I would think, you could set up DRBD in primary/primary node with GFS or OCFS filesystem and export file luns from the cluster filesystem from both hosts.<br><br><div class="gmail_quote">On Mon, Jun 8, 2009 at 1:38 PM, Christopher Chen <span dir="ltr"><<a href="mailto:muffaleta@gmail.com">muffaleta@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">I have yet to test this setup, but my thinking with regard to<br>
active/active mode would be:<br>
<br>
While it feels better to run a machine in active/passive mode, I want<br>
to set up mulitpath to handle the IO recovery. Because multipath has<br>
to know about the paths beforehand to do a relatively quick failover,<br>
the secondary host needs to export the LUNs before the failure<br>
happens. Because DRBD in secondary mode prevents any read access, a<br>
secondary machine can't export its LUNs, and multipath won't know<br>
about the path.<br>
<br>
I suppose running in active/passive mode with scripts to automate the<br>
iSCSI rescanning process could work, but it wouldn't be automated.<br>
<br>
Any thoughts?<br>
<br>
--<br>
Chris Chen <<a href="mailto:muffaleta@gmail.com">muffaleta@gmail.com</a>><br>
"The fact that yours is better than anyone else's<br>
is not a guarantee that it's any good."<br>
-- Seen on a wall<br>
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</blockquote></div><br><br clear="all"><br>-- <br>Dwight Hubbard<br>Owner Effective Automation Solutions<br>Website: <a href="http://effectiveautomationsolutions.com">http://effectiveautomationsolutions.com</a><br>Blog: <a href="http://computing.dwighthubbard.info">http://computing.dwighthubbard.info</a><br>
Email: <a href="mailto:dwight@dwighthubbard.com">dwight@dwighthubbard.com</a><br>Phone: (503) 616-4493<br>Redhat Certified Engineer - RHCE #804007137224095<br>VMware Certified Professional - VCP #18529<br>