Thanks for the responses. We currently have 5GB on disk. I suspect this will increase (with corresponding increase in mem usage) as we want to increase our indexing to address some performance issues - mainly by increasing nsslapd-allidsthreshold and tweaking the cache sizes. Cheers Nick On 15/07/2009, at 2:00 AM, lbigum at iseek.com.au wrote: > I wouldn't think you'd need much more RAM over the size of your LDAP > database files, so unless you've got 8GB of LDAP information, 8GB of > RAM sounds a lot to me. Our LDAP database is only about 40MB, which > is close to the RAM usage of the VE.