Power-On With Hard Disk Model; Hard Disk Section Notes - E-Mu EII+ Owner's Manual

Table of Contents

HARD DISK SUPPLEMENT

in the Emulator II's Hard Disk software diskette (supplied with the Hard Disk upgrade). Should

additional errors occur over time, the disk's error log can be updated to include these new

errors, and the computer instructed not to write over the bad bytes.

Like a floppy disk, the Hard Disk must be formatted initially to accept data. However, a hard disk

must also be formatted if the hard disk "crashes" (which can occur if, say, power is interrupted in

the middle of a write-to-hard-disk operation).

This supplement will cover hard disk basics, and then discuss the Hard Disk functions that are

accessed via the Disk module. These functions cover almost all of your day-to-day use of the

Hard Disk. The final part will describe Hard Disk functions accessed via the Special module,

which are much less commonly used. These will be discussed in reverse numerical order

(SPECIAL 22, SPECIAL 21, etc.) since for some reason, this seems to present everything in the

most logical order.

POWER-ON WITH HARD DISK MODEL

The floppy disk is Drive 1, the Hard Disk Drive 2. When you first turn on power, the Emulator II

will test the floppy drive. If there is no floppy disk in Drive 1, the Emulator II will boot (load its

operating system software) from the Hard Disk. This is the preferred mode of operation, as

referring to the Hard Disk for the operating system software greatly speeds up overall Emulator

II operation (i.e. there is virtually no delay when switching from module to module within the

Emulator II).

The Hard Disk takes a while to "warm up" whenever it is turned on. Upon turn - on, the Hard

Disk's green "activity" LED will light, indicating that the Hard Disk is testing itself. After about 30

seconds, the red "ready" light will come on, indicating that all systems are go.

If there is a floppy disk in Drive 1, the Emulator II will boot from the floppy. This allows you to

easily boot the machine if the Hard Disk is malfunctioning for any reason.

Example:

Suppose power is interrupted to the Emulator II Hard Disk, and the system "crashes." You could

re-boot from the Hard Disk software floppy, thus loading software with which you can re format

the Hard Disk.

All disk module functions (except GET BANK DISK 2 and SAVE BANK (TO DISK) relate

exclusively to the floppy disk. The Hard Disk may be ignored if desired, in which case the

Emulator II operates just like an Emulator II with a single floppy disk drive.

Note: The Hard Disk can neither read not write Library disk data, so all Library functions must

be handled through floppies.

Page 151

Table of Contents