Comments on: The Hot Aisle Data Center Maturity Model http://www.thehotaisle.com/2009/04/08/the-hot-aisle-data-center-maturity-model/ Fresh Thinking on IT Operations Mon, 06 Feb 2012 16:02:00 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: The Hot Aisle Data Center Maturity Model « Enterprise Strategy Group http://www.thehotaisle.com/2009/04/08/the-hot-aisle-data-center-maturity-model/comment-page-1/#comment-7232 The Hot Aisle Data Center Maturity Model « Enterprise Strategy Group Tue, 12 Jan 2010 21:28:02 +0000 http://www.thehotaisle.com/?p=1287#comment-7232 [...] Read the entire blog entry here >> All views and opinions expressed in ESG blog posts are intended to be those of the post's author and do not necessarily reflect the views of Enterprise Strategy Group, Inc., or its clients. ESG bloggers do not and will not engage in any form of paid-for blogging. Click to see our complete Disclosure Policy. For important information about using this content, please review our Terms & Conditions Tags: data center, green IT, it leadership [...] [...] Read the entire blog entry here >> All views and opinions expressed in ESG blog posts are intended to be those of the post's author and do not necessarily reflect the views of Enterprise Strategy Group, Inc., or its clients. ESG bloggers do not and will not engage in any form of paid-for blogging. Click to see our complete Disclosure Policy. For important information about using this content, please review our Terms & Conditions Tags: data center, green IT, it leadership [...]

]]> By: vernon http://www.thehotaisle.com/2009/04/08/the-hot-aisle-data-center-maturity-model/comment-page-1/#comment-1516 vernon Tue, 05 May 2009 23:04:41 +0000 http://www.thehotaisle.com/?p=1287#comment-1516 I would love to help , but the slide quality is so poor (blurry) that I cannot read it I would love to help , but the slide quality is so poor (blurry) that I cannot read it

]]> By: davidirwc http://www.thehotaisle.com/2009/04/08/the-hot-aisle-data-center-maturity-model/comment-page-1/#comment-1484 davidirwc Fri, 10 Apr 2009 16:13:27 +0000 http://www.thehotaisle.com/?p=1287#comment-1484 1) Could you clarify the free cooling on Level 3 and the fresh air on Level 4<br>2) When you do an overall 1st cost and 10 year OPEX analysis with DC changes , the overall picture does not change at all in the picture, the reduction obtain from DC are very low compared to what else you have to deal with to get there. The AC vs DC is not that big, however if Level 4 would state server power supply efficiency/loading, I think that is more significant than the placing DC on the level 4 bullets 1) Could you clarify the free cooling on Level 3 and the fresh air on Level 4
2) When you do an overall 1st cost and 10 year OPEX analysis with DC changes , the overall picture does not change at all in the picture, the reduction obtain from DC are very low compared to what else you have to deal with to get there. The AC vs DC is not that big, however if Level 4 would state server power supply efficiency/loading, I think that is more significant than the placing DC on the level 4 bullets

]]> By: » Diverse energiartikler » Sunech.com http://www.thehotaisle.com/2009/04/08/the-hot-aisle-data-center-maturity-model/comment-page-1/#comment-1483 » Diverse energiartikler » Sunech.com Thu, 09 Apr 2009 20:26:24 +0000 http://www.thehotaisle.com/?p=1287#comment-1483 [...] [...] [...] [...]

]]> By: thehotaisle http://www.thehotaisle.com/2009/04/08/the-hot-aisle-data-center-maturity-model/comment-page-1/#comment-1480 thehotaisle Wed, 08 Apr 2009 23:55:15 +0000 http://www.thehotaisle.com/?p=1287#comment-1480 Nik,<br><br>I think these are good comments and worthy of further discussion. I will drop you an email (if I may) and schedule a call to try and position this properly.<br><br>You might know that I am a bit of a DC bigot having worked in two telcos. DC just seems to be right (fewer conversions) and my experience is if it feels right it probably is and you are kidding yourself if you think otherwise. Validus have a really good DC proposition (written about in a prior article) as have BT themselves as part of the 21st Century Data Center.<br><br>Thanks<br><br>Steve Nik,

I think these are good comments and worthy of further discussion. I will drop you an email (if I may) and schedule a call to try and position this properly.

You might know that I am a bit of a DC bigot having worked in two telcos. DC just seems to be right (fewer conversions) and my experience is if it feels right it probably is and you are kidding yourself if you think otherwise. Validus have a really good DC proposition (written about in a prior article) as have BT themselves as part of the 21st Century Data Center.

Thanks

Steve

]]> By: Nik Simpson http://www.thehotaisle.com/2009/04/08/the-hot-aisle-data-center-maturity-model/comment-page-1/#comment-1479 Nik Simpson Wed, 08 Apr 2009 18:06:46 +0000 http://www.thehotaisle.com/?p=1287#comment-1479 I think the interesting question is where/whether moving to DC makes sense. For example, I could easily see moving to 415V AC distribution in level 2 or level 3, which raises two questions:<br><br>1. Is the efficiency gains from using DC going to be worth the trouble if you have a well designed/implemented 415V AC distribution.<br><br>2. Does it makes sense to live with inefficient AC distribution until you get to level 4 if your long term plan is go DC.<br><br>I think it's also worth considering some of the issues such as UPS efficiency, type, and location somewhere in this discusion I think the interesting question is where/whether moving to DC makes sense. For example, I could easily see moving to 415V AC distribution in level 2 or level 3, which raises two questions:

1. Is the efficiency gains from using DC going to be worth the trouble if you have a well designed/implemented 415V AC distribution.

2. Does it makes sense to live with inefficient AC distribution until you get to level 4 if your long term plan is go DC.

I think it's also worth considering some of the issues such as UPS efficiency, type, and location somewhere in this discusion

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