Forum Discussion
peter_booth_716
Nimbostratus
NimbostratusWhy isnt Active/Active the norm?
I'm a technologist who admits to having some strong technical prejudices- - I hate slow applications and websites ... which is why I choose to work in performance - I prefer vendors who ...
hoolio
Cirrostratus
CirrostratusHi Peter,
The major drawback of active-active is that you risk overloading both units past 50% and then having a complete failure if one unit goes down.
F5 has added support for device service clustering in v11. This allows you to cluster up to 8 devices (currently, with higher counts targeted) and run groups of VIPs on a single unit. This allows you to achieve higher overall device utilization.
Release Note: BIG-IP LTM and TMOS version 11.0.0
https://support.f5.com/kb/en-us/products/big-ip_ltm/releasenotes/product/relnote_11_0_0_ltm.htmlltm_rn_1100_new
Device Service Clustering
In this release, the Traffic Management Operation System (TMOS) within the BIG-IP system includes an underlying architecture that allows you to create an N+1 redundant system configuration, known as device service clustering (DSC). This redundant system architecture provides both synchronization of multiple BIG-IP configuration data and high availability at user-defined levels of granularity.
Aaron
