for this additional bay. Refer to "Installing an
Optional SCSI Hard Disk Drive Bay" in Chapter 4.
The on-board Ultra 160/m SCSI controller AIC 7899 contains two independent
SCSI channels that share a single PCI bus master interface. Each channel is
capable of operations using either 8- or 16-bit SCSI providing 160 MB/s (Ultra
160/m) throughput. As implemented on the system board controller A is used to
support SCSI hard disk drives in the standard SCSI hard disk drive bay.
Controller B is used to support SCSI devices in the 5 1/4-inch removable media
bays and to SCSI hard disk drives connected to the external SCSI connector
port. A 68 pin to 50 pin converter is also available to be used when installing
narrow SCSI devices.
Figure C-2 illustrates the Standard and Optional SCSI Hard Disk Drive Bays
bus cabling configuration. For standard SCSI hard disk drive bay cabling, see
the previous subsection "Standard Cabling Configuration".
The optional PCI SCSI controller board (A) has a SCSI interface cable (B) that
attaches to the backpanel (C) at the rear of the optional SCSI hard disk drive bay
(D) supporting up to five SCSI SCA hard disk drives.
Summary of Contents for EXPRESS5800/120Md Series
Page 1: ... U s e r s G u i d e EXPRESS5800 120Md ...
Page 2: ...NEC ...
Page 3: ... U s e r s G u i d e EXPRESS5800 120Md ...
Page 58: ...2 16 Setting Up the System Figure 2 10 Connecting the AC Power Cord to the Server ...
Page 64: ...2 22 Setting Up the System ...
Page 92: ...3 28 Configuring Your System ...
Page 165: ...A Technical Specifications Server Unit ...
Page 168: ...A 4 Technical Specifications ...
Page 174: ...B 6 Interrupt Request PCI IRQ Device I O Port Address Assignments ...
Page 185: ...D ROMPilot BIOS Error Codes ROMPilot BIOS Error Codes ...
Page 188: ...D 4 ROMPilot BIOS Error Codes ...
Page 198: ...10 Glossary ...
Page 204: ...Index 4 ...
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