I just want to confirm this. From what i've learned so far, STONITH is
relevant only to avoid data corruption when using shared storage. So, is
STONITH relevant when i'm using a non-shared setup with Heartbeat and XEN VM
on top of DRBD? Xen is using file images created on top of a ext3 FS on top
of DRBD, and there should not be any concurrent access.
Here you say yourself that you need STONITH :)
You might as well be fine with DRBD resource fencing.
As long as communication paths are redundant, you *should* not end up
with a domU running on both dom0s. You still might, if DRBD resource
fencing does not work properly.
To be really sure, I'd rather have a stonith device.
Regards
Dominik
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