Справочник Пользователя для IBM 150

RS/6000 43P 7043 Models 150 and 260 Handbook

The following section gives an overview of the internal SCSI devices for the 
Models 150 and 260, and their main characteristics:

  • Disk drives

  • CD-ROM drives

  • Tape drives

Table 29 on page 121 shows the main characteristics of the internal disk 
drives that are available for the Models 150 and 260. When you want to install 
a 4.5 GB (# 2900) or a 9.1 GB (# 2908) hard disk in bay 3 you have to use the 
Media Bay Disk Drive Mounting Kit (# 6509).

If you want to install the disk drives in bay 4 or 5, you have to use either the 
4.5 GB (# 3028) or the 9.1 GB (# 3029) hard disk.

Cable Type

68 conductor shielded
cable (SCSI-II Differential
Fast/Wide)

4 conductor twisted-pair

Maximum Cable Lengths

25 Meters Total

25 meters between devices,
Up to 2500 Meters between
devices with the use of a
Fiber Optic Extender

Cable Costs

Significant

Low

Individual drive addressing

Must be set manually

Dynamic

Cable Termination

Electrical terminator
must be at the end of the
SCSI-bus

No termination required,
closed serial loops

Fault Tolerance

If single data path (bus) is
compromised, access is
lost

No single point of failure.
Multiple data paths prevents
a single loop from causing
loss of access to information

Maximum Throughput

Up to 40 MB/s

Up to 160 MB/s