APN-100-019
Sentry Smart CDU’s™ Power Cisco’s Unified Computing System
© Server Technology, Inc. Rev A 10/2009 version. Information in this document is subject to change without notice. Sentry and Server Technology are trademarks of Server Technology, Inc. Patent # 7,043,543. Patents Pending. Printed in US.
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The Cisco Unified Computing System is a next-generation data center platform that unites
computing, network, storage access, and virtualization into a cohesive system designed to
reduce total cost of ownership (TCO) and increase business agility. This application note will
illustrate how to power and provide redundancy for six Cisco UCS 5108 Series Blade Server
Chassis and two Cisco UCS 6120XP 20-Port Fabric Interconnects utilizing Server Technology’s
Smart CS-18VYY813A2 Cabinet Power Distribution Unit (CDU) with (12) C19 and (6) C13
outlets per CDU with a power input feed of 3-Phase 208 V 60 A power.
Server Technology’s Sentry Smart CDU Solution to Power a Cabinet with Six Cisco UCS 5108
Series Blade Server Chassis and Two Cisco UCS 6120XP 20-Port Fabric Interconnects
Enclosed are the loaded power draws for each device shown in the cabinet.
Total kW delivered for one 3-Phase 208 V 60 A in-feed source is 21.6 kW de-rated to 17.3 kW.
Power Requirements for Cisco Unied Computing System with Six 5108 Blade Server Chassis:
-Total Power Usage: 14.2 kW
-Input power feeds required: two 208 V, 3-Phase, 60 A, IEC 60309 plugs
-Number of Outlets: (12) C13 and (24) C19 per cabinet
-Other requirements: Intelligent monitoring, local current indicators to help in load balancing
If one of the input power feeds fails the other CDU must be capable of carrying the whole load. The CS-18VY provides
plenty of power should this occur.
Key Benets:
> Sentry Smart 3-Phase 60 A CDU’s reduce the number of CDU’s needed to deliver the power required by this cabinet
conguration. This in turn reduces the number of power drops required for each cabinet.
> Fewer power cords means lower infrastructure costs and improved airow in a raised oor data center environment
resulting in improved cooling in the cabinet.
> Sentry Smart CDU’s allow administrators to view the current load and environmental conditions remotely.
> SNMP traps and email alerts ensure notication if a problem has occurred along with logging of all actions
performed by user.
> Local LED’s Per Branch Circuit - Large, easy-to-read displays let you determine if the load is balanced and provides
visual indication that power is supplied to the CDU.
> Environmental measurements - Qty (2) temperature and humidity measurements are provided per pair of CDU’s.
> Local and remote notication if a branch circuit is lost.
> Master and Link unit conguration (CS/CL) allows two power in-feeds and all environmental information to be
monitored via single IP address per cabinet.
Cisco Devices qty Cisco Power Spec. Derang Expected Was Each C13 C19 Total Was
UCS 6120XP 2 550 W 65% 358 2 0 716
UCS 5108 6 5000 W 45% 2250 0 4 13500
APN-100-019
CS-18VYY813A2
CL-18VYY813A2
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Notes:
1. UCS 5108 Blade Server Chassis
drawing 2250W times 6 chassis.
2. UCS 6120XP drawing 358W times 2
units.
3. 60A 3-phase CDU’s with 6 branches
on 20A circuit breakers. Continuous
available power of 17.3kW.
(206 Seiten)
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