Hello, We've a production environment running Zope 2.1.6 on WinNT4 sp5 (not front ended with IIS). Data.fs is 60MB and growing at the rate of 10MB per day - we are building a site and quite a lot of people are adding content simultaneously. We pack the database daily. Yestderday afternoon packing failed saying "Transaction #xxxx has invalid headers". Then when I went through UNDO tab list, from a particular earlier transaction onwards, I couldn't see the UNDO list also - says "Oversized int". Well, since I was not sure of how well ZODB will hold up I had programmed it in such a way that we keep a copy of most important textual content in an Oracle database as well. So, I used the Data.fs.old, recreated all the DTML documents and folders using a DTML script after reading data from Oracle. However, images and other binary files are stored only in ZODB, so I had to upload these again. Again today afternoon the same problem appeared. I've nailed it down to one particular folder which zope interface shows, but can't access. I can repeat my whole excercise tomorrow morning too, but I really would like a better solution because it becomes kind of unstable. Q: I saw Jim's mail on fsrecover.py. Does this work on Zope 2.1.6 databases too? I'll try tomorrow, with a backup copy. But personal experience would be nice :-) Q: The number of transactions (write/update) are quite high on my site - atleast now, during the building phase. What would be a recommended pack frequency? Note: 95% of our updates are through anonymous user. This is because I'm (need to, asked to) using zope as purely an app server, not as a web platform. So, all my data goes into an Oracle database, then gets created on ZODB as a DTML document etc. It is really a round about way of doing things - like trying to write some ASP/PHP code to make things look 10% like Zope's content management abilities. Q: Is there any particular reason why I really should upgrade to Zope 2.2? If someone in DC needs to take a look at the Data.fs file for research, I can arrange that. Many thanks in advance V.Satheesh Babu Web Technologies Group, (703)-841-5348 sbabu@tnc.org The Nature Conservancy http://www.tnc.org http://vsbabu.csoft.net "The man who smiles when things go wrong has thought of someone to blame it on." --- Jone's Law