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The QoS databases contain the policies and other definitions you create in the Policy Manager application. Distribution Manager uses the information in these databases to apply your policies to the identified network devices.
These topics cover tasks associated with QPM-PRO database management.
QPM-PRO maintains your QoS definitions and policies in a QoS database. These databases are maintained on the machine that runs the QoS Manager service in the database directory in the QPM-PRO installation directory.
You can create more than one database. Typically, you should define no more than 200 devices in a single database. If you have more than 200 devices in your network on which you want to configure QoS, divide them into logical groups and define the groups in separate databases. For example, you could create one database for core devices, and another database for edge devices. The 200 device limitation is not a rigid one, but is based on Cisco test modeling.
When you open an existing QoS database, it is loaded from the machine running QoS Manager. If you are running the remote version of QPM-PRO, the remote location of QoS Manager can affect your ability to open or save databases:
The first time you use a database that was created with a previous version of QPM-PRO, it is automatically converted to a QPM-PRO 2.0 database. The conversion process updates the policies so that they are compatible with QoS features supported by QPM-PRO 2.0.
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Note Although the conversion is done automatically, you must save the database for the conversion to be permanent. Once saved, there is no retrieval of the previous version of the database. See Saving a Database for more information. |
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Note There is no backward conversion. Databases that were created or converted using QPM-PRO 2.0 cannot be read by older versions of QPM-PRO. |
You will receive a report with policies that were not converted.
"Planning for Quality of Service"
You can open QoS databases managed by QoS Manager.
Save your work in the currently open QoS database.
Step 1 
From the Policy Manager, click the Open Database button, or select File>Open. QPM-PRO opens the Open Database window.
Step 2 Select the database you want to open and click OK.
If a more recent copy of the database resides on your local machine (because QoS Manager was unavailable the last time you saved the database), QPM-PRO gives you the option of opening the local database or the database on the QoS Manager machine. If you open the QoS Manager database, any changes you made to the database saved on the local disk are lost.
You can create a new QoS database when you want to isolate new policies from old policies, divide your devices between databases, or experiment with policy definitions.
Save your work in the currently open QoS database.
Step 1 
From the Policy Manager, click the New Database button, or select File>New>Database.
QPM-PRO creates a new database. If the currently open database has not been saved, QPM-PRO prompts you to save it before creating the new database.
When you save the new database, QPM-PRO prompts you for a file name for the database.
You must periodically save your changes to the QoS database. However, saving your changes to the database does not apply those changes to the network. You must use Distribution Manager to deploy your new or changed policies to the network.
When you use the Save or Save As function, a description field is available below the database name. This field is also added to the database list in the Save Database window, Open Database window in the Policy Manager, and in the Create Job window in the Distribution Manager. In addition, you can explicitly request to add a description by using the Edit Database Description function from the File menu in the Policy Manager.
Step 1 
From the Policy Manager, click the Save button, or select File>Save.
If QoS Manager is not available when you save try to save the database, the database is saved to your local disk. Check the machine that is running QoS Manager to ensure it is running properly and try saving the database again.
You can change the name of a QoS database by saving it using a new name and deleting the old database.
Step 1 Open the database you want to rename in QPM-PRO and select File>Save As.
QPM-PRO opens the Save Database window.
Step 2 Enter the new name for the database and click OK.
Step 3 Click the Open Database button, or select File>Open to open the Open Database window.
Step 4 In the Open Database window, select the old database and click Delete.
QPM-PRO deletes the old database.
Step 5 Click Cancel to close the Open Database window without opening another database.
If you no longer need a database, you can delete it. The database should not contain any active policies.
Ensure that the database you intend to delete does not contain active policies.
If the database contains policies you distributed to the network, and you delete the database without first deleting the policies, the policies remain on the devices. QPM-PRO cannot recognize these policies as having been created originally in QPM-PRO, so to change or remove them once you delete the database you must use device commands directly on the devices.
If the database contains policies that you distributed to the network, and you no longer want those policies to be active on the network, delete the policies from the database and use Distribution Manager to distribute the database. This removes the unwanted policies.
Step 1 Ensure that the database you want to delete is not open in QPM-PRO.
Step 2 Click the Open Database button, or select File>Open to open the Open Database window.
Step 3 In the Open Database window, select the old database and click Delete.
QPM-PRO deletes the old database.
Step 4 Click Cancel to close the Open Database window without opening a another database.
QPM-PRO can recover changes made to a database after QoS Manager becomes unavailable. If you are editing a database when QoS Manager becomes unavailable, QPM-PRO saves the database to the local disk. The next time you open the database from that machine, you are given the option to open the local database or the database on the QoS Manager machine.
Otherwise, QPM-PRO does not include special facilities for backing up and recovering QoS databases. You must include these databases in your normal backup operations. You can recover the QoS databases just as you recover any other file. There are no special considerations.
QPM-PRO maintains the databases in the database folder within the QPM-PRO installation folder on the QoS Manager machine.
You can restore a previous database version. This feature applies to databases for which a job was created even if not actually deployed. See "Distributing Policies to Network Devices" for more information.
Posted: Tue Oct 1 12:56:29 PDT 2002
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