HP 3000 Manuals HP 3000 Manuals
NMCONFIG and NMCONFIX Files Dynamic Configuration uses both files NMCONFIG.PUB.SYS and NMCONFIX.PUB.SYS to manage the devices created by the DTS subsystem. When users wish to make any dynamic change, NMMGR will be used to modify the configuration in NMCONFIG.PUB.SYS. When DTCCNTRL is invoked, either within or from outside of NMMGR, NMCONFIG will be compared to NMCONFIX and the desired changes will be made to the system configuration. When the operation has completed successfully, the changes will be written to NMCONFIX. The configuration in NMCONFIX will always match the actual configuration of the DTS subsystem. If any errors are encountered, then information will be saved in the NMCONFIG file that will allow DTCCNTRL to be re-invoked to complete the changes at a later time. If an operation is partially successful, then those changes that are successful will be written to NMCONFIX. For example, if you delete two ldevs and the second ldev can't be deleted because it is in use, then DTCCNTRL will save information that will allow the second ldev to be deleted once the device is no longer in use.
CAUTION If ANY other configuration file is copied to NMCONFIG.PUB.SYS or NMCONFIX.PUB.SYS then dynamic configuration will be disabled until a DTS shutdown and restart is done or the system is rebooted. This includes other files from the same system or files copied from other systems.
If there is some operation that fails, and you wish to undo the change, you can use NMMGR to change the appropriate screens back to what they were and then invoke DTCCNTRL. Follow the steps below to dynamically configure DTS changes. Refer to chapter 3, for more detailed steps on the DTS configuration process using NMMGR for host-based and PC-based DTC management, respectively. 1. Run the NMMGR program and make all desired DTS configuration changes. The network management configuration file must be NMCONFIG.PUB.SYS for the configuration changes to become active dynamically. _________________________________________________________________ NOTE If you are changing profile characteristics, you can see which ldevs and DTCs will be affected by the change by pressing the [Assoc Ldevs] function key on the profile screen corresponding to the profile you are changing. After pressing this key, you will see a list of all ldevs using this profile in the DTCs configured in DTS. _________________________________________________________________ 2. After successful validation and cross-validation, NMMGR will prompt you as to whether you want DTS changes to take effect now. The following prompt will appear: Table 7-4. ---------------------------------------------------------------- | | | Do you want DTS changes to be become active now (Y/N)? | | | ---------------------------------------------------------------- | | | | ---------------------------------------------------------------- | | | | Y = | all changes made take effect now | | | | ---------------------------------------------------------------- | | | | N = | all changes made will take effect upon next dynamic | | | configuration or system boot | | | | ---------------------------------------------------------------- | | | | H = | help | | | | ---------------------------------------------------------------- | | | | ---------------------------------------------------------------- | | | > | | | ---------------------------------------------------------------- If you type Y, dynamic configuration changes will take effect now. NMMGR calls DTCCNTRL which dynamically implements the DTS changes made in NMMGR. If you type N, dynamic configuration changes will not take effect now. Your changes will take effect the next time dynamic configuration is invoked, a DTS shutdown/restart is performed, or the system is rebooted. Dynamic configuration changes can be implemented later by calling DTCCNTRL from the CI prompt any time thereafter. Or you can run NMMGR again and select validate DTS/Link. See the section "DTCCNTRL After NMMGR Exit," for steps on how to invoke the DTCCNTRL command at the CI prompt. If you type H, you will see help text describing the options. 3. If you selected Y in step 2 above and the DTS changes you have made are dynamically configurable, no other action is required and changes will become active automatically. You will see a message on the screen indicating that no other actions are required. If the DTS changes you have made require additional actions before changes become active, refer to chapters 5 and 6, step 9, for more information. If this is the case, you will see messages on the screen indicating what actions are required before changes become active. Refer to Table 7-3 for a list of configuration changes that can be modified dynamically. 4. After viewing the messages describing what actions are required, if any, enter [RETURN] when you see the prompt: (Press RETURN when finished viewing screen contents.) You will return to the Validation screen. From here you can make further changes or exit NMMGR.