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<td class="yiv3958854920newsletterTitle" style="color: rgb(255, 255, 255); font-family: calibri, arial, sans-serif; font-size: 24px; padding-top: 10px; padding-left: 10px;" align="left"><b>Word of the Day</b></td>
<td align="right" valign="top" style="padding-left:10px;padding-right:10px;padding-top:19px;float:right;"><a rel="nofollow" target="_blank" href="http://go.techtarget.com/r/26662651/15327947"><img src="http://cdn.ttgtmedia.com/rms/newsletters/whatis/headerLogo_137x21.png" alt="WhatIs.com" border="0" class="yiv3958854920logoWidth"></a></td>
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<td colspan="2" style="color: rgb(204, 204, 204); font-family: calibri, arial, sans-serif; font-size: 12px; padding-left: 10px; padding-bottom: 10px;" align="left"><i>Daily updates on the latest technology terms</i> | February 18, 2014</td>
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<td colspan="2" style="font-family: Calibri, arial, sans-serif; font-size: 32px; font-weight: bold; padding: 0px 0px 5px; color: rgb(4, 172, 160);"><span style="margin-top:0;margin-bottom:0;"></span>STONITH</td>
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<div>STONITH (Shoot The Other Node In The Head) is a Linux service for maintaining the integrity of nodes in a high-availability (HA) cluster.</div>
<div>STONITH automatically powers down a node that is not working correctly. An administrator might employ STONITH if one of the nodes in a cluster can not be reached by the other node(s) in the cluster.</div>
<div>STONITH is traditionally implemented by hardware solutions that allow a cluster to talk to a physical server without involving the operating system (OS). Although hardware-based STONITH works well, this approach requires specific hardware to be installed in each server, which can make the nodes more expensive and result in hardware vendor lock-in. A disk-based solution, such as split brain detection (SBD), can be easier to implement because this approach requires no specific
hardware. <a rel="nofollow" target="_blank" href="http://go.techtarget.com/r/26662653/15327947">Continued...</a><br>
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<div style="margin-top:0;margin-bottom:0;"><b>Related terms:</b></div>
<div style="margin-top:0;margin-bottom:0;"><a rel="nofollow" target="_blank" href="http://go.techtarget.com/r/26662654/15327947">high availability</a></div>
<div style="margin-top:0;margin-bottom:0;"><a rel="nofollow" target="_blank" href="http://go.techtarget.com/r/26662655/15327947">cluster</a></div>
<div style="margin-top:0;margin-bottom:0;"><a rel="nofollow" target="_blank" href="http://go.techtarget.com/r/26662656/15327947">I/O fencing</a></div>
<div style="margin-top:0;margin-bottom:0;"><a rel="nofollow" target="_blank" href="http://go.techtarget.com/r/26662657/15327947">Cluster Labs Pacemaker</a></div>
<div style="margin-top:0;margin-bottom:0;"><a rel="nofollow" target="_blank" href="http://go.techtarget.com/r/26662658/15327947">Heartbeat</a><br>
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<td colspan="2" style="font-family: Calibri, arial, sans-serif; font-size: 21px; color: rgb(51, 51, 51); font-weight: bold; border-bottom-width: 5px; border-bottom-style: solid; border-bottom-color: rgb(141, 207, 200); padding-bottom: 2px;">Quote of the Day</td>
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<td valign="top" style="color: rgb(51, 51, 51); font-family: Calibri, arial, sans-serif; font-size: 14px; padding-left: 10px; padding-top: 15px;"><div style="margin-top:0;margin-bottom:0;"><span style="color:#666;"><img src="http://itknowledgeexchange.techtarget.com/overheard/files/2013/04/bigelow-stephen.jpg" width="60" height="78"><br>
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<td valign="top" style="color: rgb(51, 51, 51); font-family: Calibri, arial, sans-serif; font-size: 14px; padding-left: 10px; padding-top: 15px;"><div style="margin-top:0;margin-bottom:0;">"Windows clustered file systems can generally isolate a defective node logically, while Linux clustered file systems will employ utilities like STONITH to actually power down the questionable node." -- <a rel="nofollow" target="_blank" href="http://go.techtarget.com/r/26662659/15327947">Stephen J. Bigelow</a><br>
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<td valign="top" style="color: rgb(51, 51, 51); font-family: Calibri, arial, sans-serif; font-size: 13px; padding: 7px 0px 0px 10px;"><div style="margin-top:0;margin-bottom:0;">You probably know that arachnophobia is the fear of spiders, but what is nomophobia?<br>
a. fear of numbers<br>
b. fear of mispronouncing a word or name<br>
c. fear of being without a mobile phone<br>
<a rel="nofollow" target="_blank" href="http://go.techtarget.com/r/26662660/15327947">Answer</a></div></td>
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<td colspan="2" style="font-family: Calibri, arial, sans-serif; font-size: 21px; color: rgb(51, 51, 51); font-weight: bold; border-bottom-width: 5px; border-bottom-style: solid; border-bottom-color: rgb(141, 207, 200); padding-bottom: 2px;">Know-IT-All</td>
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<td valign="top" style="color: rgb(102, 102, 102); font-family: Calibri, arial, sans-serif; font-size: 13px; padding: 15px 0px 0px;"><div style="margin-top:0;margin-bottom:0;"><a rel="nofollow" target="_blank" href="http://go.techtarget.com/r/26662661/15327947">Ensuring high availability in the data center</a><br>
High availability of virtual machines is essential, but it is also important to take high availability at the operating system level into account.</div></td>
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<td valign="top" style="color: rgb(102, 102, 102); font-family: Calibri, arial, sans-serif; font-size: 13px; padding: 15px 0px 0px;"><div><a rel="nofollow" target="_blank" href="http://go.techtarget.com/r/26662662/15327947">Safeguarding Linux HA server integrity with STONITH</a><br>
Using a STONITH approach can help reduce the risk of data corruption in a Linux HA cluster.</div></td>
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<td valign="top" style="color: rgb(102, 102, 102); font-family: Calibri, arial, sans-serif; font-size: 13px; padding: 15px 0px 0px;"><div><a rel="nofollow" target="_blank" href="http://go.techtarget.com/r/26662663/15327947">How to implement STONITH in Linux HA clusters<br>
</a>In this tip, you'll read how to implement split brain detection (SBD) STONITH, a program that uses a shared disk device and is easy to implement in most environments.<br>
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