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	<title>Matthieu &#124; Blog &#187; fail</title>
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	<description>A bit of photos, a bit of tech. Add some thoughts, and here&#039;s what you get.</description>
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		<title>System failures à go go</title>
		<link>http://matthieu.yiptong.ca/2009/11/26/system-failures-a-go-go/</link>
		<comments>http://matthieu.yiptong.ca/2009/11/26/system-failures-a-go-go/#comments</comments>
		<pubDate>Fri, 27 Nov 2009 03:41:44 +0000</pubDate>
		<dc:creator>Matthieu</dc:creator>
				<category><![CDATA[Computers]]></category>
		<category><![CDATA[Work]]></category>
		<category><![CDATA[cisco]]></category>
		<category><![CDATA[crash]]></category>
		<category><![CDATA[fail]]></category>
		<category><![CDATA[server]]></category>

		<guid isPermaLink="false">http://matthieu.yiptong.ca/?p=714</guid>
		<description><![CDATA[Today was quite the day. As the title says, systems were failing all over the place. Our main switch at work (a Cisco 6509) crashed about 3 times this week, causing our vSphere environment to crash repeatedly, taking all the guest VMs with it. We searched for a long while before discovering that a faulty [...]]]></description>
			<content:encoded><![CDATA[<p>Today was quite the day. As the title says, systems were failing all over the place. Our main switch at work (a Cisco 6509) crashed about 3 times this week, causing our vSphere environment to crash repeatedly, taking all the guest VMs with it. We searched for a long while before discovering that a faulty UPS battery was to blame for the switch&#8217;s instability. Meanwhile, we&#8217;re left with a misconfigured iSCSI SAN and 3 ESX hosts with no storage.</p>
<p>At home, my crazy MythTV/OpenVZ/KVM/PBX/Windows 2003/Seedbox/RADIUS server had to be shut down when my home network started acting up. DHCP stopped working, and the machines that were left had difficulty pinging each other. This time, a Cisco device <em>was</em> to blame. A WRT610N router that I use as an ABGN Access-point running DD-WRT had somehow bricked itself and started broadcasting packets on the network, thus flooding my routers and other computers. Then, I tried booting up my server again. MythTV and OpenVZ started up OK, but the qemu-server/kvm machines didn&#8217;t start, throwing &#8220;can&#8217;t open lock for VM 107 &#8216;/var/lock/qemu-server/lock-107.conf&#8217; &#8211; No such file or directory&#8221;. Weird error. The fix is to create the /var/lock/qemu-server folder.</p>
<p>And finally, everything at home is up and running again. We&#8217;ll see tomorrow morning how things go at work. David was staying late today on the phone with Dell EqualLogic specialists, so fingers crossed!</p>]]></content:encoded>
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