Comments on: Distributed Power Management: Improved Efficiency or Playing with Fire? http://www.chriswolf.com/?p=203 Not so random musings of a Gartner analyst Fri, 06 Aug 2010 04:11:42 -0500 http://wordpress.org/?v=2.8.6 hourly 1 By: Varrow Blogs » Saving Power with vSphere http://www.chriswolf.com/?p=203&cpage=1#comment-46850 Varrow Blogs » Saving Power with vSphere Sun, 28 Jun 2009 14:43:29 +0000 http://www.chriswolf.com/?p=203#comment-46850 [...] Chris Wolf [...] [...] Chris Wolf [...]

]]> By: Saving Power with vSphere « Jason Nash’s Blog http://www.chriswolf.com/?p=203&cpage=1#comment-46661 Saving Power with vSphere « Jason Nash’s Blog Mon, 22 Jun 2009 03:17:39 +0000 http://www.chriswolf.com/?p=203#comment-46661 [...] Chris Wolf [...] [...] Chris Wolf [...]

]]> By: VMware Launches the V Series Mainframe « Chris Wolf’s Virtualization Tips and Ramblings http://www.chriswolf.com/?p=203&cpage=1#comment-44964 VMware Launches the V Series Mainframe « Chris Wolf’s Virtualization Tips and Ramblings Thu, 23 Apr 2009 04:18:58 +0000 http://www.chriswolf.com/?p=203#comment-44964 [...] had blogged on DPM back in November, and while the post incited some strong vendor reaction, it served its [...] [...] had blogged on DPM back in November, and while the post incited some strong vendor reaction, it served its [...]

]]> By: Chris http://www.chriswolf.com/?p=203&cpage=1#comment-36343 Chris Tue, 09 Dec 2008 01:59:06 +0000 http://www.chriswolf.com/?p=203#comment-36343 Good catch, Craig, and thanks for pointing that out. We talked about the standby vs. cold boot impact on server resources (power supply, drives, memory, etc.) internally and while you're right about the difference, the impact on server resources between coming out of standby and a cold boot is effectively the same. Drue Reeves, a guy I highly respect, was deeply involved in these issues at Dell, HP, and Compaq. My stance has never been that DPM is a bad thing. I don't think that anyone would argue against it being in our not too distant future. I, along with my colleagues at Burton Group, are asking the IHVs to step up and fully support some form of active power management. The good news is that the attention this blog post has generated over the last few weeks is having an impact. I've heard positive updates (so far under NDA) for more than one virtualization vendor as well as from a couple of hardware vendors. Hardware vendors that I've recently spoken with feel that active power management (e.g. running system resources at a reduced frequency) instead of powering them down (or placing them in standby mode) may become the vendor-recommended solution. Of course, time will tell soon enough. In the mean time, our clients would like some reassurance from the hardware vendors that deploying any time of dynamic power management on a large scale would not void their service contracts or associated warranties. Some have noted that tests in the field have yielded positive results. Still, it's not too much to ask for the server hardware vendors to simply give their clients what they're looking for - a simple statement saying they will support VMware DPM, and will fully honor service contracts and warranties in environments that use DPM. Good catch, Craig, and thanks for pointing that out. We talked about the standby vs. cold boot impact on server resources (power supply, drives, memory, etc.) internally and while you’re right about the difference, the impact on server resources between coming out of standby and a cold boot is effectively the same. Drue Reeves, a guy I highly respect, was deeply involved in these issues at Dell, HP, and Compaq. My stance has never been that DPM is a bad thing. I don’t think that anyone would argue against it being in our not too distant future. I, along with my colleagues at Burton Group, are asking the IHVs to step up and fully support some form of active power management. The good news is that the attention this blog post has generated over the last few weeks is having an impact. I’ve heard positive updates (so far under NDA) for more than one virtualization vendor as well as from a couple of hardware vendors. Hardware vendors that I’ve recently spoken with feel that active power management (e.g. running system resources at a reduced frequency) instead of powering them down (or placing them in standby mode) may become the vendor-recommended solution. Of course, time will tell soon enough. In the mean time, our clients would like some reassurance from the hardware vendors that deploying any time of dynamic power management on a large scale would not void their service contracts or associated warranties. Some have noted that tests in the field have yielded positive results. Still, it’s not too much to ask for the server hardware vendors to simply give their clients what they’re looking for – a simple statement saying they will support VMware DPM, and will fully honor service contracts and warranties in environments that use DPM.

]]> By: Craig http://www.chriswolf.com/?p=203&cpage=1#comment-36283 Craig Mon, 08 Dec 2008 20:17:50 +0000 http://www.chriswolf.com/?p=203#comment-36283 Sorry but I had to nitpick. SNIP I’m not convinced that fully shutting down physical hosts is the solution. /SNIP DPM tosses a host into standby not fully shutting them down. It's not Cold-Booting but more like a warm reload. Just an FYI. Sorry but I had to nitpick.

SNIP
I’m not convinced that fully shutting down physical hosts is the solution.
/SNIP

DPM tosses a host into standby not fully shutting them down. It’s not Cold-Booting but more like a warm reload.

Just an FYI.

]]> By: Professional VMware » Blog Archive » More on VMware DPM and MTBF http://www.chriswolf.com/?p=203&cpage=1#comment-35862 Professional VMware » Blog Archive » More on VMware DPM and MTBF Fri, 05 Dec 2008 02:56:08 +0000 http://www.chriswolf.com/?p=203#comment-35862 [...] Chris Wolf - http://www.chriswolf.com/?p=203 [...] [...] Chris Wolf – http://www.chriswolf.com/?p=203 [...]

]]> By: RTFM Education » Blog Archive » VMware Distributed Power Management, my take on it… http://www.chriswolf.com/?p=203&cpage=1#comment-35822 RTFM Education » Blog Archive » VMware Distributed Power Management, my take on it… Thu, 04 Dec 2008 21:09:06 +0000 http://www.chriswolf.com/?p=203#comment-35822 [...] http://www.chriswolf.com/?p=203 [...] [...] http://www.chriswolf.com/?p=203 [...]

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