IBM 3745 Service Functions page 238

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Save Disk
Save Disk Contents on Diskettes
This function should be performed by the customer.
The 3745 Advanced Operations Guide gives the detailed procedure.
This function should be used:
• To create a backup copy of the diskettes at installation
• To copy the MOSS disk files after new MCFs have been installed
• To copy the disk when the followings have been modified:
Configuration data file (CDF)
or IPL port tables
or control program procedures.
• At regular intervals to keep the backup diskettes at the latest disk level.
The reason for this copy is to allow a later restore from the diskettes to the
disk, either because the data of the disk is not valid, or the disk is physically
damaged (bad tracks).
Save complete disk - - - - - - - - - - - - - - - - - - - - - - - - ,
You must save the complete disk contents on the five backup diskettes. You
cannot save only part of the disk.
Diskette Terminology
• The word mount, used either on the console screens or in the text that
follows, means:
1. Insert the diskette into the diskette drive.
2. Close the diskette drive (by turning or pulling the door latch).
• All original diskettes (either initial installation or new EC) come in two sets:
Normal
Backup
Five diskettes (primary, secondary, third, fourth, and fifth).
A duplicate set of the above five diskettes.
• When saving the contents of the MOSS disk on the diskettes, the prompt
will refer to mount FIRST, SECOND, THIRD, FOURTH, or FIFTH diskette
respectively (you can use any diskette; they will be overwritten).
Once the contents of the MOSS disk are saved on the diskettes, the prompt
will refer to PRIMARY, SECONDARY, THIRD, FOURTH, or FIFTH diskette
respectively.
They are now specific diskettes. Do not forget to label the diskettes and
diskette covers accordingly.
Chapter 11. Disk-Diskette Management Functions
11-5