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</o:shapelayout></xml><![endif]--></head><body lang=EN-GB link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Trebuchet MS","sans-serif"'>Hi All,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Trebuchet MS","sans-serif"'><o:p>&nbsp;</o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Trebuchet MS","sans-serif"'>I have the following setup:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Trebuchet MS","sans-serif"'><o:p>&nbsp;</o:p></span></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-size:10.0pt;font-family:"Trebuchet MS","sans-serif"'><span style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><![endif]><span style='font-size:10.0pt;font-family:"Trebuchet MS","sans-serif"'>2x CentOS 6.3 servers with Gluster 3.2<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-size:10.0pt;font-family:"Trebuchet MS","sans-serif"'><span style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><![endif]><span style='font-size:10.0pt;font-family:"Trebuchet MS","sans-serif"'>I then have a MD3200i which has volumes mounted to both gluster servers using iSCSI to give additional space.<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-size:10.0pt;font-family:"Trebuchet MS","sans-serif"'><span style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><![endif]><span style='font-size:10.0pt;font-family:"Trebuchet MS","sans-serif"'>The gluster server is then mounted as a primary SR to my Xen pool and is used for hosting VHD&#8217;s.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Trebuchet MS","sans-serif"'><o:p>&nbsp;</o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Trebuchet MS","sans-serif"'>I am getting fantastic performance from this setup, however recently I have started to face a few issues. Twice recently I have been created a new VM using a template, which involves creating a new file on the gluster nfs share. When this happens, a few of my servers in the Xen Pool loose connection to the gluster share and are unable to read/write the heart beat file which is stored on the share. When this happens, the Xen servers fence (which basically means they shut themselves down, including any VM&#8217;s running on them).<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Trebuchet MS","sans-serif"'><o:p>&nbsp;</o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Trebuchet MS","sans-serif"'>Does anyone know if there is a reason why this might happen? Does Gluster ever put a file lock on everything/anything in the directory, especially during times of heavy write?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Trebuchet MS","sans-serif"'><o:p>&nbsp;</o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Trebuchet MS","sans-serif"'>There is no geo-replication currently running on this setup.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Trebuchet MS","sans-serif"'><o:p>&nbsp;</o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Trebuchet MS","sans-serif"'>Thanks for any input.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'>&nbsp;<o:p></o:p></span></p><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0 style='border-collapse:collapse'><tr><td width=284 colspan=2 valign=top style='width:213.05pt;border:none;border-top:solid windowtext 1.0pt;padding:0cm 5.4pt 0cm 0cm'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Trebuchet MS","sans-serif";color:black;mso-fareast-language:EN-GB'>Tom Bean</span></b><span style='font-size:12.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'><o:p></o:p></span></p></td><td width=284 valign=top style='width:213.05pt;padding:0cm 5.4pt 0cm 0cm'><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'>&nbsp;<o:p></o:p></span></p></td></tr><tr><td width=568 colspan=3 valign=top style='width:426.1pt;padding:0cm 5.4pt 0cm 0cm'><p class=MsoNormal style='text-align:justify'><span style='font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";color:black;mso-fareast-language:EN-GB'>Infrastructure &amp; Support Analyst</span><span style='font-size:12.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'>&nbsp;<o:p></o:p></span></p></td></tr><tr><td width=568 colspan=3 valign=top style='width:426.1pt;padding:0cm 5.4pt 0cm 0cm'><p class=MsoNormal style='text-align:justify'><b><span style='font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";color:black;mso-fareast-language:EN-GB'>The Changing Workplace</span></b><span style='font-size:12.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'><o:p></o:p></span></p></td></tr><tr><td width=73 valign=top style='width:55.0pt;padding:0cm 5.4pt 0cm 0cm'><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'>Phone: </span><span style='font-size:12.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'>Fax: </span><span style='font-size:12.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'>Email: </span><span style='font-size:12.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'>Skype: </span><span style='font-size:12.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'>Address: </span><span style='font-size:12.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'>Website: </span><span style='font-size:12.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'>News:</span><span style='font-size:12.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'><o:p></o:p></span></p></td><td width=504 colspan=2 valign=top style='width:378.15pt;padding:0cm 5.4pt 0cm 0cm'><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'>+44 (0)1444 44 1000 ext 316</span><span style='font-size:12.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'>+44 (0)1444 44 0944</span><span style='font-size:12.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'><a href="mailto:tom.bean@changingworkplace.com"><span style='color:blue'>tom.bean@changingworkplace.com</span></a></span><span style='font-size:12.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'>Contact me via <a href="skype:thomas.bean.cwp?chat"><span style='color:blue'>Skype</span></a> </span><span style='font-size:12.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'>1 Boltro Road, Haywards Heath, RH16 1BY, United Kingdom</span><span style='font-size:12.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'><a href="http://www.changingworkplace.com/"><span style='color:blue'>changingworkplace.com</span></a></span><span style='font-size:12.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'>Sign up for <a href="http://visitor.r20.constantcontact.com/d.jsp?llr=wbsdkygab&amp;p=oi&amp;m=1106769987638" target="_blank"><span style='color:blue'>our newsletter</span></a></span><span style='font-size:12.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'><o:p></o:p></span></p></td></tr><tr><td width=667 colspan=3 valign=top style='width:500.0pt;padding:8.5pt 5.4pt 8.5pt 0cm'><p class=MsoNormal><a href="https://twitter.com/The_CWP"><span style='font-size:12.0pt;font-family:"Trebuchet MS","sans-serif";color:blue;mso-fareast-language:EN-GB;text-decoration:none'><img border=0 width=32 height=32 id="_x0000_i1027" src="cid:image001.gif@01CE0B8B.589CBDF0" alt="Description: C:\Users\tomb\AppData\Roaming\Microsoft\Signatures\Tom Bean_files\image001.gif"></span></a><a href="http://facebook.com/TheChangingWorkplace"><span style='font-size:12.0pt;font-family:"Trebuchet MS","sans-serif";color:blue;mso-fareast-language:EN-GB;text-decoration:none'><img border=0 width=32 height=32 id="_x0000_i1026" src="cid:image002.gif@01CE0B8B.589CBDF0" alt="Description: C:\Users\tomb\AppData\Roaming\Microsoft\Signatures\Tom Bean_files\image002.gif"></span></a><a href="http://www.linkedin.com/company/the-changing-workplace"><span style='font-size:12.0pt;font-family:"Trebuchet MS","sans-serif";color:blue;mso-fareast-language:EN-GB;text-decoration:none'><img border=0 width=32 height=32 id="_x0000_i1025" src="cid:image003.gif@01CE0B8B.589CBDF0" alt="Description: C:\Users\tomb\AppData\Roaming\Microsoft\Signatures\Tom Bean_files\image003.gif"></span></a><span style='font-size:12.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'><o:p></o:p></span></p></td></tr><tr><td width=667 colspan=3 valign=top style='width:500.0pt;padding:0cm 5.4pt 0cm 0cm'><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";color:black;mso-fareast-language:EN-GB'>Changing the world we work in by providing best-in-class software services to the Corporate Real Estate sector</span><span style='font-size:12.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'><o:p></o:p></span></p></td></tr><tr><td width=568 colspan=3 valign=top style='width:426.1pt;padding:0cm 5.4pt 0cm 0cm'><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";color:gray;mso-fareast-language:EN-GB'>Please don't print this e-mail unless you really need to</span><span style='font-size:12.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'><o:p></o:p></span></p></td></tr><tr><td width=73 style='width:54.75pt;padding:0cm 0cm 0cm 0cm'></td><td width=211 style='width:158.25pt;padding:0cm 0cm 0cm 0cm'></td><td width=383 style='width:287.25pt;padding:0cm 0cm 0cm 0cm'></td></tr></table><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'>&nbsp;<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Trebuchet MS","sans-serif";mso-fareast-language:EN-GB'>&nbsp;</span><o:p></o:p></p></div><br>Important Information<br>
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The Changing Workplace cannot accept any responsibility for the accuracy or completeness of the contents of this e-mail as it has been transmitted over a public network and Internet communications are not secure.<br>
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The views expressed in this message are those of the individual sender, except where specifically stated to be the view of The Changing Workplace. All statements made in this e-mail are subject to contract. The contents are not to be regarded as a contractual offer or acceptance. The sender is not authorised to bind The Changing Workplace contractually.<br>
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The Changing Workplace is a limited company registered in England and Wales under company number 3614433 whose registered office is at 1 Boltro Road, Haywards Heath, West Sussex, RH16 1BY, United Kingdom.<br>
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