Cisco Blogs

Cisco Blog > Data Center

A More Granular Approach To DC Cooling

One of the goals of Data Center 3.0 is to shift the approach for building data center infrastructure and deploy it in a more targeted and granular fashion to make sure budget spend is used more efficiently. One of the more interesting places to do this is with regards to data center cooling. Taking a more granular approach can certainly help you eke more life out of your data center if you find yourself in a situation where it seems you are running out of cooling capacity. In this podcast, Doug Alger discusses some of the things Cisco IT is doing and considering to map cooling strategies to our different tiers of service. Something else we along these lines is customer who provision cooling based on equipment power consumption indicated by the max rating “on the plate.” This often leads to significantly over-provisioned cooling and sets up a cascade of other problems: 1) wasted budget, 2) perception that the DC is closer to cooling capacity than it actually is, and 3) because the cooling unit are over-provisioned and not running at the designed load, their cooling efficiency suffers. To help customers plan more effectively, we have a couple of free tools on (registration, however, is required) that help you understand actual power consumption.The Data Center Assurance Program (DCAP) Best Practices Tool gives you the tested power draw of the best practices designs discussed in the tool and the design guides. Below is an excerpt:imageTo get more detail on your specific configs, you can use the Cisco Power Calculator to plug in your specific configuration and get more detailed info (below is a section of the full report).imageIn both these cases, the typical power draw is significantly less than the “plate rating” indicated by the installed power supplies. As a reminder, while cooling strategies can be designed around these typical usage numbers, electrical service still needs to be provisioned based on the plate rating.

WAN Optimization at Interop: More of the Same, or Totally Different?

Sometimes it’s more fun sitting on the panel than it is watching it from the audience. It certainly provided a unique opportunity to watch a group of experienced IT vendor technologists and marketeers all claim to be unique, and THE SOLUTION for our 100+ audience members that filled the mid-sized room. Are different WAN optimization vendors’ solution offerings really different from one another? Can they uniquely solve customers’ growing IT and cost challenges in this still challenged economic environment and budget year(s)? Or was this session at Interop just “more of the same thing?”

Read More »

Cisco Unified Computing System at Cisco

John Manville, VP for IT for the Network and Data Center Services organization, will be on IPTV tomorrow discussing the production implementation of the Cisco Unified Computing System in our data centers. The event is tomorrow (May 27) at 11am PT. Click here for the event.

Read More »

PUE Audits at Cisco

As I have often note in my customer briefings, getting a handle on power and cooling issues in the data center is dependent on the proverbial three-legged stool: energy-efficient facilities, energy-efficient products, and getting educated on designing/implementing/operating energy efficient data centers. Of the three, I ultimately think the last one has the greatest impact. As operations teams more sophisticated in their energy efficiency strategies and get access to better tools to measure and manage energy consumption, companies will start get get ahead of their power and cooling challenges. It is for that reason that organizations such as The Green Grid (of which Cisco is a member) were created. If you have not checked out their website, I highly encourage you to do so–there are a wealth of resources there. Anyway, one of the metrics the Green Grid advocates is Power Usage Effectiveness (PUE) and its reciprocal, Data Center Efficiency (DCE) as tools to help customers estimate the energy efficiency of their data centers. I highly encourage you to listen to Doug Alger discuss our experiences in conducting a PUE audit at one of our data centers and some of the caveats he notes on the results of the audit.Anyone else running PUE audits or considering them? Would love to hear any thoughts or feedback you might have.

Intel CIO supports Unified Fabric and FCoE

Intel is a critical Cisco partner, but also a large and innovative manufacturing customer. Diane Bryant, CIO Intel, was on Cisco booth at EMC World, in Orlando Florida, to witness the large number of visitors interested by our Unified Computing System , and our unified fabric strategy . It was a perfect opportunity to talk about the way she is transforming today the Intel data centers. After a first wave of virtualization, her IT team is diligently implementing the next wave : the consolidation of the fabric . Based on very encouraging results that she shared with me, Diane Bryant is obviously determined to move forward as fast as possible…