High Availability

Fully-redundant and easy-to-use hardware design

The Gemini’s fully-redundant design offers dual controllers, dual power supplies, non-disruptive updates, and lights-out access – no external controllers or gateways required. With 90% fewer components than competing designs, Gemini arrays consume little energy and generate minimal heat, increasing reliability. Capacity can also be expanded without interruption.

Redundant Everything

Gemini systems feature dual controllers and dual power/cooling modules. Both the controllers and the power/cooling modules are hot-swappable for easy replacement. The dual controllers interconnect and communicate via the passive midplane.

Power/cooling modules each supply fully redundant power, with the Gemini system capable of running at full power from just one power/cooling module. The system features variable fan speed to optimize power consumption. Gemini systems offer non-disruptive software updates to enable zero-downtime maintenance.

All components are removable without moving the Gemini system from the rack. Flash-optimized RAID protects data in the event of a flash drive failure, and flash drives can be easily hot-plugged from the front of the system.

Lights-out Management

Each controller also features its own dedicated lights-out management (LOM) for remote IP-based control, including console/terminal access, power control, and thermal monitoring. The LOM operates on standby power, so even if the controllers are accidentally shut down, administrator can easily power it back on via the LOM.

Flash Protection

Gemini systems incorporate flash-optimized RAID 5, 6 and 10 protection, enabling 1, 2, or even half of the flash drives to fail simultaneously with no interruption in data access or data loss. Users may also elect flash drives to serve as hot-spares to automate resynchronization in the event of a failure.

Phone Home Capability

Gemini systems provide email and SNMP alerts. Users can set up multiple recipients for alert notification and configure which severity events they want to be notified about. The system automatically tracks temperature, power status, flash drive status, network connectivity, storage utilization, and much more.