Re: [Xen-users] How (not) to destroy a PostgreSQL db in domU on powerfail

[Michael Monnerie <michael.monnerie@xxxxxxxxxxxxxxxxxxx>]

On Mittwoch 04 März 2009 Fajar A. Nugraha wrote:
> Is your domU filesystem (/path/root20090113.xvd ?) located on top of
> LVM? If yes, then AFAIK LVM does not honor write-barriers.

Indeed. LVM is bad? I've read LVM is suggested in order to have an 
easier backup with snapshots. But if the result is that your XEN domU 
gets destroyed on a power outage - damn LVM.

Can someone confirm that LVM does not honor write-barriers?

mfg zmi
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