[DRBD-user] [Iscsitarget-devel] Building a multipath setup with DRBD in Primary/Primary

Dwight Hubbard dwight at dwighthubbard.com
Tue Jun 9 00:01:06 CEST 2009

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.

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

On Mon, Jun 8, 2009 at 1:38 PM, Christopher Chen <muffaleta at gmail.com>wrote:

> I have yet to test this setup, but my thinking with regard to
> active/active mode would be:
> While it feels better to run a machine in active/passive mode, I want
> to set up mulitpath to handle the IO recovery. Because multipath has
> to know about the paths beforehand to do a relatively quick failover,
> the secondary host needs to export the LUNs before the failure
> happens. Because DRBD in secondary mode prevents any read access, a
> secondary machine can't export its LUNs, and multipath won't know
> about the path.
> I suppose running in active/passive mode with scripts to automate the
> iSCSI rescanning process could work, but it wouldn't be automated.
> Any thoughts?
> --
> Chris Chen <muffaleta at gmail.com>
> "The fact that yours is better than anyone else's
> is not a guarantee that it's any good."
> -- Seen on a wall
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Dwight Hubbard
Owner Effective Automation Solutions
Website: http://effectiveautomationsolutions.com
Blog: http://computing.dwighthubbard.info
Email: dwight at dwighthubbard.com
Phone: (503) 616-4493
Redhat Certified Engineer - RHCE #804007137224095
VMware Certified Professional - VCP #18529
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