Application Availability

Array application availability combines local traffic management, link load balancing and global server load balancing with advanced multi-unit clustering to ensure uninterrupted service for business critical applications.

Server Load Balancing for Application Availability

Array APV Series appliances improve application availability by facilitating tight application integration and intelligently load balancing Layer 2-7 traffic based on a broad range of application metrics and health checks. APV appliances also load balance IPS/IDS devices and composite IP-based applications and distribute HTTP(S) traffic based on headers and SSL certificate fields.

Content Routing and Switching

APV appliances support intelligent routing and switching of Layer 7 content to a destination application based on client request information such as URI, HTTP header, cookie, hostname and URL. In addition, the APV supports an extensive set of application-level controls capable of routing user requests to designated servers based on requirements such as inserting, modifying and rewriting cookies.

Application Persistence

APV appliances support connection persistence at Layer 4 based on client IP/port and hash IP, supports Layer 7 application persistence based on client request information such as URI, HTTP headers, cookies, hostname, SSL session ID and URL and supports site-level persistence between users and sites.

Link Load Balancing

APV Series appliances provide a complete application availability solution for load balancing across multiple WAN links. APV appliances detect and monitor ISP link outages and failures in real-time and instantly redirect individual WAN connections across other available links. In addition, algorithms may be set to utilize select links during select time periods for maximum cost-efficiency.

Global Server Load Balancing for Data Center & Application Availability

Deploying application infrastructure at a single location can limit availability and capacity for application and server resources and introduce network latency for geographically disbursed users. Lone datacenters also create the possibility of earthquakes, hurricanes, power outages, human error and equipment failures bringing down applications.

APV Series appliances transparently redirect users away from failed datacenters by continuously monitoring the health of both servers and data centers. APV appliances also load balance application traffic between geographically disbursed datacenter locations based on the proximity and the language of the user, Web site capacity and response times.

Multi-Unit Clustering

In contrast to load balancing solutions that support only high availability pairs, Array APV Series appliances support N+1 clustering with the ability to distribute individual virtual IP instances across multiple systems. For growing sites, applications and deployments, 1+1 solutions become a limiting factor; with APV appliances, organizations can cost-effectively scale their operations, adding Array systems and growing virtual IP capacity as needed, while simultaneously achieving a higher degree of application availability.