According to industry analysts, fewer than 20% of mission critical Internet applications achieve internal objectives for continuous availability.  Challenges include maintaining uptime when servers fail, scaling data center capabilities to handle increased load, and protecting infrastructure from network vulnerabilities.

Designed to help organizations achieve their availability objectives, the Barracuda Load Balancer integrates IP load balancing and network intrusion prevention into an affordable and easy to use appliance.  The Barracuda Load Balancer provides comprehensive failover capabilities in case of server failure, distribution of traffic across multiple servers, and integrated protection from network intrusions.

• Internet sites with high traffic requirements, including Web, FTP, media streaming, and content delivery networks
• Hosted applications using thin-client architectures, such as Windows Terminal Services
• Other IP services requiring optimal performance, including SMTP, DNS, RADIUS, TFTP

The Barracuda Load Balancer’s integrated Service Monitor ensures that servers and their associated applications are operational.  In the event of server or application failure, the Barracuda Load Balancer facilitates automatic failover to ensure continuous availability.  The Barracuda Load Balancer also assists in orchestrating scheduled maintenance windows on specific servers while maintaining application availability through other servers in the server farm.

To mitigate risks associated with failures of the load balancers themselves, two Barracuda Load Balancers can be deployed in an active/passive configuration.  In the event of failure of a primary active Barracuda Load Balancer, the secondary Barracuda Load Balancer will automatically activate and assume the identity of the primary load balancer so as to maintain application availability.

Load Balancer Admin Guide Barracuda Load Balancer Datasheet Frequently Asked Questions

 

Model Comparison	Model 240	Model 340	Model 440	Model 640
CAPACITY*
Maximum Throughput	95 Mbps	950 Mbps	950 Mbps	950 Mbps
Real Server Support	10	35	50	250
SSL Offloading/Acceleration		150 TPS	200 TPS	2,000 TPS
HARDWARE
Rackmount Chassis	1U Mini	1U Mini	1U Mini	1U Fullsize
Dimensions (in.)	16.8x1.7x14	16.8x1.7x14	16.8x1.7x14	16.8x1.7x22.6
Dimensions (cm.)	42.7x4.3x35.6	42.7x4.3x35.6	42.7x4.3x35.6	42.7x4.3x57.4
Weight (lbs. /kg.)	12 / 5.4	12 / 5.4	12 / 5.4	26 / 11.8
Ethernet	2 x 10/100	2 x Gigabit	2 x Gigabit	14 x Gigabit
AC Input Current (Amps)	1.0	1.2	1.4	1.8
ECC Memory
FEATURES
Layer 4 Load Balancing
Direct Server Return
Intrusion Prevention
High Availability
VLAN
Layer 7 Load Balancing
Cookie Persistence
SSL Offloading
Content Routing
SNMP
Programming Interface/API
Global Server Load Balancing