<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns:p="urn:schemas-microsoft-com:office:powerpoint" xmlns:a="urn:schemas-microsoft-com:office:access" xmlns:dt="uuid:C2F41010-65B3-11d1-A29F-00AA00C14882" xmlns:s="uuid:BDC6E3F0-6DA3-11d1-A2A3-00AA00C14882" xmlns:rs="urn:schemas-microsoft-com:rowset" xmlns:z="#RowsetSchema" xmlns:b="urn:schemas-microsoft-com:office:publisher" xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet" xmlns:c="urn:schemas-microsoft-com:office:component:spreadsheet" xmlns:odc="urn:schemas-microsoft-com:office:odc" xmlns:oa="urn:schemas-microsoft-com:office:activation" xmlns:html="http://www.w3.org/TR/REC-html40" xmlns:q="http://schemas.xmlsoap.org/soap/envelope/" xmlns:rtc="http://microsoft.com/officenet/conferencing" xmlns:D="DAV:" xmlns:Repl="http://schemas.microsoft.com/repl/" xmlns:mt="http://schemas.microsoft.com/sharepoint/soap/meetings/" xmlns:x2="http://schemas.microsoft.com/office/excel/2003/xml" xmlns:ppda="http://www.passport.com/NameSpace.xsd" xmlns:ois="http://schemas.microsoft.com/sharepoint/soap/ois/" xmlns:dir="http://schemas.microsoft.com/sharepoint/soap/directory/" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:dsp="http://schemas.microsoft.com/sharepoint/dsp" xmlns:udc="http://schemas.microsoft.com/data/udc" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:sub="http://schemas.microsoft.com/sharepoint/soap/2002/1/alerts/" xmlns:ec="http://www.w3.org/2001/04/xmlenc#" xmlns:sp="http://schemas.microsoft.com/sharepoint/" xmlns:sps="http://schemas.microsoft.com/sharepoint/soap/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:udcs="http://schemas.microsoft.com/data/udc/soap" xmlns:udcxf="http://schemas.microsoft.com/data/udc/xmlfile" xmlns:udcp2p="http://schemas.microsoft.com/data/udc/parttopart" xmlns:wf="http://schemas.microsoft.com/sharepoint/soap/workflow/" xmlns:dsss="http://schemas.microsoft.com/office/2006/digsig-setup" xmlns:dssi="http://schemas.microsoft.com/office/2006/digsig" xmlns:mdssi="http://schemas.openxmlformats.org/package/2006/digital-signature" xmlns:mver="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns:mrels="http://schemas.openxmlformats.org/package/2006/relationships" xmlns:spwp="http://microsoft.com/sharepoint/webpartpages" xmlns:ex12t="http://schemas.microsoft.com/exchange/services/2006/types" xmlns:ex12m="http://schemas.microsoft.com/exchange/services/2006/messages" xmlns:pptsl="http://schemas.microsoft.com/sharepoint/soap/SlideLibrary/" xmlns:spsl="http://microsoft.com/webservices/SharePointPortalServer/PublishedLinksService" xmlns:Z="urn:schemas-microsoft-com:" xmlns:st="" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii"> <meta name="Generator" content="Microsoft Word 12 (filtered medium)"> <style>  </style> </head> <body lang="EN-US" link="blue" vlink="purple"> <div class="Section1"> It is performance issues or directly related to nfs4?<o:p></o:p> If it is performance related take a look at this document:<o:p></o:p> <a href="http://www.redhat.com/f/pdf/rhel/Oracle-10-g-recommendations-v1_2.pdf">http://www.redhat.com/f/pdf/rhel/Oracle-10-g-recommendations-v1_2.pdf</a><o:p></o:p> <o:p> </o:p> I know this is for Oracle, but take a look at the default scheduler and other things in the document we are running Oracle databases off of NetApp NAS devices and had terrible performance issues and this document solved a lot of those. If you Google NFS performance issues Red Hat 5 you will see the kernel has a lot of issues that are said to be fixed, but never seem to be actually corrected.<o:p></o:p> <o:p> </o:p> To turn NFSv4 off you should be able to:<o:p></o:p> <o:p> </o:p> Add the this line to /etc/sysconfig/nfs<o:p></o:p> RPCNFSDARGS=”-N 4”<o:p></o:p> Then restart nfs<o:p></o:p> Stop rpcidmapd service and chkconfig it off<o:p></o:p> <o:p> </o:p> Matt<o:p></o:p> <o:p> </o:p> <div> <div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in"> From: redhat-sysadmin-list-bounces@redhat.com [mailto:redhat-sysadmin-list-bounces@redhat.com] On Behalf Of nitin.gizare@wipro.com Sent: Wednesday, October 27, 2010 10:43 AM To: redhat-sysadmin-list@redhat.com Subject: RHEL 5.0 NFS<o:p></o:p> </div> </div> <o:p> </o:p> Hello<o:p></o:p> <o:p> </o:p> We have Linux servers with RHEL 4.0x version running nfs version 3 has nfs servers.<o:p></o:p> We have added new servers with RHEL 5.0 version.<o:p></o:p> When I do ps –ef | grep nfs I see that nfsd4 is started .<o:p></o:p> We are facing lot of nfs issue on dir which are shared from RHEL 5.0.<o:p></o:p> <o:p> </o:p> Please help me disable nfs version 4 if by default started in RHEL 5.0 so that we can use nfs version 3 in RHEL 5.0.<o:p></o:p> <o:p> </o:p> <o:p> </o:p> <o:p> </o:p> Rgds<o:p></o:p> Nitin<o:p></o:p> <o:p></o:p> <o:p> </o:p> </div> <hr> Sky Road LLC Message Disclaimer This message and any attachment transmitted with it (collectively, this "Message") may contain confidential or privileged information. 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