tag:blogger.com,1999:blog-3822757291061444396.post6394218117007976340..comments2024-02-27T03:14:00.412-06:00Comments on From the Canyon Edge: Slashdot (Power Capping) and What Ubuntu is DoingDustin Kirklandhttp://www.blogger.com/profile/12464590128908584782noreply@blogger.comBlogger8125tag:blogger.com,1999:blog-3822757291061444396.post-4299485418234457342009-09-26T00:28:01.753-05:002009-09-26T00:28:01.753-05:00Hi,
This article is great.i’ll put this article to...Hi,<br />This article is great.i’ll put this article to my bookmarking page.thx for post man i’m following you.<br /><br /><a href="http://http://www.zoombits.fr/ram//" rel="nofollow">ddr</a>Shawn Williamshttps://www.blogger.com/profile/15206346233530013399noreply@blogger.comtag:blogger.com,1999:blog-3822757291061444396.post-30460328598178772832009-07-28T05:34:26.837-05:002009-07-28T05:34:26.837-05:00ACPI S3 Suspend-to-RAM:
* http://en.wikipedia.org...ACPI S3 Suspend-to-RAM:<br /> * http://en.wikipedia.org/wiki/Advanced_Configuration_and_Power_Interface#Power_States<br /><br />Amazon S3 Storage:<br /> * http://en.wikipedia.org/wiki/Amazon_S3<br /><br />Both called S3, absolutely nothing to do with one another.<br /><br />:-DustinDustin Kirklandhttps://www.blogger.com/profile/12464590128908584782noreply@blogger.comtag:blogger.com,1999:blog-3822757291061444396.post-39144411343928750412009-07-27T21:54:31.937-05:002009-07-27T21:54:31.937-05:00I knew you were going to throw in the other S3 jus...I knew you were going to throw in the other S3 just to make sure everyone is nice and confused.<br /><br />I think it would be useful if you did a follow up after a month or so of home server powernap usage to see if you could quantify the power savings you experience. <br /><br />-jefJef Spaletahttps://www.blogger.com/profile/11439754449677675460noreply@blogger.comtag:blogger.com,1999:blog-3822757291061444396.post-57730395543107685622009-07-27T08:34:44.407-05:002009-07-27T08:34:44.407-05:00Jef-
So I don't have answers to all of your q...Jef-<br /><br />So I don't have answers to all of your questions.<br /><br />But the one I'm most capable of answering is about how useful PowerNap is without S3.<br /><br />And I think that answer is "still very useful". PowerNap doesn't really care what action it takes when it realizes the conditions are right for a "powernap".<br /><br />In fact, you can write your own script to do whatever you want and copy it or link it to /etc/powernap/action. This could send an email, or change you cpu-frequency governor, or powerdown the whole data center, or run a backup script, or whatever.<br /><br />And if this script doesn't exist, PowerNap will try to Suspend, then Hibernate, and then Poweroff. While I haven't found as much hardware supporting Suspend, all of the hardware I've tested does support Hibernate.<br /><br />Hibernate is fairly compelling in its own right. The power savings is even greater than Suspend, state is still maintained, but resuming takes more like 30-60 seconds (rather than 5-10 seconds). In some use cases, this delay is probably okay.<br /><br />As you said, I think the software may be slightly ahead of the server class hardware (though in sync with laptops and desktops). I think (hope) people will start asking their server vendors for S3 capable servers.<br /><br />As for UbuntuOne, according to:<br /> * https://wiki.ubuntu.com/UbuntuOne<br />the data is stored in Amazon EC2 on S3 storage. So yes, they are using S3, albeit a completely different type of S3 :-) The hardware they're using, I'm sure, is the same hardware available in the rest of the Amazon EC2 cloud.<br /><br />:-DustinDustin Kirklandhttps://www.blogger.com/profile/12464590128908584782noreply@blogger.comtag:blogger.com,1999:blog-3822757291061444396.post-78184663794737403082009-07-26T18:29:02.382-05:002009-07-26T18:29:02.382-05:00Low-powered servers are great stuff. I'm using...Low-powered servers are great stuff. I'm using a Linutop as a household file server - it's got an AMD Geode 400MHz, a flash disk, no fans, uses 12W and runs Ubuntu 8.04 (preinstalled). I wonder how it'd do with a later version. I may try a later version if I ever expand the 1GB flash disk ;-)David Gerardhttps://www.blogger.com/profile/13057086390864018760noreply@blogger.comtag:blogger.com,1999:blog-3822757291061444396.post-67495927799520612502009-07-26T17:08:35.023-05:002009-07-26T17:08:35.023-05:00While the discussion over whose bare metal hypervi...While the discussion over whose bare metal hypervisor production solution people are going to spend money on is a noteworthy topic..I'll give you a free pass on the Ubuntu Server salespitch to Amazon(this time) and save that discussion for a more expansive forum...and I'll just focus on powernap as a technology.<br /><br />There's a bottomline benefit here in powernap for people running iron for utility computing, that's clear. And it makes sense for it to be integrated with Eucalyptus. I would imagine that VMWare is going to implement the same functionality as well once customers see the cost benefits of it. But.. if you can't find servers that can do S3, then certainly the Amazon's of the world or anyone running a private grid is also going to have trouble. Without S3 support on server hardware are the potential benefits to running powernap functionality as part of a cloud management solution greatly impacted? Is the software capability leading ahead of the hardware capability here? What's the tech refresh rate for utility iron? Can we expect servers purchased to day to be rotated out in 2 years? Four years? Are we talking about a 4 year timeline to see S3 capable servers become the dominant server hardware?<br /><br />Forget the economies of Amazon where people are already being charged directly for services consumed. That's the easier questions. The harder question is how to expose the true energy costs to users for cost-less services, how much power do Google server farms waste idling? How much energy is used( or carbon produced) for each google search I do...each tweet executed. Web services is primarily free lunch world, where energy costs are not passed on to the userbase...destroying the most effective incentive to see things go greener. Somehow we are going to have to find a way to put public pressure on service companies who are buying the iron. Do you know if UbuntuOne using S3 capable iron?<br /><br /> <br />-jefJef Spaletahttps://www.blogger.com/profile/11439754449677675460noreply@blogger.comtag:blogger.com,1999:blog-3822757291061444396.post-77855807079569038242009-07-25T23:46:00.583-05:002009-07-25T23:46:00.583-05:00Hi Jef, thanks for the comments.
I hope server ve...Hi Jef, thanks for the comments.<br /><br />I hope server vendors really start taking energy efficiency serious. For one thing, I'm having trouble tracking down rackable servers that support S3 (suspend-to-ram). For x86 hardware, I think that's really sad, in my opinion. If one of the vendors *does* start producing such systems, I think we should vote with our wallets, and with our blogs, and support such a move.<br /><br />As for hosts that pro-rate based on power consumption, I don't know of any. Heck, I think you might be on to an interesting business model ;-) My hosting provider (a2hosting.com) sells carbon offsets. That's the "greenest" thing I know about (and not at all what you're asking).<br /><br />I don't know much about Amazon's EC2 hardware situation. I have heard that they have a lot of IBM and Dell hardware, up to 8-cpu systems, mostly running CentOS (for Xen).<br /><br />It is my *hope* that Amazon will consider Ubuntu + KVM + PowerNap, perhaps some time in the future. But if not Amazon, then providers like Amazon. Wikipedia, for instance, runs Ubuntu Servers. I would think a non-profit such as the Wikimedia Foundation would be interested in saving power. Or perhaps people who are already interested in such things. Maybe we should reach out to Al Gore and the Obama Administration ;-)<br /><br />As for ARM and LPIA servers... I consider these devices essentially as powerful as virtual machines. Sure, file/print/web would fit nicely there. But more generically, I'd say most things you're willing to do in a VM, you could probably accomplish on an ARM or LPIA server.<br /><br />Given that the architecture itself is different, I think interpreted applications (Shell, Python, Perl, PHP, Ruby, etc) or maybe even Java (?) will probably migrate to these systems more quickly than traditional (and more performant) C applications.<br /><br />As for Canonical's partnerships, I couldn't say much more than what you'd find on our list of officially recognized partners ;-)<br /> * http://www.ubuntu.com/partners<br /><br />Cheers,<br />:-Dustin<br /><br />:-DustinDustin Kirklandhttps://www.blogger.com/profile/12464590128908584782noreply@blogger.comtag:blogger.com,1999:blog-3822757291061444396.post-45074444215878032052009-07-25T13:35:32.621-05:002009-07-25T13:35:32.621-05:00Dustin,
this is good stuff. A couple of comments...Dustin,<br /> this is good stuff. A couple of comments.<br /><br />How do we make going green with servers a more prominant feature when choosing server hardware...especially offsite server hardware that I am contracting for? Are there hosting providers which pro-rate your service terms based on your server's power consumption? Does Amazon's EC2 expose power consumption? As things get more cloudly and people and companies rely more and more on contracting for infrastructure...are the right incentives exposed so that customers of those services choose the greener solution? <br /><br />The other comment...ARM and LPIA as servers. I think that's a very specific workload you have in mind there..simple file/print/web server activity. I think NAS appliances are already converging into that sort of thing as a consumer option. I think NAS appliances ive seen are running linux on ARM or MIPS already. Is Canonical looking to partner with appliance vendors to provide an OS aimed at NAS cubes?<br /><br />-jefJef Spaletahttps://www.blogger.com/profile/11439754449677675460noreply@blogger.com