Reliant Octel 200 and Octel 300 Message Servers PB6001401 Bedienungsanleitung Seite 259

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Commands 6-29
Octel Overture 200/300 Serenade 3.0
PB60014–01
This
test reads the entire diskette; if there are errors, the message server responds with the following:
SOFT ERRORS DETECTED
or
FATAL ERROR DETECTED, SEE HARDWARE ERROR TABLE
When
the diagnostic is completed, the message server responds as follows:
TEST 01 COMPLETED
If
the message server fails to read from or write information to the diskette on the first attempt, but is
successful in a subsequent attempt, the message server records a soft error
. Soft errors can be caused by
diskette wear
, contamination on the recording surface, or aging of the floppy-disk-drive head.
Refer to the Installation chapter for information about the floppy-disk write-protect feature.
Hard-Disk-Drive Diagnostics (DEX)
The
purpose of the
DEX
command is to “exercise” the disks; hence its name
D
isk
EXerciser
. Because
only a small percentage of disk sectors are accessed in the course of normal operation and disk-error
handling cannot be performed for any sectors that are never accessed,
DEX provides an orderly and
ef
ficient means to read all disk sectors.
Each disk is divided into five regions, as follows:
Region 1 Critical sectors
Region 2
File system
Region 4
Prompts
Region 8
Message headers
Region 10
V
oice data
DEX tests each of the specified regions separately
, starting with the lowest-numbered region through the
highest-numbered region. Up to six drives are tested.
When the
DEX
command finishes testing a region, it displays a status line, as follows:
REGION WW COMPLETE DISK #1: XXXXX DISK #2: XXXXX DISK #3: XXXXX
DISK #4: XXXXX DISK #5: XXXXX DISK #6: XXXXX
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