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The configuration save and restore feature allows you to upload nonvolatile random-access memory (NVRAM) to out-of-node storage to provide a backup of node configuration data. Downloading NVRAM back into a system controller enables recovery from a corrupted or replaced system controller. It also allows you to generate a "template" for use in configuring multiple Cisco 6100 Series systems at the same time.
This chapter includes the following sections:
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Note NVRAM is where all of the provisioning and configuration information for the Cisco 6100 Series system is stored. |
See Table 1-1 for a summary of the compatibility among Cisco 6100 Series systems and ViewRunner releases. Refer to the Release Notes for ViewRunner for Windows Release 3.0.0 for the latest information about which Cisco 6100 Series system releases are supported.
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Caution Saving the configuration of the Cisco 6100 Series system does not disrupt service. Restoring the Cisco 6100 configuration resets the system, which causes a temporary loss of service. |
Cisco recommends that you use the TFTP server on the same workstation as the ViewRunner server. The TFTP server must be configured correctly on the workstation. The TFTP IP address and TFTP path are configured during ViewRunner installation. The wizard validates that the images are present in the TFTP path on the ViewRunner server workstation, even if another workstation has been selected as the TFTP server. If the images are not found, a warning message displays, and you are given the choice to cancel or to continue. However, you are not given a chance to change the path to locate the images.
Consider the following important guidelines when saving or restoring a configuration:
Only Cisco 6100 Series systems that are loaded with 2.1 images or later can be saved and restored. The Cisco 6100 Series system does not need to be attended during the process. Software images and relationships to module hardware are also saved and restored.
Only Cisco 6100 Series systems loaded with 2.1 images or later can be saved and restored. The Cisco 6100 Series system does not need to be attended during the process. Software images and relationships to module hardware are also saved and restored. Therefore, a restore configuration restores the software release that is executing on the Cisco 6100 Series system at the time of the save in addition to restoring the chassis, module, port, subscriber, pool, and service provisioning information. That is, if you restore configuration data from one node to another node that is running a different software version, the restore changes that node's software version.
Consider the following guidelines to remember when saving a configuration:
The saved configuration files are placed in $VRS_HOME/NSS/<ip_address>/<name>. The name consists of the <ip_address>.<date>.<time>.NSS. The number of saved configurations can be varied using parameters in $VRS_HOME/conf/vrconstants.conf. The default is five files per Cisco 6100 Series system. The file format is compatible with both ViewRunner for HP OpenView and ViewRunner for Windows. The file can be used as a template for provisioning multiple Cisco 6100 Series systems with the same configuration or for disaster recovery. The images must be located in the directory specified by the TFTP path that is configured during ViewRunner installation.
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Caution Do not edit the saved .NSS file. Cisco cannot be responsible for what might happen if you have edited this file by hand. The wizard is designed to prevent mistakes and system outages. |
To save NVRAM to a file using the Save Configuration wizard, complete the following steps:
To save more than one Cisco 6100 Series system's configuration, click and drag a selection box around the icons for the systems whose configurations you want to save. Additional Cisco 6100 Series systems can be selected before the operation is started by pressing the Control key and clicking the icons for those systems.
Step 2 Choose Save Configuration from the Configuration menu on the ViewRunner Submap dialog box (or right-click the mouse) to use the Save Configuration wizard to save NVRAM to a file.
Step 3 Alternatively, you can select Save Configuration from the File menu on the 6100 Chassis View window, as shown in Figure 8-1.
Step 4 The first window for the Save Configuration wizard in ViewRunner opens, as shown in Figure 8-2. This window provides a description of the wizard and lists the Cisco 6100 Series systems you selected for configuration save.
Step 5 Verify that the Cisco 6100 Series system choices are correct and click Next to continue with the configuration save. While the configurations are being saved, the progress is reported in the Configuration Wizard window.
Step 6 Double-click on any of the Cisco 6100 Series systems in the save list to view the status of the progress, as shown in Figure 8-4, for that individual Cisco 6100 Series system.
Step 7 Continue monitoring the status until all the configurations have been completed. If you do not want to attend the configuration saves, you can always consult the log files later. Cancel closes the wizard, but it does not stop the processes that are already in progress.
A restore configuration restores saved software images and relationships to module hardware. Therefore, a restore configuration restores the software release executing on the Cisco 6100 Series system at the time of the save in addition to restoring the chassis, module, port, subscriber, pool, and service provisioning information. That is, if you restore configuration data from one node to another node that is running a different software version, the restore changes that node's software version.
The restore configuration procedure requires a TFTP server. Cisco recommends that you use the TFTP server on the same workstation as the ViewRunner servers. The TFTP server must be configured correctly on the workstation. The TFTP IP address and TFTP path are configured during ViewRunner installation.
The wizard validates that the images are present in the TFTP path on the ViewRunner server workstation, even if another workstation has been selected as the TFTP server. If images are not found, a warning message displays and you are given the choice to cancel or continue.
ViewRunner supports restoring to nodes managed through the inband channel, provided that both the current system controller software version and the system controller version saved in the .NSS file support inband upgrades.
Consider the following guidelines before you restore your configuration:
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Note If either the images or the TFTP server is unavailable, the restore operation fails. |
To use the Restore Configuration wizard, follow these steps:
To restore more than one Cisco 6100 Series system's configuration, click and drag a selection box around the icons for the systems whose configurations you want to restore. Additional Cisco 6100 Series systems can be selected before the operation is started by pressing the Control key and clicking on the icons for those systems.
Step 2 Select Restore Configuration from the Configuration menu on the ViewRunner Submap dialog box (or right-click the mouse). The Restore Configuration wizard starts.
Step 3 Alternatively, you can select Restore Configuration from the File menu on the 6100 Chassis View window, as shown in Figure 8-5.
Step 4 The first window for the Restore Configuration wizard in ViewRunner opens, as shown in Figure 8-6. This window provides a description of the wizard and lists the Cisco 6100 Series systems you selected. Be sure to read the window carefully to understand the warnings and consequences of continuing with the restore.
Step 5 Select the configuration file you want to restore. You can enter the save file name or browse the directory $VRS_HOME/NSS/ for the file you want to restore.
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Note All selected Cisco 6100 Series systems are restored with the configuration in the chosen save file. |
Step 6 Enter or browse for the .NSS file you would like to restore, as shown in Figure 8-7 and Figure 8-8.
After selecting the .NSS file, if the wizard detects that the .NSS file was saved from the same node you are restoring, Restore Subtend Info is checked by default. Otherwise, the option is not checked. You can change the default by clicking on the check box.
Step 7 On the window shown in Figure 8-8, if Restore Subtend Connection Information is checked, the subtend information is restored.
Step 8 Verify at the Confirm Selection dialog box, as shown in Figure 8-9, that all the information for the restore is correct, then click OK to proceed.
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Note If the images or the TFTP server are not available, the restore operation fails. If the TFTP server is on a different machine than the ViewRunner server, then the error message will always be displayed. |
Step 9 Monitor the status of the restore from the status line of each Cisco 6100 Series system as it happens, or view the log file at any time. You can get a detailed status of the restore progress for any Cisco 6100 Series system by double-clicking on that Cisco 6100 Series system in the Status column, as shown in Figure 8-10.
Step 10 Continue to monitor the progress of the restore process which is shown in the status line as shown in Figure 8-11.
Step 11 Double-click the status line of a Cisco 6100 Series system that shows a restore failure to get a log of the exact problems encountered, as shown in Figure 8-12.
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Note If you try to cancel the configuration restore before it completes, you get a message warning you that there are still operations in progress. If you click Yes to cancel anyway, the wizard closes, but the operations that are already in progress (not those still pending) are not cancelled. You also receive a warning if you try to add Cisco 6100 Series systems to the list after the configuration restore process has begun. |
The Status dialog box in Figure 8-13 appears, showing that the progress is complete.
Posted: Thu Mar 2 10:21:43 PST 2000
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