(19)

(11)

EP 2 016 512 A2

(12)

(88) Date of publication A3: 14.02.2008 (43) Date of publication: 21.01.2009 Bulletin 2009/04 (21) Application number: 07754104.3 (22) Date of filing: 27.03.2007

(51) International Patent Classification (IPC):  G06F 17/30(2006.01) (86) International application number: PCT/US2007/007533 (87) International publication number: WO 2007/126791 (08.11.2007 Gazette 2007/45)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 28.03.2006 US 392969 28.03.2006 US 392981 (71) Applicant: EMC Corporation Hopkinton, MA 01748 (US)	(72) Inventors: KEITHLEY, Kaleb Belmont, MA 02478-1003 (US) CAKELJIC, Zoran Watertown, MA 02472 (US) KILIAN, Michael Harvard, MA 01451 (US) TODD, Stephen, J. Shrewsbury, MA 01545 (US) (74) Representative: Driver, Virginia Rozanne  Page White & Farrer Bedford House John Street London WC1N 2BF John Street London WC1N 2BF (GB)