Time in Workdays Expected Optimistic Most Likely Pessimistic Immediate LDOONO'IU'I-P-UJNH NNNNNNNNNI'l'lIHI'HHHHH mummwaHommummthi-ao Task Name Dur....

Time in WorkdaysExpected Optimistic Most Likely Pessimistic Immediate LDOONO'IU'I-P-UJNH NNNNNNNNNI—‘l—‘l—IHI—‘HHHHHmummwaHommummthi-ao Task Name Dur. Dur. Dur. Dur. Predecessor Critical PathAET DATA CENTER MIGRATION Team meeting 1 0.5 1 1.5 JHire contractors 7 6 7 8 2Network design 14 12 14 16 2Ventilation system — — — — Order ventilation system 22 18 21 30 2 Install ventilation system 7 5 7 9 6New racks — — — — Order new racks 15 13 14 21 2 7 Install racks 21 17 21 25 9 ifPower supplies and cables — — — — Order power supplies 8: cables 7 6 7 8 2 Install power supplies 6 5 5 11 12, 16 Install cables 8 6 8 10 12, 16 ifRenovation of data center 21 19 20 27 3, 4City inspection 2 1 2 3 3, 7, 10 \fSwitchover Meetings — _ _ _ Facilities 8 7 8 9 14 Operations/systems 7 5 7 9 14 Operations/telecommunications 7 6 7 8 14 Systems & applications 8 7 7 13 14 Customer service 7 5 6 13 14 ifPower check 1 0.5 1 1.5 13, 14, 15 JInstall test servers 7 5 7 9 18, 19, 20, 21, 22, 23 JManagement safety check 2 1 2 3 7, 23, 24 JPrimary systems check 2 1.5 2 2.5 25 ‘4'Set date for move 1 1 1 1 26 ifComplete move 2 1 2 3 27 y