Administrator's Guide

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Cisco Unified Attendant Console Administration and Installation Guide
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Chapter 3 Hardware and Software Requirements
Server Requirements
Additional Server Considerations
This section contains important information you should know about your server hardware and software.
SQL Server Express 2008 Limitations
Microsoft SQL Server 2008 Express has the following limitations:
• Can access only a single CPU
• Uses only 1 GB of RAM
• Has a maximum database size of 4 GB
• Cannot support server resilience
You should consider using Microsoft SQL Server Standard or Enterprise if you expect your Cisco
Unified Attendant Console Advanced deployment to support any of the following:
• More than 10 operators
• More than 500 calls per operator per day
• A directory containing more than 10,000 contacts
• Cisco Unified Attendant Console Advanced server resilience
If a Cisco Unified Attendant Console Advanced system outgrows Microsoft SQL Server Express, you
can upgrade the database to Microsoft SQL Server Standard or Enterprise. Multiple SQL databases are
not supported.
SQL and Cisco Unified Attendant Console Advanced Server Resilience
Cisco Unified Attendant Console Advanced server resilience uses SQL replication, which is not
available in Microsoft SQL Server Express. Therefore, if you plan to implement server resilience, you
must use Microsoft SQL Server Standard or Enterprise on the Publisher server. The Subscriber server
can use Microsoft SQL Server Express, Standard or Enterprise, depending on the size of your Cisco
Unified Attendant Console Advanced deployment. The Publisher and Subscriber servers can be part of
a Microsoft Domain, so long as they can access each other by hostname.
Note The Publisher and Subscriber servers must use the same version of Microsoft SQL Server.
Windows Updates and Service Packs
Cisco Unified Attendant Console Advanced server supports the application of all Microsoft Windows
Updates and Service Packs.
Java auto-updates are not supported because they sometimes fail, rendering the system unusable.
Data Backup
You should provide backup facilities to ensure application and data integrity in the event of unforeseen
circumstances. If possible, choose a solution that offers one-step disaster recovery, such as the ability to
restore the complete contents of a hard drive from a bootable floppy disk and the backup media.