User`s manual

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The first member of the Tape Dump File Map Entry structure is File
Number (fileno). The normal range of values for fileno is from 1 to
MAXFILES. The value $FFFFFFFF in fileno flags an invalid and
unused File Map Entry.
Tape Dump Example:
1) Continue System Start Up
2) Select Alternate Boot Device
3) Go to System Debugger
4) Initiate Service Call
5) Display System Test Errors
6) Dump Memory to Tape
Enter Menu #: 6<Return>
Do you wish to dump memory (N/Y)? <Return>
Controller LUN = 04, Device LUN = 00.
Change DLUN and/or CLUN (Y/N)? <Return>
Define memory blocks to be dumped.
File Number:1
Starting Address = 00000000? <Return>
Ending Address + 1 = 01000000? 10000<Return>
Define another memory block (Y/N)? Y<Return>
File Number:2
Starting Address = 80000 <Return>
Ending Address + 1 = 100000 <Return>
Define another memory block (Y/N)? <Return>
The following memory blocks have been defined:
File: 1 Start: 00000000 End: 00010000
File: 2 Start: 00080000 End: 00100000
Insert tape..Do you want to continue (N/Y)? <Return>
Rewind command executing
Erase Tape (Y/N)? <Return>
Retension Tape (Y/N)? <Return>
Writing file # 0
Writing file # 1
Writing file # 2
Dump finished. You may remove tape.