Hi list, We have a system (6.4 and Mesh), and only use Aim* as our historian. We would like to upgrade/replace Aim*, and would like to know our options. In addition to the normal collection of process data, we want to collect messages (operator action journal, system alarms and process alarms). We would like to keep trending capabilities on the DCS. We would like to do this with a single historian. We would like the ability to purge/restore the messages independently from the process data. Thanks for sharing your thoughts/experiences! André _______________________________________________________________________ This mailing list is neither sponsored nor endorsed by Invensys Process Systems (formerly The Foxboro Company). Use the info you obtain here at your own risks. Read http://www.thecassandraproject.org/disclaimer.html foxboro mailing list: //www.freelists.org/list/foxboro to subscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=join to unsubscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave