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The DISK Media Maintenance program is used to format, initialize and verify SCSI disks connected to the ND-100 SCSI host adaptor.
The program is designed to handle the
- Micropolis 1375 SCSI disk drive
- CDC EMD 97201 SCSI disk drive
(valid for DISK-MM-B00). From ND-210523I program description: DISK-MM "is now able to format SCSI disks not delivered by ND".
>SELECT-DEVICE <Adaptor> <Id number>
This command will select a device for use by other commands. Commands that uses a device for operations will ask for it if it is not defined by this command.
Legal answers for adaptor are:
- Adaptor name (ADAPTOR-n, n=1:4).
- Adaptor number (1:4).
- Logical device number for adaptors data field (2202B:2205B).
- Hardware device number for adaptor (144300B, 144400B, 144500B, 144600B).
Legal answers for ID numbers are 0:7. ID number 7 is normally the SCSI host adaptor, and ID 0 is normally equivalent to "DISC-SCSI-1" which is the boot disk.
The default adaptor is "ADAPTOR-1" or the last selected adaptor, and the default ID is "0" or the last selected ID number.
>CONVERT-DISK-ADDRESS <Address type> <Address>
This command will convert a disk to different address modes and and numeric systems.
The address type could be "Media", "Logical-SINTRAN" or "page".
- Media address
- A media address is the address used on basis of the disk drives sector size.
- A logical-SINTRAN is the address used on basis of SINTRAN's block size, which always is 1024 bytes/sector.
- A page address is the address used on basis of SINTRAN filesystem's block size, which always is 2048 byte/sector.
Formats and initializes the disk.
Special for Micropolis 1375:
Before format starts, MODE-SENSE default page 3 and 4 is set to current, and cylinder skew and track skew is optimized.
Prepares the disk for use under SINTRAN.
This command will print out various static and dynamic information concerning the selected disk.
This command will print out the setting of all parameters available in the command "SET-PARAMETERS".
This command will print out all sectors reassigned with the command "REASSIGN". The sectors is listed in historical order.
This command will print out all sectors refreshed with the command "REFRESH-DATA". The sectors is listed in historical order.
>REASSIGN <Media address>
This command will reassign one single sector and its data on the disk to a different physical area, but to the same logical area.
>REFRESH-DATA <Media address>
This command will try to read one sector and write it back trying to cure temporary parity errors.
>SET-PARAMETERS <Parameter> <Value>
>VERIFY <From> <To>
Data verification. The addresses are given in media blocks. Default range: <0, LastBlock>.
- ND-210523G program description, page 15