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Dynamic Configuration enables you to change the configuration of the DTS
subsystem by applying the configuration changes made in NMMGR without
rebooting the system. Such configuration changes include adding or deleting
ldevs, adding or deleting DTCs, modifying most parameters of profiles, or DTCs,
changing the number of non-nailed ldevs. See for a complete list of changes
that can be made dynamically. (Some changes will require additional action,
such as resetting the DTC, before the change is completed.)
NMMGR can keep up to 70 changes. This means that you can change a maximum of
70 different screens before you invoke DTCCNTRL. After the 64th
change NMMGR displays a warning that tells you the limit is near. If more than
70 changes are made NMMGR warns that the current change will not take effect
using DTCCNTRL. Those changes made after 70 entries will not be kept
and can not be made dynamically. After DTCCNTRL is invoked and the
changes were successful, NMMGR can again keep up to 70 new changes. Those
changes that were not successful will be saved so they can be retried at a
later time. When a new DTC is added NMMGR considers this to be one change even
if you save data on many screens to configure this DTC.
All operations that delete ldevs are non-destructive. This means that if an
ldev to be deleted is in use, then the delete is not performed. You must take
the appropriate action to free the device. For example, you must stop the
spooler on a spooled serial printer or log off the session on a terminal ldev.
If multiple ldevs are deleted, then only free ldevs are deleted. Those ldevs
that were not free will be processed again the next time DTCCNTRL is
invoked.
Some changes may affect more than one user. Usually this may happen when the
change is to a DTC characteristic such as adding a card. This is because the
DTC will need to be powered off or reset. Users on other DTCs are not affected.
Some changes will require additional steps to complete once DTCCNTRL
has made the desired changes. These possible additional steps are: logoff any
sessions or close any jobs that access the changed devices, stop and restart
the spooler if the device is a printer, stop and the start X.25/PADSUP, reboot
or reset the DTC. DTCCNTRL will display a message when these steps
are necessary and tell you which DTCs are affected.
Refer to Table 7-1 "Dynamically Configurable
Tasks" for a list of configuration changes that can be modified
dynamically.
Table 7-1 Dynamically Configurable Tasks
| Task |
Action Required for Change to Become Active |
Add/configure new terminal/printer
Add/delete class name
Change DTC event logging class
Host-based X.25 configuration changes:
- maximum number of PAD connections
- X.25 link name
- remote X.25 addresses and security
- X.25 allow access
- remote X.25 calling address
- PAD password
Change SNMP filter
Change NLIO from N to Y in terminal profile
Increase number of non-nailed TIO/PAD ports |
No action; changes take effect dynamically |
Change terminal to printer or vice versa*
Change device profile characteristics:
- change line speed
- change term type file name/number
- change modem type
- change speed/parity
- change hardware handshaking
- change reset HP terminal
- change allow :HELLO logon
- change record width
Delete:
- terminal/printer*
- ldev*
- DTC*
Decrease number of non-nailed TIO/PAD ports* |
Logoff any sessions or close any jobs associated with changed devices. If
device is a printer, stop the spooler.
* For these changes, the device must not be owned when dynamic
configuratio is invoked. The terminals must be logged off and the printers
must be not spooled. |
Host-based X.25 configuration changes:
- change PAD access
- change level 1, 2, or 3 configuration
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Use DTCCNTRL to:
- Stop X.25/PADSUP
- Start X.25/PADSUP
(see
Configuring Systems for Terminals, Printers, and Other Serial
Devices for more information)
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| Add/configure new DTC |
Reboot or reset DTC
or
Perform automatic configuration |
Add/configure a TIO card
Change DTC IP address
Change AFCP/management timers
Change SNMP MIB data
Change SNMP trap destination |
- Logoff any sessions that were logged on through the changed DTC
- Reboot DTC
You may also use TermDSM to reset the DTC (see Troubleshooting
Terminal, Printer, and Serial Device Connections or more
information)
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Change from host-based TIO to host-based X.25
Change DTC LAN address
Change DTC name
Change DTC node name
Change from PC-based to host-based or vice versa
Change NLIO from Y to N in terminal profile
Change initially spooled in printer profile
Change HP 3000 characteristics:
- node name
- link name
- physical path of LANIC
Add X.25 card to DTC when none previously existed |
- Use DTCCNTRL to shutdown/restart DTS
- Reboot DTC
You may also use TermDSM to reset the DTC (see Troubleshooting
Terminal, Printer, and Serial Device Connections for more
information)
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