9-2
Chapter 9, Mass Storage Configuration
Addendum 108431-001 (11-88) to
Manual No. 108033-003
□
Duplexing. The main difference between
mirroring and duplexing is that the two
drives in the mirrored unit operate off one
controller and the two fixed disk drives in
the duplexed unit operate off two control-
lers. An advantage of using dual controllers
for duplexing is that the data retrieval speed
is increased and the second controller pro-
vides additional protection if the
system fails.
Example: In a system where two drives are
duplexed, one drive may be
reading data while the other
drive is seeking the next block of
data. The information on both
fixed disk drives is the same.
NOTE: For information on component removal
and replacement, see Chapter 7,
REMOVAL AND REPLACEMENT
PROCEDURES. For information on
switch settings, see Chapter 8, JUMPER
SETTINGS AND SWITCH SETTINGS.
9.2 SYSTEM CONFIGURATION
NOTE: Internal cables are not interchangeable
between the system unit and the
expansion unit.
Maximum Storage
Use the device driver, EXTDISK.SYS, and an
operating system such as MS-DOS 3.31 or later to
access the capabilities of the 300-/600-Megabyte
fixed disk drive expansion unit.
Содержание Deskpro 386 - Desktop PC
Страница 1: ...COMPAQ DESKPRO 386 Personal Computer MAINTENANCE AND SERVICE GUIDE ...
Страница 2: ......
Страница 16: ......
Страница 24: ......
Страница 26: ......
Страница 46: ......
Страница 48: ......
Страница 58: ......
Страница 90: ......
Страница 92: ......
Страница 93: ...Maintenance and Service Guide 5 1 Addendum 108431 001 11 88 to Manual No 108033 003 page missing ...
Страница 94: ...5 2 Chapter 5 Error Messages and Codes Addendum 108431 001 11 88 to Manual No 108033 003 page missing ...
Страница 97: ...Maintenance and Service Guide 5 5 Addendum 108431 001 11 88 to Manual No 108033 003 page missing ...
Страница 98: ...5 6 Chapter 5 Error Messages and Codes Addendum 108431 001 11 88 to Manual No 108033 003 page missing ...
Страница 130: ......
Страница 132: ......
Страница 149: ...Maintenance and Service Guide 6 17 Addendum 108431 001 11 88 to Manual No 108033 003 page missing ...
Страница 150: ...6 18 Chapter 6 Illustrated Parts Catalog Addendum 108431 001 11 88 to Manual No 108033 003 page missing ...
Страница 156: ......
Страница 220: ...8 4 Chapter 8 Jumper Settings and Switch Settings Figure 8 2 COMPAQ DESKPRO 386 System Board Version 2 assy no 000558 ...
Страница 236: ...8 20 Chapter 8 Jumper Settings and Switch Settings 8 9 HOST ADAPTER BOARD Figure 8 11 Host Adapter Board assy no 000774 ...
Страница 254: ......
Страница 256: ......
Страница 276: ......