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	<title>jmi</title>
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	<link>http://jamie.macisa.ac</link>
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	<pubDate>Thu, 12 Mar 2009 22:34:50 +0000</pubDate>
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		<title>Solaris - now with less FAIL!</title>
		<link>http://jamie.macisa.ac/2009/03/solaris-now-with-less-fail/</link>
		<comments>http://jamie.macisa.ac/2009/03/solaris-now-with-less-fail/#comments</comments>
		<pubDate>Thu, 12 Mar 2009 22:34:50 +0000</pubDate>
		<dc:creator>admin</dc:creator>
		
		<category><![CDATA[*nix]]></category>

		<category><![CDATA[opensolaris]]></category>

		<category><![CDATA[ubuntu]]></category>

		<category><![CDATA[zfs]]></category>

		<guid isPermaLink="false">http://jamie.macisa.ac/?p=18</guid>
		<description><![CDATA[I couldn't SSH in again and sure enough, when I checked in the morning the server had hung.]]></description>
			<content:encoded><![CDATA[<p>Although I’ve had no joy with OpenSolaris on the DL160, we recently picked up a six-bay stock Intel server off of eBay. Although the wrong server was delivered (yay!) I used this as an opportunity to learn a lot about the SR2520 boxes and where to get spare parts for them. I was also pleasantly surprised a how little effort was required to get OpenSolaris on to this box, even ‘though it didn&#8217;t come with a CD-ROM drive - the process for making a bootable USB disk (from another Solaris box) was both simple and effective. Making things even better, two chapters of the OpenSolaris Bible were released, giving me some background reading. Unfortunately that’s where my good luck seems to have run out&#8230;</p>
<p>Having built a RAIDZ array I started benchmarking with some large files copies. The copies were being done while I was SSH’ed in from home but seemed to stop in the middle of testing - I couldn&#8217;t SSH in again and sure enough, when I checked in the morning the server had hung. Giving it the benefit of the doubt I restarted the server and rebuilt the array as RAIDZ2. Again, the server hung in the middle of a file transfer. By this time (bearing in mind the hours spent trying to get OpenSolaris just to boot on the ProLiant), I’d lost all patience with OpenSolaris and put Ubuntu on the new server.</p>
<p>Not two hours into some more benchmarking the server hung again. I did some searching and found out there was a small possibility that a recent Linux kernel bug was the problem here (which I won&#8217;t describe to prevent Google from suggesting there’s any correlation) . The bug was definitely occurring in the storage system. Was it possible that something similar yet unrelated was causing a similar problem in the Solaris kernel? Yes it was possible, but pretty unlikely. However, I installed the only older Linux distro I had kicking around - CentOS 5.2. Sure enough, it hung in the middle of some transfers but this time the logs were showing two different smartd failures on both of the brand new disks we’d bought to fill up the vacant slots on the server. Sigh. Hardware all along&#8230;</p>
<p>So after all of that, chances are that the Solaris install was probably OK after all. My copy of the OpenSolaris bible finally arrived, so now I’ve got some reference material to work with I might five it another shot - third time’s a charm?</p>
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		<title>Octomore</title>
		<link>http://jamie.macisa.ac/2009/01/octomore/</link>
		<comments>http://jamie.macisa.ac/2009/01/octomore/#comments</comments>
		<pubDate>Tue, 20 Jan 2009 21:43:49 +0000</pubDate>
		<dc:creator>admin</dc:creator>
		
		<category><![CDATA[Television]]></category>

		<category><![CDATA[dns]]></category>

		<category><![CDATA[whisky]]></category>

		<guid isPermaLink="false">http://jamie.macisa.ac/?p=9</guid>
		<description><![CDATA[Just finished watching Oz and James Drink to Britain; this week they were in Scotland and featured the Bruichladdich distillery. I recognised the name because they also produce Octomore, a whisky named after a farm (now holiday cottages) where the spring the water used in the dilution process is taken from. 
The holiday cottages have a [...]]]></description>
			<content:encoded><![CDATA[<p>Just finished watching <a title="Oz and James Drink to Britain" href="http://www.radiotimes.com/ListingsServlet?event=10&amp;channelId=105&amp;programmeId=91326322&amp;jspLocation=/jsp/prog_details_fullpage.jsp" target="_blank">Oz and James Drink to Britain</a>; this week they were in Scotland and featured the <a title="The home of Finest Islay Malt" href="http://www.bruichladdich.com/" target="_blank">Bruichladdich</a> distillery. I recognised the name because they also produce Octomore, a whisky named after a farm (now holiday cottages) where the spring the water used in the dilution process is taken from. </p>
<p>The holiday cottages have a <a title="Octomore Farm Cottages" href="http://www.octomore.co.uk/" target="_blank">website </a>- I made changes to its zone file during a migration last month, in fact. It’s always great to see little bits of your daily grind pop up on television.</p>
]]></content:encoded>
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		</item>
		<item>
		<title>Solaris FAIL</title>
		<link>http://jamie.macisa.ac/2009/01/solaris-fail/</link>
		<comments>http://jamie.macisa.ac/2009/01/solaris-fail/#comments</comments>
		<pubDate>Fri, 16 Jan 2009 22:26:08 +0000</pubDate>
		<dc:creator>admin</dc:creator>
		
		<category><![CDATA[*nix]]></category>

		<category><![CDATA[btrfs]]></category>

		<category><![CDATA[opensolaris]]></category>

		<category><![CDATA[proliant dl160 g5]]></category>

		<category><![CDATA[raid-10]]></category>

		<category><![CDATA[solaris]]></category>

		<category><![CDATA[storage]]></category>

		<category><![CDATA[ubuntu]]></category>

		<category><![CDATA[zfs]]></category>

		<guid isPermaLink="false">http://jmi.nfshost.com/?p=3</guid>
		<description><![CDATA[Fantastic - I could put Solaris on there and and get all that ZFS-sy goodness you want in a storage box. In theory, anyway...]]></description>
			<content:encoded><![CDATA[<p>I’ve installed Ubuntu Server on to the backup server at work. There’s a bit of a back story to this one.</p>
<p>A while back we got hold of a QNAP box in work for throwing backups on to. It wasn’t without it&#8217;s faults, but it did the job - it exported NFS shares and had space left over for the occasional request of temporary disk space. It had 4 x 500GB disks, which at the time was pretty big. The disks were running in a RAID-5 configuration, so I was quite happy in my <em>naiveté</em> that when the eventual disk failure occurred we&#8217;d be able to handle it. The disk failures will no doubt still arrive, but they’ve been pre-empted by a failure of the processor fan. A fan I couldn’t find a replacement for.</p>
<p>Rather than buy a new NAS box, I had the great idea to buying a standard server we could replace all the parts of. We ordered an HP ProLiant DL 160 G5, a box that I noticed later on was on the Solaris HCL. Fantastic - I could put Solaris on there and and get all that ZFS-sy goodness you want in a storage box. In theory, anyway&#8230;</p>
<p>Solaris wouldn&#8217;t install. I tried Solaris 10U5, Solaris 10U6, OpenSolaris 2008.5, a few betas and eventually 2008.11. I even tried the (unsupported) Solaris Express, which wouldn&#8217;t even boot from CD. I asked dumb questions on #opensolaris (and to be fair, received some good suggestions). I Googled and found out about <a title="OpenSolaris fails to boot if previous zfs turds are present on disk" href="http://defect.opensolaris.org/bz/show_bug.cgi?id=4858" target="_blank">installation turds</a> and <a title="ZFS boot does not work with removable media (usb flash memory)" href="http://defect.opensolaris.org/bz/show_bug.cgi?id=4755" target="_blank">devid patches</a>. None of it worked - the furthest I ever got was the server hanging at the hostname report (although I got very used a small red line at the bottom left of the screen that I still don’t know the significance of).</p>
<p>Eventually I gave up. Stuck an 8GB USB drive into the box and installed Ubuntu Server 8.10. I don’t have ZFS, but I do have a RAID-10 volume that I’m happy with (even if Steve Cassidy isn’t - he railed against this sort of config in the February PC Pro). With any luck, BTRFS will be along soon (although I’d still love to see ZFS on Linux and have a file system common to  Linux, FreeBSD, OS X and Solaris).</p>
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