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<DIV><FONT size=2>If you can avoid OCFSv2 on a RAC server, better do it. Any
cluster (RAC and OCFS) have it's own instability elements (OCFSv2 have a poor
heartbeat alghoritm and so tend to self-fence without real failure, and (in
addition) is relatively new. It works fine enough to be used, when you really
need file sharing (such as database files or backups or even archive logs), but
the less you use it, the better. Oracle home files feels well without
sharing.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>// I don't see problems with OCFSv2 on SLES9 SP3-updated, but
I avoid to use it for mission critical file systems or heavy-duty file systems,
</FONT></DIV>
<DIV><FONT size=2>// and I still </FONT><FONT size=2>have failure scenario, when
RAC cluster could work but OCFS cause full-cluster failure </FONT></DIV>
<DIV><FONT size=2>// If you have network problem, SAN </FONT></DIV>
<DIV><FONT size=2>// system restart, disk io error, etc etc - you can end up
with system panic or reboot, caused by OCFS - </FONT></DIV>
<DIV><FONT size=2>// so the less OCFS you have, the better is your system
stability.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
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style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=bill.wells@oracle.com href="mailto:bill.wells@oracle.com">Bill
Wells</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=Sunil.Mushran@oracle.com
href="mailto:Sunil.Mushran@oracle.com">Sunil Mushran</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Cc:</B> <A title=ocfs2-users@oss.oracle.com
href="mailto:ocfs2-users@oss.oracle.com">ocfs2-users@oss.oracle.com</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Friday, September 29, 2006 10:45
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [Ocfs2-users] Use of OCFS2
file systems.</DIV>
<DIV><BR></DIV>thanks, Sunil.<BR><BR>BW<BR>
<DIV class=moz-signature>
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width=160 align=bottom border=0 moz-do-not-send="true"><BR><FONT
face="Book Antiqua" color=#000099><B>Bill Wells</B></FONT>, <FONT
color=#000099 size=2>OCP 7,8i,9i,10g</FONT><BR><FONT
color=#0000ff><I>Principal Service Delivery Engineer<BR>Advanced Customer
Services - GEH</I><BR></FONT>
<TABLE cellSpacing=0 cellPadding=0 width="20%" border=0>
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<TR>
<TD width="39%"><FONT color=#0000ff size=1>Cell#</FONT></TD>
<TD width="61%"><FONT face=Gungsuh color=#0000ff size=1>(919)
624-6300</FONT></TD></TR>
<TR>
<TD width="39%"><FONT color=#0000ff size=1>Office#</FONT></TD>
<TD width="61%"><FONT face=Gungsuh color=#0000ff size=1>(919)
846-8426</FONT></TD></TR></TBODY></TABLE><FONT color=#0000ff>email:</FONT>
<FONT color=#ff0000><A class=moz-txt-link-abbreviated
href="mailto:bill.wells@oracle.com">bill.wells@oracle.com</A></FONT>
<P><FONT color=#0066ff size=2>The statements and opinions expressed here are
my own and do not necessarily represent those of Oracle Corporation.</FONT>
</P></DIV><BR><BR>Sunil Mushran wrote:
<BLOCKQUOTE cite=mid451D51A2.4070603@oracle.com type="cite">Yes.
<BR><BR>Bill Wells wrote: <BR>
<BLOCKQUOTE type="cite">All, <BR> Can someone comment on whether it
is recommended to use the OCFS2 file system for the admin directories of a
RAC database. Specifically, for bdump, udump, cdump, etc. <BR>This
is being considered on RHEL4-U4 with 10gR2 on a 3 node cluster.
<BR><BR>Thanks much, <BR>Bill Wells
<BR>-- <BR>------------------------------------------------------------------------
<BR>Oracle logo <BR>*Bill Wells*, OCP 7,8i,9i,10g <BR>/Principal Service
Delivery Engineer <BR>Advanced Customer Services - GEH/
<BR>Cell# (919) 624-6300
<BR>Office# (919) 846-8426 <BR><BR>email: <A
class=moz-txt-link-abbreviated
href="mailto:bill.wells@oracle.com">bill.wells@oracle.com</A> <BR><BR>The
statements and opinions expressed here are my own and do not necessarily
represent those of Oracle Corporation.
<BR><BR>------------------------------------------------------------------------
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