博客

Load Shedding – How to Cap Power Consumption

Posted on October 30, 2017 by Gento  |  Comments (7)

Would you like to put a hard power capacity limit on a rack to ensure failover success or put a limit on a set of racks?

Load shedding can be the answer to preventing rack circuit-failover failure.

When dealing with PDUs there are already limits to the load capacity of a single device. It comes in the form of floor PDU circuit breakers. However, the capacity limit of a rack can exceed the limit of a single rack circuit. This is due to the fact that you typically load balance between two or more circuits. In other words, each circuit could be under capacity but when you add the loads together (loss of one circuit/failover) you exceed the capacity of one of those circuits. Under these circumstances, you could lose the whole rack because a failover would not succeed.

One way to make sure you don't exceed the capacity of a single rack or any set of racks is to utilize these key features of the Raritan PX line of PDUs:

1.  Load Shedding — You pre-configure a group of outlets on a PDU that you want to be turned off when a particular event arises.  The load shed outlet group may just be unused outlets and the load shed just keeps these outlets from being used.

2.  LUA Scripting — Create a LUA script with JSON-RPC that can be run on one Raritan PX PDU that collects inlet current readings from other PDUs, adds that to its own inlet current reading. Then, based on a Boolean operation, executes that pre-configured load shedding on the local PDU as well as notifying the other PDUs to execute load shedding.

3.  JSON-RPC API — Instead of a LUA script on a PDU, create a script (python/perl/java) that utilizes the PX API to perform the above (step 2) but run this on an element management system or CMDB or anything capable of running scripts. Just load our PX Software Developers Kit on the system where this will run.

If your racks are not configured so that a single circuit can handle a failover, it could be costly when you do have circuit failure.  Because of these 3 exclusive features of Raritan's PX line of PDUs, you are able to keep loads under a set capacity. And not just report that something bad could happen, but do something about it, before catastrophe strikes. This is just one of many unique features of the PX series of intelligent rack PDU. To learn more about other features that make your IT infrastructure more efficient click here.

Other Blog Posts

Increase Operational Efficiencies and Security With Remote Power Management and Server Access
Posted on August 21, 2018
Disruptive Technologies Changing Data Centers: Part 3
Posted on August 14, 2018
Disruptive Technologies Changing Data Centers: Part 2
Posted on August 6, 2018
The True Cost and Causes of a Data Center Breach: Part 1
Posted on July 25, 2018
Physical Security and Audit-Readiness at the Rack
Posted on July 23, 2018

View all Blog Posts

訂閱

近期活動

Cisco Live 2018
March 6-9, 2018  •  Melbourne, Australia
DataCloud Asia 2018
March 22, 2018  •  Singapore
DCD Indonesia
Apr 5, 2018  •  Jakarta
Data Centre World Hong Kong
May 16 – 17, 2018  •  Hong Kong
CDCC China
May, June, July, Nov 2018  •  Wuhan, Hangzhou, Chengdu, Beijing

View all Events

Raritan最新新聞

Raritan智慧型機架管理產品系列又添新成員——新式機櫃門禁電子鎖系統
Posted on July 29, 2018
Legrand Makes 451 Research’s List of Largest Data Center Technology Suppliers
Posted on May 4, 2018
Finding Weak Links in Your Security Policy and How to Safeguard Data Centers Will Be Addressed by Raritan Speaker at AFCOM Conference
Posted on March 8, 2018
Raritan Introduces Secure Switch for KVM Access to Government and Military Computers
Posted on March 6, 2018
Ashley Fox of Raritan Inc. Recognized as 2018 CRN Channel Chief
Posted on February 27, 2018

View all news