Summary of "Google Implementation of Open Rack V3"
Summary
The video presents Google’s implementation of the Open Rack V3 (ORv3) specification, focusing primarily on the 48-inch deep rack option derived from the ORv3 base specification’s Option 2. The key technological concepts and product features discussed include:
Rack Dimensions and Capacity
- External dimensions: 48” deep, 28” wide, approximately 81” tall.
- Internal opening: 24” wide, 392 rack units (OOU) vertical space.
- Load rating: 3,000 lbs (approx. 1400 kg), with about 2200 lbs payload capacity after accounting for rack weight.
- Tested for transportation shock, vibration (per ACM specs), and seismic events with provisions for additional bracing.
Design and Flexibility
- Sidemounted bus bar (unlike Option 1’s central bus bar), allowing full unobstructed rear access for integration, maintenance, and repair.
- Two rack depth options: 32” and 48” (focus on the 48” deep rack).
- Configurable via a catalog of brackets, fillers, and adapters.
- Supports industry standard equipment (21” OOU and 19” EIA payloads).
- Adapter rails allow conversion between OOU and EIA spacing.
- Ability to accommodate shallow, deep, or hybrid machine form factors within the same rack.
Power and Cable Management
- Supports both 48V DC power distribution and AC PDU integration.
- Flexible power architectures demonstrated, including racks with both DC and AC powered equipment co-located.
- PDUs and cable management mounted on removable, configurable brackets on the rack’s rear.
- Capability to support up to six “ZerDUs” (power distribution units).
- Multiple bus bar placement options: shallow, deep, or dual bus bars on left and right sides for higher power or redundancy.
- Enables creation of multiple power domains within a single rack.
Additional Features
- Provisions for front and rear accessories such as security doors, EMI doors, heat exchangers, and cooling equipment.
- Option for rack-level EMI containment.
- Ergonomic and safety considerations for ease of maintenance, including compatibility with electric lift assist for heavy equipment.
Community and Availability
- The Google ORv3 implementation specification is available on the Open Compute Project (OCP) website.
- Google expresses enthusiasm for ongoing collaboration with the OCP community to innovate in rack and power design.
Questions & Clarifications
A question was raised about how the two bus bars (shallow and deep) would be connected; the presenter noted this is still a conceptual idea without a finalized or qualified solution.
Main Speaker
- Johnny Al, Product Design Engineer at Google
Category
Technology
