High Availability
High availability, load-balancing and failover features make it possible to deploy a high-traffic, high-load, multiple server communication system.
User accounts can be synchronized with Active Directory or any other LDAP-based directory service, to mirror accounts.
- Active Directory Integration
- Professional file system caching storage or DB account storage
- Load-balancing / full failover configuration support
- Backup and recovery to remote file servers
- Server Monitoring- disk space, memory, CPU utilization
- Automatic Service Watchdogs
- Distributed services
- Enhanced memory architecture
- SMP Multiprocessor and multi-core CPU support
- MDA Mode/Processing Queues for high-traffic servers
- DNS Smart Cache to process 1000s of queries per second
- TCP/IP Tunneling front-end for VPN-like functionality
Database Storage
Database holds accounts, lists, queues, logs and other data which are frequently accessed throughout server operation. This allows independent backups and reuse of stored information from within external applications. Further it servers as backend for GroupWare and cache for WebMail Live. Dedicated DB server should be deployed for thousands of accounts and large GroupWare repositories. Any of the below mentioned engines can be recommended.
- Multi-threaded ODBC compliant driver for MS SQL, Interbase, Oracle, FireBird
- User installable mySQL, SQLite, or ODBC 64-bit driver
- Holds accounts, lists, queues, logs, any reusable operational data
- Backup database connection
- Database Migration (Accounts/Anti-Spam/GroupWare..)
Example of a high-available server configuration, with HW load-balancer and distributed services. Smaller machines are failover servers.
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