<html><body bgcolor="#FFFFFF" lang="EN-US" link="blue" vlink="purple"><div>OCFS2 works very well with oracle... GFS is a general purpose clustered filesystem...<br><br>Sent from my mobile...</div><div><br>On Dec 7, 2009, at 12:30, "Jeff Lightner" <<a href="mailto:jlightner@water.com">jlightner@water.com</a>> wrote:<br><br></div><div></div><blockquote type="cite"><div><o:smarttagtype namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="City">
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<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy">You could get OCFS2 (open source) from
Oracle’s web site. It’s designed to allow you to use the same storage in a
clustered configuration. We use its predecessor OCFS for one of our old Oracle
RAC environments but RAC isn’t required as OCFS2 handles its own clustering
setup. Its also reportedly a much improved product over OCFS(1). It uses
Linux’ O_DIRECT stuff for the file sharing so the tools you use have to be
O_DIRECT aware and I think most of the newer ones (tar, ls, cp, mv etc…) are.
When we did it back on RHEL3 (2.4 kernel) we had to load the utilities Oracle
had made that were (also open source).<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy">Also GFS I believe is designed for similar
usage and is native to most distros but I haven’t used it.<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
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<p class="MsoNormal"><b><font size="2" face="Tahoma"><span style="font-size:10.0pt;
font-family:Tahoma;font-weight:bold">From:</span></font></b><font size="2" face="Tahoma"><span style="font-size:10.0pt;font-family:Tahoma">
<a href="mailto:ale-bounces@ale.org">ale-bounces@ale.org</a> [mailto:ale-bounces@ale.org] <b><span style="font-weight:
bold">On Behalf Of </span></b>Jim Kinney<br>
<b><span style="font-weight:bold">Sent:</span></b> Monday, December 07, 2009
11:33 AM<br>
<b><span style="font-weight:bold">To:</span></b> <st1:personname w:st="on">Atlanta
Linux Enthusiasts - Yes! We run Linux!</st1:personname><br>
<b><span style="font-weight:bold">Subject:</span></b> [ale] fiber channel
mounts</span></font><o:p></o:p></p>
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<p class="MsoNormal"><font size="3" face="Times New Roman"><span style="font-size:
12.0pt"><o:p> </o:p></span></font></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><font size="3" face="Times New Roman"><span style="font-size:12.0pt">I have a netapp joined by
fiber channel to 2 linux head end servers. I'm using multipath fiber channel in
an active/active mode for maximum data throughput.<br>
<br>
<st1:address w:st="on"><st1:street w:st="on">box</st1:street> 1</st1:address>
can write a file and read that file is there. <st1:address w:st="on"><st1:street w:st="on">Box</st1:street> 2</st1:address> can't see the file exists. <br>
<st1:address w:st="on"><st1:street w:st="on">box</st1:street> 2</st1:address>
can write file and see it on the netapp but box one does not see it.<br>
<br>
run sync on both boxes and umount/mount the netapp storage space again.<br>
both <st1:address w:st="on"><st1:street w:st="on">box</st1:street> 1</st1:address>
& 2 see the file written from <st1:address w:st="on"><st1:street w:st="on">box</st1:street>
1</st1:address> but the file written from <st1:address w:st="on"><st1:street w:st="on">box</st1:street> 2</st1:address> is gone.<br>
<br>
this is bad. Clearly I have a misconfiguration somewhere! <st1:address w:st="on"><st1:street w:st="on">Box</st1:street> 2</st1:address> shows errors related to ext3
journal corruption so ext3 is NOT a good choice.<br>
<br>
<st1:address w:st="on"><st1:street w:st="on">Box</st1:street> 2</st1:address>
is supposed to be a failover database and the netapp is the storage for the
database files. I would prefer for the failover to be closer to a hot standby
than a cold standby but it looks like I can't keep the netapp partition mounted
on <st1:address w:st="on"><st1:street w:st="on">box</st1:street> 2</st1:address>
if <st1:address w:st="on"><st1:street w:st="on">box</st1:street> 1</st1:address>
is still live. I'm not running the database at all on <st1:address w:st="on"><st1:street w:st="on">box</st1:street> 2</st1:address>.<br clear="all">
<br>
-- <br>
-- <br>
James P. Kinney III<br>
Actively in pursuit of Life, <st1:city w:st="on"><st1:place w:st="on">Liberty</st1:place></st1:city>
and Happiness <o:p></o:p></span></font></p>
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<div> </div>
<div>
<font face="Arial" size="2">Proud partner. Susan G. Komen for the Cure.</font>
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