Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On 2009-07-16T10:58:56, Adam Wilbraham <adam.wilbraham at technophobia.com> wrote:
> Currently if I do a "xm migrate test-domu host2 --live" then the running
> domU gets migrated but the storage backend doesn't which is to be expected
> in the setups current state.
Yeah, you really shouldn't migrate resources outside the cluster
manager's control.
> If I manually force a failover using heartbeat
> then the drbd device moves over, but its too late by this point as the
> running domU has already lost the storage. What I'm trying to establish is
> whether its theoretically possible to do what I'm trying to do - trigger a
> migration which doesn't complete until the underlying device has been
> migrated over by heartbeat. I believe that live migration relies on the
> allow-two-primaries functionality of DRBD which is physically impossible
> using a floating resource like in my setup. Has anyone had any experience
> with configuring a system like this?
Did you try setting the "allow-migrate" meta-attribute?
But yes, that requires that all resources are either clones or able to
migrate. I'm not sure what you want to do is currently possible out of
the box.
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You know, this kind of signature in a public discussion is kind of
awkward.
Regards,
Lars
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Architect Storage/HA, OPS Engineering, Novell, Inc.
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