Technical information

Chapter 3

System Expansion

This chapter provides guidelines on how to expand your VAX 4000 Model

200 system.

3.1 Planning System Expansion

You must consider the following when you decide to expand your system:

• Can your system accommodate additional supported options?

You determine this by ﬁlling in the appropriate worksheet (Figure 3–1

or Figure 3–2) with the options currently installed in your system and

those you wish to add.

• If your existing system cannot accommodate a particular set of

supported options, you might wish to add one of the following

expanders, to enable support for the RA-series or RF-series ISEs.

NOTE: When combining BA215 and BA430 enclosures in the same

VAXcluster, you must use grounding kit H4010–AA.

Expander

Name

Additional

Q-22-Bus Slots

Additional

Storage Capacity

B213F 11 Up to three RF-series ISEs.

R215F 0 Up to three RF-series ISEs.

B400X 11 Up to four RF-series disk drives or three

tape drives and and one TK or TF series

tape drive.

R400X 0 Up to seven RF-series disk drive or six

RF-series ISEs, with room for one TLZ04

tape drive.

This chapter does not describe how to conﬁgure new options or how to install

them in your system. Conﬁguring an option involves assigning a control and

status register (CSR) address and an interrupt vector. This is usually done

System Expansion 3–1