IBM RS/6000 - Manual (Page 62)

2.5.3 RS/6000 Model F30 Limitations
When planning or implementing an RS/6000 Model E20, give special consideration
to the following limitations, which are also listed in the announcement letter for this
product.
Internal Disk Drives
4.5 GB Disk drives (1.6 inch height) require two hot-swappable bays.
Graphics Adapter
There can be a maximum of two graphics adapters installed in the system.
SCSI Adapters
There are also SCSI limitations, depending on the adapter, as shown in Table 9 on
page 36.
2.6 Hardware Requirements
Both models require either an ASCII terminal with a serial attachment cable or a
graphics display attached to the graphics adapter for initial set up. Any of them
must be available for service. If an ASCII terminal is used, it
must be attached to
serial port S1.
If no graphics adapter is installed, the system firmware will send boot messages to
serial port S1. If a graphics adapter is installed, the boot messages will only be
directed to the graphics adapter and not to the serial port, S1.
The officially supported boot devices for these systems are CD-ROM, internal or
external hard disk or network devices using Ethernet or token-ring adapters. Also,
internal or external
tape drives can be used as bootable devices.
2.7 Performance Positioning
Values shown here are the results of development-level systems. All performances
data for Model E20 and Model F30 was obtained in a specific environment and is
presented "as is" for illustrative purpose only. While these values should be
indicative of general available systems, no warranties or guarantees are stated or
implied by IBM. IBM recommends application-oriented testing for performance
predictions and offers the following reported benchmarks only as an initial indicator.
Additional information on these tests is available from IBM Local Branch Office or
IBM Authorized Reseller.
38 Introduction to PCI-Based RS/6000 Servers