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Manual Chapter: Configuration data storage
Manual Chapter
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About storing configuration data

The configuration details of managed devices (including Enterprise Manager™ itself) are contained in a compressed user configuration set (UCS) file with the extension of .ucs. This file contains all of the information required to restore a device's configuration, and consists of these elements:

  • System-specific configuration files
  • License
  • User account and password information
  • DNS zone files
  • NameSurfer configuration
  • SSL certificates and keys

Enterprise Manager saves UCS files to a UCS archive. You can create a task to save UCS archives for devices at regularly scheduled intervals. Archives that are created and saved on a schedule are called, rotating archives. When the system creates rotating archives, it compares the most recently stored UCS archive file to the current configuration on the device at the specified interval. If there are any differences, Enterprise Manager stores a copy of the current configuration in a UCS archive. If there are no differences, Enterprise Manager does not store an additional copy of the current configuration, which leaves you room to store a higher number of unique historical UCS archives. When Enterprise Manager reaches the maximum number of archives specified to store, it deletes the oldest archive in the rotating archive list. By default, Enterprise Manager stores up to 10 rotating archives each, for itself and every managed device.

Another option for archive storage is to create an archive of a specific UCS for a device, referred to as a pinning an archive. Enterprise Manager also creates a pinned archive of a device's current configuration before it installs new software. Pinned archives are stored until you delete them.

About configuration data for device management

In addition to storing UCS archives of the configuration for each managed device and itself, Enterprise Manager™also stores configuration data required specifically for managing devices. This archive is called an advanced UCS archive and includes:

  • Device properties information
  • Device certificates
  • Custom alerts
  • Certificate lists
  • Historical information, such as the task list and alert history list
  • Rotating archive schedules

Creating an advanced UCS archive for device management files

Enterprise Manager™ stores all of the information required to manage devices in your network and you have the option of creating a UCS archive of this information. Creating a UCS archive for this information ensures that you have a complete backup file for the Enterprise Manager in the event that a system restore is required.

Important: Creating a UCS archive of may involve a large amount of data. Before proceeding, verify first that you have adequate disk space available on the Enterprise Manager system and that there are no tasks currently running. The following script may take several minutes to complete, depending on the number of UCS archives and amount of imported data that is stored on the Enterprise Manager system.
  1. At the command line of the Enterprise Manager for which you want to create a backup UCS archive, log in as root.
  2. Type the following command, where <archive_name> is the path and file name for the archive: em-backup <archive_name>.ucs. The script begins archiving all of the configuration and imported data for each managed device in its network.
  3. When the process completes, move the <archive_name>.ucs file to a remote system for safe storage.

Creating a rotating UCS archive schedule

A device must be listed on the Device List screen before you can create a rotating archive schedule for it.
It is best practice to create a rotating archive schedule for each device in your network so that you always have a copy of a recent configuration. The UCS archive provides your network with added stability in the event that a configuration change results in a need for a system restore. You can create a customized schedule for a specific device, or create several schedules and assign any number of devices to each schedule.
  1. On the Main tab, click Enterprise Management > Tasks > Schedules > Archive Collection. The Archive Collection screen opens.
  2. Click the Create button. The New Scheduled Task screen opens.
  3. In the Archive File Name field, type a name for the rotating archive schedule.
  4. From the Check for Changes list, select the frequency that you want Enterprise Manager to check for configuration changes. Depending on your selection, the screen refreshes to display associated options.
  5. Click Finished to save the settings.
The Archive Collection list screen opens and the new rotating archive schedule appears in the list. If a device in the Assigned list changes its configuration during the interval you specified, Enterprise Manager creates an archive of the device's configuration and adds it to the rotating archives on the Archives Collection screen.

Modifying a rotating UCS archive schedule

  1. On the Main tab, click Enterprise Manager > Tasks > Schedules. The Archive Collection screen opens.
  2. Click the name of the archive schedule that you want to modify. The Properties screen opens.
  3. From the Check for Changes list, select the frequency that you want Enterprise Manager to check for configuration changes. Depending on your selection, the screen refreshes to display associated options.

Creating a pinned archive

Pinning an archive captures a particular configuration for a specific device and is useful for system restoration, or to compare configurations for the purpose of troubleshooting. Pinned archives are saved in the Enterprise Manager database until you remove them. You can use a pinned archive to revert a configuration change for a device.
  1. On the Main tab, click Enterprise Management > Devices > Device List. The Device List screen opens.
  2. Click the name of the device for which you want to create a new pinned archive. The Device Properties screen opens.
  3. On the menu bar, click Archives. The Archives screen opens for the selected device.
  4. Select the check box for one or more archives that you want to pin.
  5. Click the Pin Archive button.
  6. In the File Name field, type a name for the pinned archive you are creating.
  7. In the Description field, type any note that you want to appear next to the pinned archive in the Pinned Archives list.
  8. From the Private Keys list, select an option to include or exclude private SSL keys when storing this archive. If you choose not to store the private keys on Enterprise Manager when a configuration archive is created, you must manually restore the keys in the event that you have to restore the archive.
  9. Click Create. Enterprise Manager creates a pinned archive of the selected device and displays it on the Device Properties Archive screen. The pinned archive is retained until you delete it.

Pinning an existing UCS archive

You can pin any archive contained in a device's archive list.
  1. On the Main tab, click Enterprise Management > Devices > Device List. The Device List screen opens.
  2. Click the name of the device for which you want to create a pinned archive. The Device Properties screen opens.
  3. On the menu bar, click Archives. The Device Archives screen opens.
  4. Select the check box next to the archive you want to pin.
  5. Click the Pin Archive button. Enterprise Manager pins the selected archive and retains it until you delete it.

Changing the maximum number of rotating or pinned archives

By default, Enterprise Manager™ saves 10 rotating archives and 10 pinned archives per device. You have the option to increase or decrease the number of archives stored by default. If you decrease the number saved, you free disk space on the Enterprise Manager device. If you increase the number, you have less disk space for storing other data.

  1. On the Main tab, click Enterprise Management > Options > Archives. The Archive Option screen opens.
  2. In the Maximum Rotating Archives or Maximum Pinned Archives type a new value.
  3. Click Save Changes.
If you reduced the maximum number of rotating archives and the current number of stored archives exceeds the new value, the system deletes the oldest archives until the number of stored matches the new limit. If you set a lower pinned archive limit, the system does not delete currently pinned archives to match the new maximum; you must delete pinned archives manually.
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