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<TITLE>RE: [Linux-cluster] gnbd configuration (newbie)</TITLE>
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<P><FONT SIZE=2>Thank you so much for your reply. Do you happen to have a link on how to configure manual fencing?</FONT>
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<P><FONT SIZE=2>Thanx!! </FONT>
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<P><FONT SIZE=2>-----Original Message-----</FONT>
<BR><FONT SIZE=2>From: Benjamin Marzinski [<A HREF="mailto:bmarzins@redhat.com">mailto:bmarzins@redhat.com</A>] </FONT>
<BR><FONT SIZE=2>Sent: Wednesday, January 04, 2006 2:53 PM</FONT>
<BR><FONT SIZE=2>To: linux clustering</FONT>
<BR><FONT SIZE=2>Subject: Re: [Linux-cluster] gnbd configuration (newbie)</FONT>
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<P><FONT SIZE=2>On Tue, Dec 20, 2005 at 09:57:42AM -0600, Frazier, Darrell USA CRC (Contractor) wrote:</FONT>
<BR><FONT SIZE=2>> I am trying to set up a 2 node test cluster using the Cluster Suite and</FONT>
<BR><FONT SIZE=2>> GFS. Shared storage consists of three GFS formatted partitions on an iscsi</FONT>
<BR><FONT SIZE=2>> jbod. What I need to know is this: The documentation is a little vague in</FONT>
<BR><FONT SIZE=2>> the configuration of gnbd as a fencing device. How do I use the gnbd</FONT>
<BR><FONT SIZE=2>> device to fence the 2 nodes. Do I have to setup the existing GFS formatted</FONT>
<BR><FONT SIZE=2>> partitions to be exported as a GNBD device? Thanx in advance. </FONT>
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<P><FONT SIZE=2>GNBD is like iscsi. A regular node with local storage can use gnbd_serv to</FONT>
<BR><FONT SIZE=2>act like an iscsi target, exporting the local storage to the network. The</FONT>
<BR><FONT SIZE=2>GFS nodes access the storage via the GNBD driver, much like they would using</FONT>
<BR><FONT SIZE=2>the iSCSI driver. If you are using GNBD to create shared storage, you use</FONT>
<BR><FONT SIZE=2>fence_gnbd to disable access to that shared storage. Since you are using iSCSI</FONT>
<BR><FONT SIZE=2>for your shared storeage, you cannot use fence_gnbd to disable access to that</FONT>
<BR><FONT SIZE=2>storage. Sorry. You need to use another fencing method.</FONT>
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<P><FONT SIZE=2>-Ben</FONT>
<BR><FONT SIZE=2>> </FONT>
<BR><FONT SIZE=2>> </FONT>
<BR><FONT SIZE=2>> Darrell J. Frazier</FONT>
<BR><FONT SIZE=2>> </FONT>
<BR><FONT SIZE=2>> Unix System Administrator</FONT>
<BR><FONT SIZE=2>> </FONT>
<BR><FONT SIZE=2>> US Army Combat Readiness Center</FONT>
<BR><FONT SIZE=2>> </FONT>
<BR><FONT SIZE=2>> Fort Rucker, Alabama 36362</FONT>
<BR><FONT SIZE=2>> </FONT>
<BR><FONT SIZE=2>> Com: (334)255-2676</FONT>
<BR><FONT SIZE=2>> </FONT>
<BR><FONT SIZE=2>> DSN: 558-3879</FONT>
<BR><FONT SIZE=2>> </FONT>
<BR><FONT SIZE=2>> Email: darrell.frazier@crc.army.mil</FONT>
<BR><FONT SIZE=2>> </FONT>
<BR><FONT SIZE=2>> </FONT>
<BR><FONT SIZE=2>> </FONT>
<BR><FONT SIZE=2>> </FONT>
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