Hi all. We're experiencing nightly corruption of a Data.fs in an intranet application. We've removed all the packing/backup stuff, we've moved from zope 2.6.4 to zope 2.7.4, but we still have data corruption in the morning. Here is the error from the event log: 2005-02-22T09:21:51 ERROR(200) ZODB Couldn't load state for 0x3b3939 Traceback (most recent call last): File "/home/zope/zope-2.7.4/lib/python/ZODB/Connection.py", line 597, in setstate p, serial = self._storage.load(oid, self._version) File "/home/zope/zope-2.7.4/lib/python/ZODB/FileStorage.py", line 689, in load return self._load(oid, version, self._index, self._file) File "/home/zope/zope-2.7.4/lib/python/ZODB/FileStorage.py", line 663, in _load doid, serial, prev, tloc, vlen, plen = unpack(DATA_HDR, h) error: unpack str size does not match format ------ 2005-02-22T09:22:07 ERROR(200) ZODB Couldn't load state for 0x3214dc Traceback (most recent call last): File "/home/zope/zope-2.7.4/lib/python/ZODB/Connection.py", line 597, in setstate p, serial = self._storage.load(oid, self._version) File "/home/zope/zope-2.7.4/lib/python/ZODB/FileStorage.py", line 689, in load return self._load(oid, version, self._index, self._file) File "/home/zope/zope-2.7.4/lib/python/ZODB/FileStorage.py", line 663, in _load doid, serial, prev, tloc, vlen, plen = unpack(DATA_HDR, h) error: unpack str size does not match format ------ 2005-02-22T09:23:01 ERROR(200) ZODB Couldn't load state for 0x0eed Traceback (most recent call last): File "/home/zope/zope-2.7.4/lib/python/ZODB/Connection.py", line 597, in setstate p, serial = self._storage.load(oid, self._version) File "/home/zope/zope-2.7.4/lib/python/ZODB/FileStorage.py", line 689, in load return self._load(oid, version, self._index, self._file) File "/home/zope/zope-2.7.4/lib/python/ZODB/FileStorage.py", line 665, in _load raise CorruptedDataError, h CorruptedDataError: ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ I'm quite confident the problem is outside of Zope, but I would like to have some pointer on where to investigate in order to undestand the problem. Regards Marco