Upgrading Or Updating Cdf - IBM 3745 Series Connection And Integration Manual

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Upgrading or Updating CDF
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There are two related procedures that use the MOSS· CDF function to change the
data in the configuration data file (CDF):
• CDF Upgrade
This procedure causes the CDF to record
all hardware changes that you are
making to the telecommunication lines connecting to the 3745. These include
LlCs and cable changes for LlCs, token-ring adapters· (TRA), and high speed
scanners (HSS).
Note: The Upgrade function is disruptive. While using it, all lines attached
to the CCU that is being upgraded have to be taken out of operation for
15 minutes and the control program must be re-Ioaded.
• CDF Update
This procedure causes the CDF to record
certain hardware changes that you
are making to the telecommunication lines connecting to the 3745.
It also
displays or modifies the telecommunication line parameters.
When to Use
Upgrad~
or Update
Not Always Necessary - - - - - - - - - - - - - - - - - - - - ,
It is not always necessary to change the CDF:
• If you remove or install an
Ethernet LAN AUI cable, no CDF change is
necessary.
• Another example is if you replace a
Lie
by a spare LlC of the same type,
and do not change the line configuration. If you are unsure, use the
Display/Update CDF procedure, and verify the actual configuration.
At Initial Installation
First perform an Upgrade for the
hardware changes, then, if you want to verify or
change the line parameters, perform an Update.
During a Later Modification
If you want to display or modify
line parameters, perform an Update.
If you have made
TRA cable change, perform an Upgrade.
If you have made other hardware changes, you can use either Upgrade or
Update depending on the changes you made. In general, use Update for a small
number of hardware changes; use Upgrade for many changes, but:
• If the MOSS is not alone, you· can· use Update to record hardware changes
without halting your system. You can at the same time make line parameter
changes.
The only disadvantage is the time it takes to enter each hardware change and
the possibility of errors during data entry.
• If you can stop your system approximately 15 minutes, use Upgrade. The
hardware changes are put into the CDF automatically, quickly, and are less
error prone.
Chapter 5. Integration Procedures
5-7