0001181431-08-056968 3 1 20081001 20081010 20081010 Geoghegan Bernard 0001447651 3 34 001-32336 081119247 353-1-245-0660 UNIT 9, BLANCHARDSTOWN CORPORATE PARK BLANCHARDSTOWN DUBLIN 15 L2 00000 Digital Realty Trust, Inc. 0001297996 6798 000000000 MD 1231 560 MISSION STREET SUITE 2900 SAN FRANCISCO CA 94105 (415)738-6500 560 MISSION STREET SUITE 2900 SAN FRANCISCO CA 94105 3 1 rrd220878.xml FORM 3 FOR BERNARD GEOGHEGAN