Polycom Welding System 3725-77601-001H Manual Do Utilizador

Polycom CMA System Operations Guide 

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Polycom, Inc.

The Simple Recovery Model should be enabled for SQL backup mode. 

The CMA system automatically optimizes its internal database on an ongoing 

basis. It backs up its internal databases daily. The backup files are stored on the 

system’s hard disk. The CMA system maintains the last four internal backups. 

To keep backups for a longer time period, copy them regularly to a different 

location. For more information, see 

 on page 428.

You can integrate the CMA system to an external Microsoft SQL Server 

database. Some information about integrating with an external database:
• CMA systems with 400 or more registered endpoints and redundant 

systems require an external database.

• If you set up an external database, follow your own corporate policies (or 

Microsoft best practices) to back it up and maintain it. The CMA system 

does not back up its external databases.

• Anytime you switch from the internal CMA system database to an 

external Microsoft SQL Server database, some system configuration 

settings, for example the enterprise directory settings, must be 

reconfigured.

• Take steps to minimize database connection failures. For example:

— Ensure you have good network connectivity between the CMA 

system and the Microsoft SQL Server. You may even consider 

co-locating the CMA system with your Microsoft SQL Server.

— Increase the keep alive checks on the Microsoft SQL Server to once an 

hour. 

• If your system does lose connection to the database, you must reboot the 

CMA system to restore login capability; the CMA system does not 

automatically reconnect to the database. For more information, see 

• It is recommended that anytime you reboot the external database server, 

you also restart the CMA system in the same maintenance window.

• You can create the CMA system databases manually using Microsoft SQL 

scripts. Contact Polycom Global Services to request the scripts.

• Anytime you switch from database sources (internal to external or 

external to internal), the default administrator’s password is moved to the 

database as part of the switch.