Ok, I have in mi ZEO_start script this ###zeo_start #!/bin/sh reldir=`dirname $0` exec python $reldir/lib/python/ZEO/start.py -S main=StorageConfig:main_storage -p 8800 -h 10.10.10.2\ ZEO_SERVER_PID=$reldir/var/ZEO_SERVER.pid \ STUPID_LOG_FILE=$reldir/var/ZEO_EVENTS.log \ "$@" my StorageConfig.py : import ZODB.FileStorage main_storage=ZODB.FileStorage.FileStorage('/usr/local/Zope/var/Data.fs') When I start ZEO whit the -S option it sents errors when one of my ZEO clients try to connect. but when I kept out the -S main=StorageConfig:main_storage all my clients starts ok. What is the difference running the zope with or without the -S parameter? The other issue that i have is this i have three pentium working with ZEO thwo clients and one server. The two clients are balanced with a load balancer. When I start my two Clients, it seems like everithing works fine, but when I connect my squids (on both clients machines to accelerate the site) to those ZEOclients, the site hangs a lot, and some times never respond (the browser keeps thinking). And when i disconnected ZEO( my both clients and my Server) and only start Zope as usual (only one instance on the main server) and connect both Squids to that instance the site works fine. Do you have any Idea why this happens? A month a go everithing was workinf fine, last sunday the disck of my Main server (wher the Zserver is) filled up. So what i did ,was remove logs and other unusual files to free some sapce, but when I started the ZEO Server and the clients, the hangs started. So i thought may be some files where corrupted becuase of the disk full. So I made a new installation of Zope with new ZEO (both main server and client machines) thinking that this could solve the problem, but it didnt. Just for the record I copied all the Data.Fs and Data.fs.* of my old installation to the new installation. Is there any possibility that the Data.fs be corrupted because of the disck full? And if so why it works fine whit one Zope and with Zeo dont (remember I use squid to accelerate ZOPE)? Thx Tavo