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IBM 127MB / 230MB (MO) Optical Disk Drive Parts
127-MB Drive OPT-P/N xxxxxxx (FAT)
127-MB Drive OPT-P/N xxxxxxx (SLIM)
230-MB Internal OPT-P/N ORI230M Drive
230-MB External OPT-P/N ORE230M Drive and Case
IBM 127MB Magneto-Optical (MO) Disk Drive.
If the Operating System is OS/2 and there are only FORMAT problems (read/write/copy is working), then
In all cases, you should first CLEAN the drive/media, before starting TESTs, or replacements.
see Optical Disk Drive Parts for the appropriate tool for
the drive in use.
Next find the DRIVE-TYPE you are working with (FAT / SMALL or 230MB)
IBM 127MB Magneto-Optical (MO) Disk Drives.
FAT - Drive
Left side Jumperblock
Right side Jumperblock (SCSI Address)
SMALL - Drive
FUNCTION (DIP SWITCH ONLY SETUP) (DIP S1 Switch)
FUNCTION (DIP SWITCH ONLY SETUP) (DIP S2 SWITCH - SCSI Address)
FUNCTION (DIP SWITCH and CONNECTOR SETUP)
127MB MO-Drive DOS OS/2 CONFIG.SYS examples
CONFIG.SYS example (FAT-drive used with DOS)
.... for 230MB INTERNAL Drives
Please see the LEGAL - Trademark notice.
FUNCTION
1
2
3
4
5
6
7
8
DEFAULT Setup (Factory)
1
1
1
1
0
1
0
0
Create unit Attention
1
-
-
1
-
-
-
-
Disable Unit Attention
0
-
-
1
-
-
-
-
Check SCSI Parity
-
1
-
1
-
-
-
-
Ignore SCSI Parity
-
0
-
1
-
-
-
-
Device Type X'07'
-
-
1
1
-
-
-
-
Device Type X'00'
-
-
0
1
-
-
-
-
No Spin Up on POR
-
-
-
-
1
-
-
-
Auto Spin Up on POR
-
-
-
-
0
-
-
-
No Security Mode (normal)
-
-
-
-
-
1
-
-
C2 Security Mode
-
-
-
-
-
0
-
-
Without Power Saving Mode
-
-
-
-
-
-
1
-
With Power Saving Mode
-
-
-
-
-
-
0
-
Reserved (MUST be OFF)
-
-
-
-
-
-
-
0
Mode Page 1,2,3,4 Support
(With Device TYPE X'00') 1
1
0
0
-
-
-
-
FUNCTION
1 2 3 4
SCSI Addr. 0
0 0 0 -
SCSI Addr. 1
1 0 0 -
SCSI Addr. 2
0 1 0 -
SCSI Addr. 3
1 1 0 -
SCSI Addr. 4
0 0 1 -
SCSI Addr. 5
1 0 1 -
SCSI Addr. 6
0 1 1 -
SCSI Addr. 7
1 1 1 -
Disable SCSI Terminator
- - - 1
Enable SCSI Terminator
- - - 0
0 = DIP SW-Off
1 = DIP SW-ON
P = CONNECTOR Open
S = CONNECTOR Short to Ground (CON C1-1)
H = HIGH (Output)
L = LOW (Output)
FUNCTION
CON C1
DIP S1
DIP S2
CON C2
Create Unit Attention
- - - - - P
0 - 0 0
- - - -
S - S -
Disable Unit Attention
- - - - - P
0 - 0 0
- - - -
P - S -
Device Type X'07'
- - - - - P
0 - 0 0
- - - -
- S S -
Device Type X'00'
- - - - - P
0 - 0 0
- - - -
- S S -
Mode Page 20 Support
- - - - - S
1 1 1 -
- - - -
P P P -
SCSI ADDRESS 0
- P P P - -
- - - -
0 0 0 -
- - - -
SCSI ADDRESS 1
- S P P - -
- - - -
0 0 0 -
- - - -
SCSI ADDRESS 2
- P S P - -
- - - -
0 0 0 -
- - - -
SCSI ADDRESS 3
- S S P - -
- - - -
0 0 0 -
- - - -
SCSI ADDRESS 4
- P P S - -
- - - -
0 0 0 -
- - - -
SCSI ADDRESS 5
- S P S - -
- - - -
0 0 0 -
- - - -
SCSI ADDRESS 6
- P S S - -
- - - -
0 0 0 -
- - - -
SCSI ADDRESS 7
- S S S - -
- - - -
0 0 0 -
- - - -
Disable SCSI Terminator
- - - - - -
- - - -
- - - 0
- - - S
Enable SCSI Terminator
- - - - - -
- - - -
- - - 0
- - - P
Normal Mode (Output)
- - - - H -
- - - -
- - - -
- - - -
Power Saving Mode (Output)
- - - - L -
- - - -
- - - -
- - - -
Ground (Output)
L - - - - -
- - - -
- - - -
- - - -
DEVICE=C:\IBMRWOPT.SYS /U
CONFIG.SYS example (SMALL-drive used with DOS)
DEVICE=C:\OPTIMO\OPTIMO.EXE
in an available OPTIMO.CFG file you will see
rem timeout 0
adapter IBM #=0
drive IBM3125 cid=2 lun=0
CONFIG.SYS example (FAT-drive used with OS/2)
DEVICE=C:\OS2\SCSI.SYS /N:4
DEVICE=C:\OS2\OPTICAL.SYS /N:4 /U
(some newer OPTICAL.SYS driver support /T:xx parameters (POWER-save option, after xx minutes.))
NOTE: (OPTICAL.SYS parameter)
CONFIG.SYS example (SMALL-drive used with OS/2 V-2.0 or higher)
If you are running OS/2 V-2.1 or below, you MUST replace the
existing FORMAT.COM file in the C:\OS2 directory, with the
FORMAT.COM shipped with the OPTION. (Optical Disk Driver For OS/2 diskette)
(rename the origin FORMAT.COM, do not delete !)
BASEDEV = IBM2SCSI.ADD /LED (only on PS/2 systems used)
BASEDEV = OS2SCSI.DMD
DEVICE=C:\OS2\MO.SYS /D1
°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°
IBM 230MB Magneto-Optical (MO) Disk Drives. (Internal and External)
Product Description
The 230MB MO-drive meets the Small Computer System Interface-2 (SCSI-2) standards set by ANSI.
This drive reads and writes both 128MB and 230MB optical media.
The SCSI supports data transfer rates up to 5 megabytes / sec.
System Type Settings...
The following table indicates some possible combinations of the customization switch settings
for several manufacturer computers.
System Type Position 1 Position 3
------------------------------------------
IBM PC ON ON
Apple Macintosh OFF ON
Sun OFF OFF
DEC OFF OFF
.... for 230MB EXTERNAL Drives
System Type Position 3
----------------------------
IBM PC ON
Apple Macintosh ON
Sun OFF
DEC OFF
DIP SWITCH SCSI-ID / Termination SETUP (230MB - Internal Drive)
SCSI-ID
INTERNAL - DRIVE
DIP-SW
4 3 2 1Apple / Sun / DEC
EXTERNAL - DRIVE
Rotary Switch IBM PC
EXTERNAL - DRIVE
Rotary Switch
SCSI Addr. 7
- 1 1 1
7
F
SCSI Addr. 6
- 1 1 0
6
E
SCSI Addr. 5
- 1 0 1
5
D
SCSI Addr. 4
- 1 0 0
4
C
SCSI Addr. 3
- 0 1 1
3
B
SCSI Addr. 2
- 0 1 0
2
A
SCSI Addr. 1
- 0 0 1
1
9
SCSI Addr. 0
- 0 0 0
0
8
Termination DISABLE
1 - - -
No Terminator conn.
No Terminator conn.
Termination ENABLE
0 - - -
Terminator connected
Terminator connected
Customization Switch Settings (230MB - Internal Drive)
If you are not familiar with the customization switch, use the default settings
(marked with (* )
Write cache is used to improve performance of the Optical Drive by returning
a write complete status when the data to be written has been loaded into the buffer
memory of the Optical Drive. There is a small risk of the data being lost due to a
power loss or drive failure with write caching enabled. The user should choose either
performance improvement (write cache enabled) or fail-save data integrity (write cache disabled)
Position 4 defines how the Optical Drive configures itself after it is turned on or using a SCSI Reset
situation. This setting may be over-ridden by the write caching option chosen in the device driver.
See the README.TXT files that come on the device driver diskettes for OS/2 and DOS for details.
SW-Pos
Setting
Description (INTERNAL drive)
1
ON (*
Enable unit attention on POR/SCSI reset
1
OFF
With Position 3 ON:
Disable Unit Attention on POR/SCSI reset (for Apple attachment)
With Position 3 OFF:
Mode Page 1,2,3,4 support (for DEC/SUN attachment)
2
ON (*
Check SCSI parity
2
OFF
Ignore SCSI parity
3
ON (*
Device type inquiry data is hex 07 (optical disk drive)
3
OFF
Device type inquiry data is hex 00 (hard disk drive)
4
ON (*
Write cache disabled after POR/SCSI reset
4
OFF
Write cache enabled after POR/SCSI reset
(NOTE: with pos 1,2,3,4 set to ON,ON,OFF and OFF
respectively, write cache is disabled after Reset.)
5
ON
No spin-up on POR
5
OFF (*
Spin-up automatically on POR
6
ON (*
Normal Mode
6
OFF
C2 Security Mode
7
ON
Default value of time interval hex FF (Do not enter power-down mode.)
7
OFF (*
Default value of time interval hex 05 (Enter power-down mode after 5 minutes.)
8
OFF (*
Reserved (must remain OFF)
Customization Switch Settings (230MB - External Drive)
SW-Pos
Setting
Description (EXTERNAL drive)
1
OFF (*
Must remain in the OFF position for the External Drive to function properly
2
ON (*
Check SCSI parity
2
OFF
Ignore SCSI parity
3
ON (*
Device type in inquiry data is hex 07 (optical disk drive)
3
OFF
Device type in inquiry data is hex 00 (hard disk drive)
4
ON (*
Write cache disabled after POR/SCSI reset
4
OFF
Write cache enabled after POR/SCSI reset
(NOTE: with pos 1,2,3,4 set to ON,ON,OFF and OFF
respectively, write cache is disabled after Reset.)
5
ON
No spin-up on POR
5
OFF (*
Spin-up automatically on POR
6
ON (*
Normal Mode
6
OFF
C2 Security Mode
7
ON
Default value of time interval hex FF (Do not enter power-down mode.)
7
OFF (*
Default value of time interval hex 05 (Enter power-down mode after 5 minutes.)
8
OFF (*
Reserved (must remain OFF)
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