Sun Microsystems enterprise server 220r 사용자 설명서
Chapter 4
Hardware Configuration
87
You must include the Sun Enterprise 220R server internal bus length of 2.952 feet
(0.9 meter) in your bus length calculations.
(0.9 meter) in your bus length calculations.
For fast/wide performance on the external SCSI bus, the maximum Sun-supported
SCSI bus length for daisy-chained SCSI devices is 6 meters (19.7 feet), including the
Sun Enterprise 220R internal bus length.
SCSI bus length for daisy-chained SCSI devices is 6 meters (19.7 feet), including the
Sun Enterprise 220R internal bus length.
UltraSCSI devices can be mixed with non-UltraSCSI devices on the same bus. The
UltraSCSI devices will still operate at UltraSCSI speeds (40 Mbytes/sec), provided
that the rules for UltraSCSI cabling, bus length, termination, and target devices are
followed.
UltraSCSI devices will still operate at UltraSCSI speeds (40 Mbytes/sec), provided
that the rules for UltraSCSI cabling, bus length, termination, and target devices are
followed.
If all external SCSI devices use 68-pin connectors, connect all non-Sun devices to the
system first and connect a Sun autoterminating device to the end the chain.
system first and connect a Sun autoterminating device to the end the chain.
If external mass storage devices consist of 68-pin devices and 50-pin devices, connect
the Sun 68-pin devices to the system first and terminate the chain with a 50-pin
device and its terminator. The 68-pin device connected to the 68-50 pin adapter cable
must be autoterminating in order to terminate the high-order bits.
the Sun 68-pin devices to the system first and terminate the chain with a 50-pin
device and its terminator. The 68-pin device connected to the 68-50 pin adapter cable
must be autoterminating in order to terminate the high-order bits.
If you install an internal tape drive into the system, you should assign it target
address 4 or 5. If you install an internal CD-ROM into the system, you should assign
it target address 6. If these drives have been factory-installed, they are configured
with the correct addresses for the system.
address 4 or 5. If you install an internal CD-ROM into the system, you should assign
it target address 6. If these drives have been factory-installed, they are configured
with the correct addresses for the system.
The removable media SCSI cable provides the termination for the internal SCSI bus.