This can be solved disabling disk write cache as I read in:

http://lwn.net/Articles/283161/

By the way my Ubuntu server resides on a ESXi 4,0 server, when Ubuntu starts detect that it is on VMware disks, and set disk write policy to write trough. Could this solve the problem?

Regards

--- In firebird-support@yahoogroups.com, "Rick Debay" <rdebay@...> wrote:
>
> Write barriers are not supported in LVM until kernel 2.6.29. There is a
> claim of a bug in the implementation, I don't know if it got fixed in
> the next release.
> So don't depend on your data forced to disk if you're using LVM and
> kernel 2.6.29 or earlier.
>
> -----Original Message-----
> From: firebird-support@yahoogroups.com
> [mailto:firebird-support@yahoogroups.com] On Behalf Of Christian
> Sent: Friday, March 19, 2010 9:00 AM
> To: firebird-support@yahoogroups.com
> Subject: [firebird-support] Live backup firebird database using LVM
>
> I need to hot backup large Firebird databases to other physical
> locations.
> This databases are in LVM partitions.
> It's safe to snapshot the filesystem and copy the file database (from
> the snapshot of course) to the other location using rsync?
> There are any risk to get a corrupted database?
>
> Regards
> Christian
>
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>