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	<title>Chasing Nuts &#187; Computers are fun</title>
	<atom:link href="http://www.chasingnuts.com/category/computers-are-fun/feed/" rel="self" type="application/rss+xml" />
	<link>http://www.chasingnuts.com</link>
	<description>Life is complex: it has real and imaginary components.</description>
	<lastBuildDate>Wed, 19 May 2010 15:42:36 +0000</lastBuildDate>
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		<title>Cleaning up pg_attribute bloat</title>
		<link>http://www.chasingnuts.com/2010/cleaning_pg_attribute_bloat/</link>
		<comments>http://www.chasingnuts.com/2010/cleaning_pg_attribute_bloat/#comments</comments>
		<pubDate>Wed, 19 May 2010 15:42:36 +0000</pubDate>
		<dc:creator>Aaron Thul</dc:creator>
				<category><![CDATA[Computers are fun]]></category>
		<category><![CDATA[PostgreSQL]]></category>
		<category><![CDATA[DBA]]></category>

		<guid isPermaLink="false">http://www.chasingnuts.com/?p=179</guid>
		<description><![CDATA[Around a year ago we made some big changes to the ETL process in our Oncology data warehouse.  The change allowed us to greatly reduce bloat in the data warehouse indexes and tables.  The only problem, this system uses lots and lots and lots of temp tables.  The result of this, we are now bloating the PostgreSQL catalog [...]]]></description>
			<content:encoded><![CDATA[<p>Around a year ago we made some big changes to the ETL process in our <a href="https://www.e-mol.net">Oncology data warehouse</a>.  The change allowed us to greatly reduce <a href="http://wiki.postgresql.org/wiki/Show_database_bloat">bloat</a> in the data warehouse indexes and tables.  The only problem, this system uses lots and lots and lots of temp tables.  The result of this, we are now bloating the <a href="http://www.postgresql.org/">PostgreSQL</a> catalog table pg_catalog.pg_class a substantial amount.  Fortunately the community was a great help and some <a href="http://archives.postgresql.org/pgsql-performance/2005-06/msg00233.php">e-mails</a> on the PostgesSQL e-mail list pointed to a <a href="http://archives.postgresql.org/pgsql-performance/-06/msg00234.php">solution</a>.</p>
<p>The simple solution I decided to take, just put this into a nightly cron job:</p>
<pre>
<div id="_mcePaste">VACUUM FULL  pg_catalog.pg_class;</div>
<div id="_mcePaste">REINDEX TABLE pg_catalog.pg_class;</div>
<div id="_mcePaste"><span style="font-family: Georgia, 'Times New Roman', 'Bitstream Charter', Times, serif; line-height: 19px; white-space: normal; font-size: 13px;">Now pg_attribute could not be cleaner, I love simple solutions. </span></div>
</pre>
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		<item>
		<title>iSCSI SAN Suggestions</title>
		<link>http://www.chasingnuts.com/2009/iscsi-san-suggestions/</link>
		<comments>http://www.chasingnuts.com/2009/iscsi-san-suggestions/#comments</comments>
		<pubDate>Fri, 06 Mar 2009 13:46:25 +0000</pubDate>
		<dc:creator>Aaron Thul</dc:creator>
				<category><![CDATA[Computers are fun]]></category>
		<category><![CDATA[PostgreSQL]]></category>

		<guid isPermaLink="false">http://www.chasingnuts.com/?p=159</guid>
		<description><![CDATA[We are facing an immediate need to refresh and expand some of our iSCSI storage we are running our PostgreSQL instance on.  I am open to just about anything but I wondered if this group would have any suggestions.  One item that is a bit unique to our situation is I am not [...]]]></description>
			<content:encoded><![CDATA[<p>We are facing an immediate need to refresh and expand some of our iSCSI storage we are running our PostgreSQL instance on.  I am open to just about anything but I wondered if this group would have any suggestions.  One item that is a bit unique to our situation is I am not in the need of staggering performance as I am in the need for very cost effective large mounts of storage.  For more details on what I am doing: <a href="http://www.slideshare.net/AaronThul/this-is-your-postgresql-on-drugs">http://www.slideshare.net/AaronThul/this-is-your-postgresql-on-drugs</a></p>
<p>At the moment I am looking at <a href="http://www.sun.com/storage/disk_systems/unified_storage/">Sun Storage 7000 Unified Storage Systems</a> or a <a href="http://www.equallogic.com/">Dell Equallogic</a>.  Would anyone like to suggest other options?  Has anyone had any problems with those vendors? Anyone like to share a glowing review or success story?</p>
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		<item>
		<title>Hit the road Itunes</title>
		<link>http://www.chasingnuts.com/2008/hit-the-road-itunes/</link>
		<comments>http://www.chasingnuts.com/2008/hit-the-road-itunes/#comments</comments>
		<pubDate>Sat, 06 Dec 2008 23:25:37 +0000</pubDate>
		<dc:creator>Aaron Thul</dc:creator>
				<category><![CDATA[Computers are fun]]></category>
		<category><![CDATA[FOSS]]></category>
		<category><![CDATA[Ubuntu]]></category>

		<guid isPermaLink="false">http://www.chasingnuts.com/?p=141</guid>
		<description><![CDATA[I have been at FOSSCamp for the last two days learning about all kinds of great FOSS.  One outstanding piece of software that Jorge showed me was Songbird.  After five minutes of playing with it I could not contain my excitement. Jorge told me to pause my excitement and pulled me into a room to [...]]]></description>
			<content:encoded><![CDATA[<p>I have been at <a href="http://fosscamp.org/">FOSSCamp</a> for the last two days learning about all kinds of great FOSS.  One outstanding piece of software that <a href="http://stompbox.typepad.com/">Jorge</a> showed me was <a href="http://getsongbird.com/">Songbird</a>.  After five minutes of playing with it I could not contain my excitement. Jorge told me to pause my excitement and pulled me into a room to meet <a href="http://whacked.net/">Stephen Lau</a>, a Songbird developer.  Apparently I made an impression once my enthusiasm was unpaused and Stephen blogged about the incident that you are able to read below or the full post <a href="http://whacked.net/2008/12/05/fosscamp/">here.</a></p>
<blockquote><p>At the end of that session Jorge brought a few folks over who had just installed Songbird for the first time who had some really great praise and comments for us. It’s super gratifying to have someone come up who has just installed Songbird for the first time and gets it… especially having worked so hard on it for the past year. We got lots of warm praise and supportive words for getting Songbird into Ubuntu’s repositories.</p></blockquote>
<p>Songbird first impressed me with Itunes library import.  It pulled over all my music, playlists, music rating, and more.  Then it offered to keep my misic in sync with what ever I put into my Itunes library.  Next it knocked my socks off with features like concerts, last.fm album art, song lyrics, &amp; SHOUTcast support.  The application just works and offers me more then Itunes ever has.  I don&#8217;t think I have a reason to launch Itunes ever again so it can just hit the road.</p>
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		<item>
		<title>We are back</title>
		<link>http://www.chasingnuts.com/2008/we-are-back/</link>
		<comments>http://www.chasingnuts.com/2008/we-are-back/#comments</comments>
		<pubDate>Fri, 18 Jul 2008 16:08:03 +0000</pubDate>
		<dc:creator>Aaron Thul</dc:creator>
				<category><![CDATA[Computers are fun]]></category>

		<guid isPermaLink="false">http://www.chasingnuts.com/?p=101</guid>
		<description><![CDATA[After some unfortunate down time this site is back online.  Thank you to all the people who brought the error to my attention.
This time the site being down was not my fault:
    Hello,
    One of the fileserers that your machines are mounted to blew a drive. Our Admins have resolved the matter. All services (web, [...]]]></description>
			<content:encoded><![CDATA[<p>After some unfortunate down time this site is back online.  Thank you to all the people who brought the error to my attention.</p>
<p>This time the site being down was not my fault:</p>
<blockquote><p>    Hello,</p>
<p>    One of the fileserers that your machines are mounted to blew a drive. Our Admins have resolved the matter. All services (web, mail, etc. ) are fully funtional. We sincerely apologize for any inconvenience this has caused and appreciate your patience. If you have any additional questions, please let us know.</p>
<p>           Thanks</p></blockquote>
]]></content:encoded>
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		</item>
		<item>
		<title>Anyone know of a good laptop stand?</title>
		<link>http://www.chasingnuts.com/2008/anyone-know-of-a-good-laptop-stand/</link>
		<comments>http://www.chasingnuts.com/2008/anyone-know-of-a-good-laptop-stand/#comments</comments>
		<pubDate>Tue, 17 Jun 2008 16:50:16 +0000</pubDate>
		<dc:creator>Aaron Thul</dc:creator>
				<category><![CDATA[Apple]]></category>
		<category><![CDATA[Computers are fun]]></category>

		<guid isPermaLink="false">http://www.chasingnuts.com/?p=97</guid>
		<description><![CDATA[My fist two weeks with the laptop have been a real joy.  Normally I spend days setting up a new system but I was able to transfer everything including installed programs from my Imac over to my MacBook Pro.  I REALLY like how apple does this and I wish that every system let you move [...]]]></description>
			<content:encoded><![CDATA[<p>My fist two weeks with the laptop have been a real joy.  Normally I spend days setting up a new system but I was able to transfer everything including <strong>installed programs</strong> from my Imac over to my MacBook Pro.  I REALLY like how apple does this and I wish that every system let you move installed applications so easily. I bet it saved me 45+ hours of work, this is why I am now Steve Jobs fanboy.  </p>
<p>When at my house I connect my laptop to my apple display and use a bluetooth key board and mouse.  I love the setup but recently some called to attention one &#8216;problem&#8217; with it.  I wanted to have the laptop the same height as the screen so when I looked around my den I grabbed the fist thing I had that was the desired height.</p>
<p><img style="margin: 5px;" src="http://farm4.static.flickr.com/3051/2586953683_ee16965bef.jpg?v=0" alt="Macbook Pro Desk Setup" width="500" height="375" />I</p>
<p>I have not used my copy of Office XP Developer in some time due to the fact I purchased Office 2008 for the mac.  I love it when I am able to reuse something however it is a bit of an eye sore compared to the rest of the setup.   Does anyone know of a good laptop stand that is frugal?  I just spend all my play money on a new laptop to I have to be price conscious.  If you do know of one drop me a e-mail or leave a comment on the blog please.  </p>
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		</item>
		<item>
		<title>My early birthday present</title>
		<link>http://www.chasingnuts.com/2008/my-early-birthday-present/</link>
		<comments>http://www.chasingnuts.com/2008/my-early-birthday-present/#comments</comments>
		<pubDate>Thu, 29 May 2008 12:51:18 +0000</pubDate>
		<dc:creator>Aaron Thul</dc:creator>
				<category><![CDATA[Apple]]></category>
		<category><![CDATA[Computers are fun]]></category>

		<guid isPermaLink="false">http://www.chasingnuts.com/?p=96</guid>
		<description><![CDATA[
Once again I am dead to Jorge :-)
]]></description>
			<content:encoded><![CDATA[<p><img style="border: 5px solid black; margin-top: 5px; margin-bottom: 5px;" src="http://farm3.static.flickr.com/2299/2533347018_8f5a525e8e.jpg?v=0" alt="" width="500" height="375" /></p>
<p><a href="http://www.chasingnuts.com/2006/i-am-dead-to-whiprush/">Once again</a> I am dead to <a href="http://stompbox.typepad.com/">Jorge</a> :-)</p>
]]></content:encoded>
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		<item>
		<title>Jumbo Frames and Intel</title>
		<link>http://www.chasingnuts.com/2008/jumbo-frames-and-intel/</link>
		<comments>http://www.chasingnuts.com/2008/jumbo-frames-and-intel/#comments</comments>
		<pubDate>Tue, 06 May 2008 13:18:10 +0000</pubDate>
		<dc:creator>Aaron Thul</dc:creator>
				<category><![CDATA[Computers are fun]]></category>

		<guid isPermaLink="false">http://www.chasingnuts.com/?p=92</guid>
		<description><![CDATA[I am working on deploying a shiny new iSCSI SAN (Storage Area Network) for EMOL and I have run into a bit of an annoyance. First why does Intel make so many different versions of the Intel PRO/1000 card? We purchased a server with two on-board Intel PRO/1000 cards and added a PCI-X Intel PRO/1000 [...]]]></description>
			<content:encoded><![CDATA[<p style="margin: 0in 0in 10pt;">I am working on deploying a shiny new <a href="http://en.wikipedia.org/wiki/ISCSI" target="_blank">iSCSI </a>SAN (Storage Area Network) for <a href="http://www.e-mol.net" target="_blank">EMOL </a>and I have run into a bit of an annoyance. First why does Intel make so many different versions of the Intel PRO/1000 card? We purchased a server with two on-board Intel PRO/1000 cards and added a PCI-X Intel PRO/1000 card with the plan to <a href="http://en.wikipedia.org/wiki/Channel_bonding" target="_blank">Ethernet Bond</a> the two on-board cards and use the add-on card for server management.</p>
<p class="MsoNormal" style="margin: 0in 0in 10pt;">This is a plan that definitely did not come together. First the main board manufacturer thought it would be a good idea to use two different Intel chips for the two Ethernet controllers. One is an Intel PRO/1000 PL the other is an Intel PRO/1000 PM. The add-on card we purchased is an Intel PRO/1000 PT. So it turns out the Intel cards are far from the same and I am not happy about that. It took me much Internet digging to find this out.</p>
<blockquote>
<p class="MsoNormal" style="margin: 0in 0in 10pt;">Intel PRO/1000 PM &#8211; does not support jumbo frames<br />
Intel PRO/1000 PT &#8211; supports jumbo frames in Microsoft Windows operating systems only when Intel PROSet for Windows Device Manager is installed and only up to 9238 bytes.<br />
Intel PRO/1000 PL &#8211; support jumbo frames larger than 9238 bytes.</p>
</blockquote>
<p class="MsoNormal" style="margin: 0in 0in 10pt;">So what are my options? Well I do not run Windows, and I would like to run at a minimum two network ports teamed. Which means now I need to order an additional Ethernet card or a two port Ethernet card. What I do know is it will likely not be a Intel Pro 1000.</p>
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		<item>
		<title>How not to wash a laptop</title>
		<link>http://www.chasingnuts.com/2008/how-not-to-wash-a-laptop/</link>
		<comments>http://www.chasingnuts.com/2008/how-not-to-wash-a-laptop/#comments</comments>
		<pubDate>Fri, 11 Apr 2008 13:18:07 +0000</pubDate>
		<dc:creator>Aaron Thul</dc:creator>
				<category><![CDATA[Computers are fun]]></category>

		<guid isPermaLink="false">http://www.chasingnuts.com/?p=84</guid>
		<description><![CDATA[My laptop screen has never looked so interesting and it is all from a little water. I have a backpack that I have had for years that I keep my laptop in. I also have the backpack loaded with miscellaneous other item, you know usually backpack stuff: papers pens and, most days, my water bottle. [...]]]></description>
			<content:encoded><![CDATA[<p class="MsoNormal" style="margin: 0in 0in 10pt;"><span style="font-size: small;"><span style="font-family: Calibri;">My laptop screen has never looked so interesting and it is all from a little water.<span style="mso-spacerun: yes;"> </span>I have a backpack that I have had for years that I keep my laptop in.<span style="mso-spacerun: yes;"> </span>I also have the backpack loaded with miscellaneous other item, you know usually backpack stuff: papers pens and, most days, my water bottle.<span style="mso-spacerun: yes;"> </span></span></span></p>
<p class="MsoNormal" style="margin: 0in 0in 10pt;"><span style="font-family: Calibri; font-size: small;">The water bottle is where things went all wrong yesterday.<span style="mso-spacerun: yes;"> </span>I filled it up as usual in the morning and tossed it into my backpack.<span style="mso-spacerun: yes;"> </span>When I arrived at today&#8217;s work location, I opened the backpack up and was a tad surprised to see an empty water bottle.<span style="mso-spacerun: yes;"> </span>I remember thinking to myself: hmmm I thought I filled that.<span style="mso-spacerun: yes;"> </span>Not yet alarmed, I went to grab my laptop and this is when the horror struck me.<span style="mso-spacerun: yes;"> </span>I pulled my laptop out of my to have it draining water all over the floor.<span style="mso-spacerun: yes;"> </span>I look into the bottom of the backpack and see that there was over 2 inches of water in the bottom.<span style="mso-spacerun: yes;"> </span>I was suddenly impressed with <a href="http://www.eddiebauer.com/EB/Bags--Gear/Backpacks--Messengers/index.cat?viewAll=y">Eddie Bauer Backpacks</a>.<span style="mso-spacerun: yes;"> </span>This one is over 10 years old, and with a half liter of water in it, the backpack was nearly completely water-tight.<span style="mso-spacerun: yes;"> </span>I took the backpack over to the sink and poured out all the water.<span style="mso-spacerun: yes;"> </span>I wiped it out and it has never been cleaner.</span></p>
<p class="MsoNormal" style="margin: 0in 0in 10pt;"><span style="font-family: Calibri; font-size: small;">I run back to the laptop which is still dripping and pop the battery out, but to be honest I had written the system off at that point.<span style="mso-spacerun: yes;"> </span>It was still dripping and it sat hard drive-end in the water for at least 10 minutes.<span style="mso-spacerun: yes;"> </span>I started wiping the laptop down, opening every cover and ejecting the battery and drives.<span style="mso-spacerun: yes;"> </span>The hard drive was soaked, and I thought there was no way this thing would ever work again.<span style="mso-spacerun: yes;"> </span>I let everything dry out for 12 hours and put it back together and crossed my finger. I was shocked!<span style="mso-spacerun: yes;"> </span>The system booted up and the only problem as a resulting of its bathing is a funny pattern on my screen.<span style="mso-spacerun: yes;"> </span><br style="mso-special-character: line-break;" /><img style="margin: 5px;" src="http://farm3.static.flickr.com/2403/2405577442_69d2509cb4.jpg" alt="" width="500" height="375" /><br style="mso-special-character: line-break;" /></span></p>
<p class="MsoNormal" style="margin: 0in 0in 10pt;"><span style="font-size: small;"><span style="font-family: Calibri;">I am grateful that the laptop is working because with <a href="http://www.penguicon.org">Penguicon only a week away </a>I do not have time to operate with a broken laptop.<span style="mso-spacerun: yes;"> I would guess that the patern is from water stuck in the screen and that it will dry out better with time. </span></span></span></p>
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