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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> </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> </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"'> </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"'> </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"'> </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’s.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Trebuchet MS","sans-serif"'><o:p> </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’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> </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> </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> </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'> <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'> <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 & 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'> <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 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</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 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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 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