Monitor your multi-vendor storage to help ensure your applications get the performance & capacity they need with SolarWinds® Storage Resource Monitor.
SolarWinds Storage Resource Monitor (SRM) gives you multi-vendor storage performance monitoring and alerting to help ensure peak storage performance. Automated capacity planning helps you predict storage shortages, reclaim space, and prevent application outages. SRM integrates with other Orion® Platform products to provide end-to-end visibility into the application stack, and lets you easily troubleshoot performance issues from application to storage.
A mod_perl-based RPC API designed for ease of setup, ease of extension, and rapid development.
Using Presto, you can develop a robust, fully "web-2.0" web application in a day or two.
Oh and it scales.
Take that, Ruby on Rails.