Hi All, I would like to know your experience with exchange clustering, either in active/active mode or active/passing mode. What are the consideration's and/or bestpractices?? Does anyone know some good sites for clustering besides the msexchange.org and microsoft sites? I would like to head from you. Greets Martijn Spelt Computer & Network Services Gemeentelijk Havenbedrijf Rotterdam Tel 010- 252 19 76 Fax 010- 252 19 57 E-mail m.spelt@xxxxxxxxxxxxxxxxx Internet www.portofrotterdam.com World Port Center Wilhelminakade 909 3072 AP Rotterdam Nederland