Comments on: Problems with Total Cost of Ownership http://www.matrixstore.net/2008/03/03/problems-with-total-cost-of-ownership/ Protect your digital archive forever Thu, 02 Sep 2010 10:57:21 +0100 hourly 1 http://wordpress.org/?v=3.0 By: MatrixStore » Blog Archive » A Living TCO Model http://www.matrixstore.net/2008/03/03/problems-with-total-cost-of-ownership/comment-page-1/#comment-727 MatrixStore » Blog Archive » A Living TCO Model Tue, 23 Feb 2010 08:21:24 +0000 http://www.matrixstore.net/2008/03/03/problems-with-total-cost-of-ownership/#comment-727 [...] http://www.matrixstore.net/2008/03/03/problems-with-total-cost-of-ownership/ [...] [...] http://www.matrixstore.net/2008/03/03/problems-with-total-cost-of-ownership/ [...]

]]> By: NPT http://www.matrixstore.net/2008/03/03/problems-with-total-cost-of-ownership/comment-page-1/#comment-582 NPT Tue, 22 Sep 2009 09:01:07 +0000 http://www.matrixstore.net/2008/03/03/problems-with-total-cost-of-ownership/#comment-582 The data in this post and the XLS are 18months old. The metrics will be updated to take into account new tech in the coming weeks.... The data in this post and the XLS are 18months old. The metrics will be updated to take into account new tech in the coming weeks….

]]> By: Tim Burton http://www.matrixstore.net/2008/03/03/problems-with-total-cost-of-ownership/comment-page-1/#comment-581 Tim Burton Tue, 22 Sep 2009 08:51:31 +0000 http://www.matrixstore.net/2008/03/03/problems-with-total-cost-of-ownership/#comment-581 WD 2TB Green idles at 3.7W. So you could say it uses 64% less power than the 7K1000.B when taking the storage capacity into account. WD 2TB Green idles at 3.7W. So you could say it uses 64% less power than the 7K1000.B when taking the storage capacity into account.

]]> By: Jon http://www.matrixstore.net/2008/03/03/problems-with-total-cost-of-ownership/comment-page-1/#comment-33 Jon Wed, 09 Jul 2008 11:11:24 +0000 http://www.matrixstore.net/2008/03/03/problems-with-total-cost-of-ownership/#comment-33 Interesting news today, July 9th, is that Hitachi have launched a 1TB disk, the Deskstar 7K1000.B, that gives "43% energy savings when disk is on standby". This is good news and definitely a step in the right direction, however, just how good is the news? The HDD apparently uses 5.2 watts as opposed to 8.4, thus, In an archive, if a disk is idle for 700 hours in a month, it'll use 3.64 kWh. If a kWh averages to $0.10 that's $.36 pcm, or $4.36 per year. That's in comparison to $5.88 per year for a 8.4 watt disk; a $1.52 saving isn't too exciting! (I'd argue from a purely monetary standpoint: Hitachi drives would need to be within $10 cost-wise in order to select them.) It's great to see every component in the computer system becoming more efficient, I love to see spinning disk solutions getting greener all the time and every little helps; but... headlines like "43% savings" can often lead one to jump to the wrong conclusion. Interesting news today, July 9th, is that Hitachi have launched a 1TB disk, the Deskstar 7K1000.B, that gives “43% energy savings when disk is on standby”. This is good news and definitely a step in the right direction, however, just how good is the news?

The HDD apparently uses 5.2 watts as opposed to 8.4, thus,

In an archive, if a disk is idle for 700 hours in a month, it’ll use 3.64 kWh. If a kWh averages to $0.10 that’s $.36 pcm, or $4.36 per year. That’s in comparison to $5.88 per year for a 8.4 watt disk; a $1.52 saving isn’t too exciting!

(I’d argue from a purely monetary standpoint: Hitachi drives would need to be within $10 cost-wise in order to select them.)

It’s great to see every component in the computer system becoming more efficient, I love to see spinning disk solutions getting greener all the time and every little helps; but… headlines like “43% savings” can often lead one to jump to the wrong conclusion.

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