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	<title>Comments on: Can Maintenance Make Data Centers Less Reliable?</title>
	<atom:link href="http://www.epanorama.net/blog/2012/07/07/can-maintenance-make-data-centers-less-reliable/feed/" rel="self" type="application/rss+xml" />
	<link>https://www.epanorama.net/blog/2012/07/07/can-maintenance-make-data-centers-less-reliable/</link>
	<description>All about electronics and circuit design</description>
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		<title>By: Tomi Engdahl</title>
		<link>https://www.epanorama.net/blog/2012/07/07/can-maintenance-make-data-centers-less-reliable/comment-page-1/#comment-510261</link>
		<dc:creator><![CDATA[Tomi Engdahl]]></dc:creator>
		<pubDate>Fri, 30 May 2014 12:47:49 +0000</pubDate>
		<guid isPermaLink="false">http://www.epanorama.net/blog/?p=6831#comment-510261</guid>
		<description><![CDATA[Fat-fingered admin downs entire Joyent data center
Cloud operator now home to most mortified sysadmin in the USA
http://www.theregister.co.uk/2014/05/28/joyent_cloud_down/

loud operator Joyent went through a major failure on Tuesday when a fat-fingered admin brought down an entire data center&#039;s compute assets.

The cloud provider began reporting &quot;transient availability issues&quot; for its US-East-1 data center at around six-thirty in the evening, East Coast time.

&quot;Due to an operator error, all compute nodes in us-east-1 were simultaneously rebooted,&quot; 

The problems were mostly fixed an hour or so later.

The cause of the outage was that an admin was using a tool to remotely update the software on some new servers in Joyent&#039;s data center and, when trying to reboot them, accidentally rebooted all of the servers in the facility.

&quot;The command to reboot the select set of new systems that needed to be updated was mis-typed, and instead specified all servers in the datacenter,&quot; Joyent wrote.]]></description>
		<content:encoded><![CDATA[<p>Fat-fingered admin downs entire Joyent data center<br />
Cloud operator now home to most mortified sysadmin in the USA<br />
<a href="http://www.theregister.co.uk/2014/05/28/joyent_cloud_down/" rel="nofollow">http://www.theregister.co.uk/2014/05/28/joyent_cloud_down/</a></p>
<p>loud operator Joyent went through a major failure on Tuesday when a fat-fingered admin brought down an entire data center&#8217;s compute assets.</p>
<p>The cloud provider began reporting &#8220;transient availability issues&#8221; for its US-East-1 data center at around six-thirty in the evening, East Coast time.</p>
<p>&#8220;Due to an operator error, all compute nodes in us-east-1 were simultaneously rebooted,&#8221; </p>
<p>The problems were mostly fixed an hour or so later.</p>
<p>The cause of the outage was that an admin was using a tool to remotely update the software on some new servers in Joyent&#8217;s data center and, when trying to reboot them, accidentally rebooted all of the servers in the facility.</p>
<p>&#8220;The command to reboot the select set of new systems that needed to be updated was mis-typed, and instead specified all servers in the datacenter,&#8221; Joyent wrote.</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Tomi Engdahl</title>
		<link>https://www.epanorama.net/blog/2012/07/07/can-maintenance-make-data-centers-less-reliable/comment-page-1/#comment-23985</link>
		<dc:creator><![CDATA[Tomi Engdahl]]></dc:creator>
		<pubDate>Wed, 18 Dec 2013 07:37:56 +0000</pubDate>
		<guid isPermaLink="false">http://www.epanorama.net/blog/?p=6831#comment-23985</guid>
		<description><![CDATA[Study: Downtime for U.S. data centers costs $7900 per minute
http://www.cablinginstall.com/articles/2013/12/ponemon-downtime-study.html

A study recently conducted by Ponemon Institute and sponsored by Emerson Network Power (ENP) shows that on average, an unplanned data center outage costs more than $7,900 per minute. That number is a 41-percent increase over the $5,600-per-minute quantification put on downtime from Ponemon’s similar 2010 study. “Data center downtime proves to remain a costly line item for organizations,” ENP said when announcing the study’s results.]]></description>
		<content:encoded><![CDATA[<p>Study: Downtime for U.S. data centers costs $7900 per minute<br />
<a href="http://www.cablinginstall.com/articles/2013/12/ponemon-downtime-study.html" rel="nofollow">http://www.cablinginstall.com/articles/2013/12/ponemon-downtime-study.html</a></p>
<p>A study recently conducted by Ponemon Institute and sponsored by Emerson Network Power (ENP) shows that on average, an unplanned data center outage costs more than $7,900 per minute. That number is a 41-percent increase over the $5,600-per-minute quantification put on downtime from Ponemon’s similar 2010 study. “Data center downtime proves to remain a costly line item for organizations,” ENP said when announcing the study’s results.</p>
]]></content:encoded>
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	<item>
		<title>By: alansfishingtackle.co.uk</title>
		<link>https://www.epanorama.net/blog/2012/07/07/can-maintenance-make-data-centers-less-reliable/comment-page-1/#comment-23984</link>
		<dc:creator><![CDATA[alansfishingtackle.co.uk]]></dc:creator>
		<pubDate>Fri, 07 Jun 2013 15:31:39 +0000</pubDate>
		<guid isPermaLink="false">http://www.epanorama.net/blog/?p=6831#comment-23984</guid>
		<description><![CDATA[Hello, just wanted to tell you, I liked this article. It was inspiring. Keep on posting!]]></description>
		<content:encoded><![CDATA[<p>Hello, just wanted to tell you, I liked this article. It was inspiring. Keep on posting!</p>
]]></content:encoded>
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		<title>By: Tomi Engdahl</title>
		<link>https://www.epanorama.net/blog/2012/07/07/can-maintenance-make-data-centers-less-reliable/comment-page-1/#comment-23983</link>
		<dc:creator><![CDATA[Tomi Engdahl]]></dc:creator>
		<pubDate>Fri, 01 Mar 2013 09:22:19 +0000</pubDate>
		<guid isPermaLink="false">http://www.epanorama.net/blog/?p=6831#comment-23983</guid>
		<description><![CDATA[ARM servers: From li&#039;l Acorns big data center disruptions grow
Shuttleworth says &#039;vast tracts&#039; of legacy apps &#039;just don&#039;t matter&#039;
http://www.theregister.co.uk/2013/03/01/arm_server_mwc_panel/

The ARM collective doesn&#039;t just want to get into the data center. It wants to utterly transform it and help companies &quot;manage down the legacy&quot; of existing systems

How a data center is like a disk drive

Masters also said that the shift towards hyperscale computing is forcing the change in the data center. Big apps require massively scalable, cut-down systems where the redundancy is in the software and in the quantity of hardware, not in any particular server that is equipped with all kinds of redundancies, because this cuts overall acquisition and operation costs.

The companies that Red Hat is talking to in the hyperscale data center racket are looking at &quot;fail in place&quot; scenarios in which they treat a data center like a disk drive, and while they admire the compact and tuned nature of SoC server nodes with integrated switch fabrics, they are not even thinking about things at the rack level anymore, but at the data center level.

With a fail-in-place data center, you load it up with a few tens of thousands of nodes that have networking on each server node, pipe in external networking and power, and you never do maintenance on it. If a server fails, you mark it as bad, like a bad block on a disk drive, and you just leave it in there and let the network heal around it.]]></description>
		<content:encoded><![CDATA[<p>ARM servers: From li&#8217;l Acorns big data center disruptions grow<br />
Shuttleworth says &#8216;vast tracts&#8217; of legacy apps &#8216;just don&#8217;t matter&#8217;<br />
<a href="http://www.theregister.co.uk/2013/03/01/arm_server_mwc_panel/" rel="nofollow">http://www.theregister.co.uk/2013/03/01/arm_server_mwc_panel/</a></p>
<p>The ARM collective doesn&#8217;t just want to get into the data center. It wants to utterly transform it and help companies &#8220;manage down the legacy&#8221; of existing systems</p>
<p>How a data center is like a disk drive</p>
<p>Masters also said that the shift towards hyperscale computing is forcing the change in the data center. Big apps require massively scalable, cut-down systems where the redundancy is in the software and in the quantity of hardware, not in any particular server that is equipped with all kinds of redundancies, because this cuts overall acquisition and operation costs.</p>
<p>The companies that Red Hat is talking to in the hyperscale data center racket are looking at &#8220;fail in place&#8221; scenarios in which they treat a data center like a disk drive, and while they admire the compact and tuned nature of SoC server nodes with integrated switch fabrics, they are not even thinking about things at the rack level anymore, but at the data center level.</p>
<p>With a fail-in-place data center, you load it up with a few tens of thousands of nodes that have networking on each server node, pipe in external networking and power, and you never do maintenance on it. If a server fails, you mark it as bad, like a bad block on a disk drive, and you just leave it in there and let the network heal around it.</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Tomi Engdahl</title>
		<link>https://www.epanorama.net/blog/2012/07/07/can-maintenance-make-data-centers-less-reliable/comment-page-1/#comment-23982</link>
		<dc:creator><![CDATA[Tomi Engdahl]]></dc:creator>
		<pubDate>Wed, 02 Jan 2013 08:57:30 +0000</pubDate>
		<guid isPermaLink="false">http://www.epanorama.net/blog/?p=6831#comment-23982</guid>
		<description><![CDATA[It takes all sorts to build a cloud
The magic of teamwork
http://www.theregister.co.uk/2013/01/02/private_cloud/

The warning came through loud and clear in our recent Regcast, Future-Proofing the Data Centre: if you want to build a private cloud, your teams must work together.

That, HP’s David Chalmers told us, means creating a service delivery team: some of you from the server team need to work with a small group from the storage team, and a group from the storage team is going to be hanging out with the networks team, and so on.

For next-generation data centre projects, you need dedicated cross-functional teams with complementary specialisations, aiming for a single service-delivery goal.

The benefits to users of coherent project management may be obvious, but as anyone who has tried to do it knows, it is not easy.

When we build cross-functional teams, establishing a common goal is the easy bit. What follows will determine whether that goal is realised effectively.]]></description>
		<content:encoded><![CDATA[<p>It takes all sorts to build a cloud<br />
The magic of teamwork<br />
<a href="http://www.theregister.co.uk/2013/01/02/private_cloud/" rel="nofollow">http://www.theregister.co.uk/2013/01/02/private_cloud/</a></p>
<p>The warning came through loud and clear in our recent Regcast, Future-Proofing the Data Centre: if you want to build a private cloud, your teams must work together.</p>
<p>That, HP’s David Chalmers told us, means creating a service delivery team: some of you from the server team need to work with a small group from the storage team, and a group from the storage team is going to be hanging out with the networks team, and so on.</p>
<p>For next-generation data centre projects, you need dedicated cross-functional teams with complementary specialisations, aiming for a single service-delivery goal.</p>
<p>The benefits to users of coherent project management may be obvious, but as anyone who has tried to do it knows, it is not easy.</p>
<p>When we build cross-functional teams, establishing a common goal is the easy bit. What follows will determine whether that goal is realised effectively.</p>
]]></content:encoded>
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	<item>
		<title>By: kasyno</title>
		<link>https://www.epanorama.net/blog/2012/07/07/can-maintenance-make-data-centers-less-reliable/comment-page-1/#comment-23981</link>
		<dc:creator><![CDATA[kasyno]]></dc:creator>
		<pubDate>Tue, 30 Oct 2012 11:19:18 +0000</pubDate>
		<guid isPermaLink="false">http://www.epanorama.net/blog/?p=6831#comment-23981</guid>
		<description><![CDATA[As a consequence of you My partner and i repay my good friend in instances associated with lager. We started out along with your pet that will not find weblog in which ruin us. He or she dispatched us often the handle of your respective website. Very well, My spouse and i lost...]]></description>
		<content:encoded><![CDATA[<p>As a consequence of you My partner and i repay my good friend in instances associated with lager. We started out along with your pet that will not find weblog in which ruin us. He or she dispatched us often the handle of your respective website. Very well, My spouse and i lost&#8230;</p>
]]></content:encoded>
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	<item>
		<title>By: Tomi Engdahl</title>
		<link>https://www.epanorama.net/blog/2012/07/07/can-maintenance-make-data-centers-less-reliable/comment-page-1/#comment-23980</link>
		<dc:creator><![CDATA[Tomi Engdahl]]></dc:creator>
		<pubDate>Thu, 25 Oct 2012 08:48:21 +0000</pubDate>
		<guid isPermaLink="false">http://www.epanorama.net/blog/?p=6831#comment-23980</guid>
		<description><![CDATA[If the servers are too much compared to the performance of a real need, it will cause unnecessary energy consumption, maintenance costs and increase the lead to excessive investment in equipment. If, however, the service performance is inadequate, at worst, it can slow down or crash critical network services and result in losses.

The server capacity testing is currently often lacking, since each service will have to draw up its own testing. The test preparation is hard work and requires a lot of expertise. Therefore, the test is often made only to the introduction, in which case merely to ensure that the performance is sufficient.

However, among other things, software updates, and service use changes affect the system’s ability to continue to serve the users. That is why frequently encountered situations where a network is down or the operation has slowed down considerably.

Source: http://m.tietoviikko.fi/Uutiset/Palvelinten+optimointi+s%C3%A4%C3%A4st%C3%A4isi+kymmenen+ydinreaktorin+verran+energiaa]]></description>
		<content:encoded><![CDATA[<p>If the servers are too much compared to the performance of a real need, it will cause unnecessary energy consumption, maintenance costs and increase the lead to excessive investment in equipment. If, however, the service performance is inadequate, at worst, it can slow down or crash critical network services and result in losses.</p>
<p>The server capacity testing is currently often lacking, since each service will have to draw up its own testing. The test preparation is hard work and requires a lot of expertise. Therefore, the test is often made only to the introduction, in which case merely to ensure that the performance is sufficient.</p>
<p>However, among other things, software updates, and service use changes affect the system’s ability to continue to serve the users. That is why frequently encountered situations where a network is down or the operation has slowed down considerably.</p>
<p>Source: <a href="http://m.tietoviikko.fi/Uutiset/Palvelinten+optimointi+s%C3%A4%C3%A4st%C3%A4isi+kymmenen+ydinreaktorin+verran+energiaa" rel="nofollow">http://m.tietoviikko.fi/Uutiset/Palvelinten+optimointi+s%C3%A4%C3%A4st%C3%A4isi+kymmenen+ydinreaktorin+verran+energiaa</a></p>
]]></content:encoded>
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		<title>By: Tomi Engdahl</title>
		<link>https://www.epanorama.net/blog/2012/07/07/can-maintenance-make-data-centers-less-reliable/comment-page-1/#comment-23979</link>
		<dc:creator><![CDATA[Tomi Engdahl]]></dc:creator>
		<pubDate>Wed, 10 Oct 2012 08:07:57 +0000</pubDate>
		<guid isPermaLink="false">http://www.epanorama.net/blog/?p=6831#comment-23979</guid>
		<description><![CDATA[Advantages of infrared scanning for data centers
http://www.cablinginstall.com/articles/2012/09/infrared-scanning-data-centers.html

&quot;A thorough infrared scan analysis can indicate hot spots and anomalies in electrical equipment that might compromise data center network reliability caused by high heat.&quot;

Koty then listed the following three ways IR scanning can support data center uptime.

1.    Detecting worn bearings, which may indicate above-normal heat in electrical systems
2.   Early-stage detection of irregularities in a data center&#039;s support infrastructure
3.   Non-invasively detecting problems hidden from the naked eye]]></description>
		<content:encoded><![CDATA[<p>Advantages of infrared scanning for data centers<br />
<a href="http://www.cablinginstall.com/articles/2012/09/infrared-scanning-data-centers.html" rel="nofollow">http://www.cablinginstall.com/articles/2012/09/infrared-scanning-data-centers.html</a></p>
<p>&#8220;A thorough infrared scan analysis can indicate hot spots and anomalies in electrical equipment that might compromise data center network reliability caused by high heat.&#8221;</p>
<p>Koty then listed the following three ways IR scanning can support data center uptime.</p>
<p>1.    Detecting worn bearings, which may indicate above-normal heat in electrical systems<br />
2.   Early-stage detection of irregularities in a data center&#8217;s support infrastructure<br />
3.   Non-invasively detecting problems hidden from the naked eye</p>
]]></content:encoded>
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	<item>
		<title>By: Intel Embraces Oil Immersion Cooling For Servers &#171; Tomi Engdahl&#8217;s ePanorama blog</title>
		<link>https://www.epanorama.net/blog/2012/07/07/can-maintenance-make-data-centers-less-reliable/comment-page-1/#comment-23978</link>
		<dc:creator><![CDATA[Intel Embraces Oil Immersion Cooling For Servers &#171; Tomi Engdahl&#8217;s ePanorama blog]]></dc:creator>
		<pubDate>Tue, 18 Sep 2012 06:40:23 +0000</pubDate>
		<guid isPermaLink="false">http://www.epanorama.net/blog/?p=6831#comment-23978</guid>
		<description><![CDATA[[...] can be messy to maintain. A little mineral oil spreads a long way (ie., it’s messy). If you plan to minimize the needed hardware maintenance and keep spare clothes when working with servers, the messiness might to be a very big issue [...] ]]></description>
		<content:encoded><![CDATA[<p>[...] can be messy to maintain. A little mineral oil spreads a long way (ie., it’s messy). If you plan to minimize the needed hardware maintenance and keep spare clothes when working with servers, the messiness might to be a very big issue [...] </p>
]]></content:encoded>
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	<item>
		<title>By: Tomi Engdahl</title>
		<link>https://www.epanorama.net/blog/2012/07/07/can-maintenance-make-data-centers-less-reliable/comment-page-1/#comment-23977</link>
		<dc:creator><![CDATA[Tomi Engdahl]]></dc:creator>
		<pubDate>Wed, 12 Sep 2012 08:30:54 +0000</pubDate>
		<guid isPermaLink="false">http://www.epanorama.net/blog/?p=6831#comment-23977</guid>
		<description><![CDATA[In-house IT: poor value for money claims new survey
http://www.cloudpro.co.uk/cloud-essentials/private-cloud/4565/house-it-poor-value-money-claims-new-survey

CIOs increasingly think that on-premise IT systems are a waste of resources and cloud is the future

According to a new survey from Savvis, three out of five IT and business managers  believe owning and operating in-house data centres will drive computing costs upwards and waste resources.

In addition, more than half of all CIOs believe they have wasted money on IT purchases, indeed a whopping 66 percent of US respondents have a purchase they regret making.

The dissatisfaction with in-house IT is leading to an increased take-up in cloud according to the research, which was carried out by Vanson Bourne.

Eighty five percent of companies are now using some form of cloud service.

Most organisations are moving to private cloud - 42 percent, compared to 22 percent of public cloud users.]]></description>
		<content:encoded><![CDATA[<p>In-house IT: poor value for money claims new survey<br />
<a href="http://www.cloudpro.co.uk/cloud-essentials/private-cloud/4565/house-it-poor-value-money-claims-new-survey" rel="nofollow">http://www.cloudpro.co.uk/cloud-essentials/private-cloud/4565/house-it-poor-value-money-claims-new-survey</a></p>
<p>CIOs increasingly think that on-premise IT systems are a waste of resources and cloud is the future</p>
<p>According to a new survey from Savvis, three out of five IT and business managers  believe owning and operating in-house data centres will drive computing costs upwards and waste resources.</p>
<p>In addition, more than half of all CIOs believe they have wasted money on IT purchases, indeed a whopping 66 percent of US respondents have a purchase they regret making.</p>
<p>The dissatisfaction with in-house IT is leading to an increased take-up in cloud according to the research, which was carried out by Vanson Bourne.</p>
<p>Eighty five percent of companies are now using some form of cloud service.</p>
<p>Most organisations are moving to private cloud &#8211; 42 percent, compared to 22 percent of public cloud users.</p>
]]></content:encoded>
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