[Zope] a corrupted ZODB?

[tav]

was working happily on the server, when all of a sudden it keeled over and
didnt restart automatically. so, i went to restart it manually, and got the
following error message:

----------------
charizard:/usr/local/zope/z1# Traceback (innermost last):
  File "/usr/local/zope/z1/z2.py", line 554, in ?
    exec "import "+MODULE in {}
  File "<string>", line 1, in ?
  File "/usr/local/zope/z1/lib/python/Zope/__init__.py", line 110, in ?
    DB=ZODB.FileStorage.FileStorage(Globals.BobobaseName)
  File "/usr/local/zope/z1/lib/python/ZODB/FileStorage.py", line 303, in
__init__
    self._pos, self._oid, tid = read_index(
  File "/usr/local/zope/z1/lib/python/ZODB/FileStorage.py", line 1515, in
read_index
    if read(4) != packed_version: raise FileStorageFormatError, name
ZODB.FileStorage.FileStorageFormatError: /usr/local/zope/z1/var/Data.fs
----------------

i really really really hope that this isnt doesnt mean a corrupted ZODB.
please say that it aint so, cos if it is - bye bye three weeks worth of
work, including design and content ):

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hoping for a positive reply, tav