Mostafa, If you want to see history one year back, you have to restore the files = containing those data to some active path (the one for the instance or = the playback directory) and then call manual archiver and do a refresh = by selecting: View -> Filter File List -> Archived, Deleted -> OK=20 After some time (it depends on the number of files you have) on the = column Active path you will see where foxhistory found your files = (/opt/aim/inst/ (instance name) or /opt/aim/pbk/ on AIM*historian). = After that your hisroy is ready to be used. Hope this help Regards Claudio P=E9rez Profertil S.A. -----Mensaje original----- De: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx] = En nombre de Mostafa mohamed Enviado el: Martes, 15 de Enero de 2008 03:00 Para: foxboro@xxxxxxxxxxxxx Asunto: [foxboro] archived data foxhistory Dear List Hi, I have one question. we are taking archive backup for fox history. = Then we delete the archived data. suppose we need to see the trend one = year back? should we return the file of this period and do xrebuild? I appreciate your help. RegardsMostafa _________________________________________________________________ Get the power of Windows + Web with the new Windows Live. http://www.windowslive.com?ocid=3DTXT_TAGHM_Wave2_powerofwindows_012008 =20 =20 _______________________________________________________________________ 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 =20 foxboro mailing list: //www.freelists.org/list/foxboro to subscribe: = mailto:foxboro-request@xxxxxxxxxxxxx?subject=3Djoin to unsubscribe: = mailto:foxboro-request@xxxxxxxxxxxxx?subject=3Dleave =20 _______________________________________________________________________ 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