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 remote X.25 addresses and security remote X.25 calling address
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 term type file name/number change hardware handshaking change allow :HELLO
logon
Delete: 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 configuration
is invoked. The terminals must be logged off and the printers must
be not spooled. |
Host-based X.25 configuration changes: change level 1, 2, or 3 configuration
| Use
DTCCNTRL to: Stop X.25/PADSUP Start X.25/PADSUP (see Configuring Systems for Terminals, Printers,
and Other Serial Devices for more information)
|
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)
|
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: 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)
|
