DMODES(1M) RISC/os Reference Manual DMODES(1M)
NAME
dmodes - display and alter parameters of a SCSI disk drive.
SYNOPSIS
dmodes [-q] [-e #] [-p #] [-c #] [-d #] [-r #] <device_name>
DESCRIPTION
dmodes is a program that allows a user to display and selec-
tively alter some of the operating parameters of a SCSI disk
drive.
The device_name may be the name of any partition on the
character device.
OPTIONS
q quiet mode: only print header and pages which you are
changing
e # early correction: 0 = disable early ecc correction, 1 =
enable
p # post errors: 0 = disable report soft errors, 1 = enable
c # cache mode: 0 = disable drive caching, 1 = enable
d # disconnect parameters: set disconnect ratio to #
r # reconnect parameters: set reconnect ratio to #
The following is a sample output when only the -q option is
specified:
MAXTOR -LXT-200SY -3.09- - -DISK
Maxblock = 392055, blocksize = 512
Total number of defects = 19
The following is a sample output when no options are speci-
fied:
MAXTOR -LXT-200SY -3.09- - -DISK
Maxblock = 392055, blocksize = 512
Total number of defects = 19
PRIMARY DEFECT LIST (18 entries)
Cyl = 35 head =, 1 sect = 27
Cyl = 228 head = 4 sect = 36
Cyl = 582 head = 2 sect = 13
Cyl = 582 head = 2 sect = 13
Cyl = 742 head = 1 sect = 5
Cyl = 889 head = 2 sect = 15
Printed 11/19/92 Page 1
DMODES(1M) RISC/os Reference Manual DMODES(1M)
Cyl = 905 head = 4 sect = 18
Cyl = 933 head = 1 sect = 18
Cyl = 950 head = 0 sect = 4
Cyl = 950 head = 0 sect = 4
Cyl = 995 head = 5 sect = 6
Cyl = 996 head = 5 sect = 6
Cyl = 1206 head = 2 sect = 31
Cyl = 1206 head = 2 sect = 31
Cyl = 1281 head = 4 sect = 3
Cyl = 1281 head = 4 sect = 3
Cyl = 1287 head = 4 sect = 2
Cyl = 1287 head = 4 sect = 2
GROWTH DEFECT LIST (1 entries)
Cyl = 65 head = 0 sect = 48
SUMMARY
Number of defects on head 0 = 3
Number of defects on head 1 = 3
Number of defects on head 2 = 5
Number of defects on head 3 = 0
Number of defects on head 4 = 6
Number of defects on head 5 = 2
Number of defects on head 6 = 0
ERROR RECOVERY PAGE
Auto Write Realloc Enable = 0
Auto Read Realloc Enable = 0
Transfer Failing Block = 0
Read Continuous = 0
Enable Early Correction = 0
Post Error = 1
Disable Transfer on Error = 0
Disable Correction = 0
Retry Count = 8
Correction Span = 11
Head Offset Count = 16
Data Strobe Offset = 0
Recovery Time Limit = 0
DISCONNECT/RECONNECT CONTROL PAGE
Buffer Full Ratio = 0
Buffer Empty Ratio = 64
Bus Inactivity Limit = 0
Disconnect Time Limit = 0
Connect Time Limit = 0
FORMAT PARAMETER PAGE
Tracks Per Zone = 1
Alt Sectors Per Zone = 1
Alt Tracks Per Zone = 0
Alt Tracks Per Volume = 7
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DMODES(1M) RISC/os Reference Manual DMODES(1M)
Sectors Per Track = 42
Bytes Per Sector = 512
Interleave = 1
Track Skew Factor = 1
Cylinder Skew Factor = 21
Soft Sectoring = 0
Hard Sectoring = 1
Removable Media = 0
Surface Map = 0
Inhibit Save = 0
DISK DRIVE GEOMETRY PARAMETER PAGE
Number of Cylinders = 1314
Number of Heads = 7
Start of Write Precomp = 0
Start of Reduced Write Current = 0
Drive Step Rate = 0
Landing Zone Cylinder = 0
READ-AHEAD CONTROL PARAMETER PAGE
Write Cache Enable = 0
Multiple Selection = 0
Read Cache Disable = 0
Read Retention Priority = 1
Write Retention Priority= 1
Disable Prefetch Length = 65471
Minimum Prefetch = 0
Maximum Prefetch = 64
Max Prefetch Ceiling = 64
Printed 11/19/92 Page 3