Thank you for the replies :
>What is the size of the database pages? >Have you checked the DB level Page Cache setting (the DB can have a different >value from the config)? >How much RAM is available for the VM? Sean, theres 13gb of RAM, and no db with specific settings Page size is 16k >*EACH DATABASE* will be consuming up to (50000 * page size) on cache. >Why do you set DefaultDbCachePages so high???? The Firebird server >needs RAM for more things than just the cache. Helen, pages are high only because I copied the suggested values from the config at https://ib-aid.com/br/optimized-firebird-configuration/ Since it is the first time we're using superserver we went for these recommended settings. Isn't the page cache shared in this mode on firebird 3 (50000 pages for all dbs) ? Also, I've set the temp directories now as you suggested. And there is plenty of HD space available. >Which version (exact buildnumber)? Mark, server version is WI-V6.3.2.32703
