• Power supply cables2. If your shipment contains parts that are not required to complete the installation procedure, storethose parts in case they are needed in the future.3. If you have incorrect, missing, or damaged parts, consult any of the following resources:• Your IBM reseller.• IBM Rochester manufacturing automated information at 1-800-300-8751 (United States only).• See the Directory of worldwide contacts website (http://www.ibm.com/planetwide). Select yourlocation to view the service and support contact information.Determining and marking the location in the rackTo determine where to install the ESLL or ESLS storage enclosure into a rack, complete the steps in thisprocedure.Before you beginRead the Rack safety notices (http://www.ibm.com/support/knowledgecenter/POWER9/p9hbf/p9hbf_racksafety.htm).About this taskTo determine where to install the disk drive enclosure into a rack, complete the following steps:Procedure1. Determine where in the rack to place the enclosure in relation to other system hardware. As you planfor installing the enclosure in a rack, keep in mind the following information:• Organize larger and heavier units into the lower part of the rack.• Plan to install units into the lower part of the rack first.• Record the Electronic Industries Alliance (EIA) locations in your plan.Note: The enclosure is two EIA units high. An EIA unit is 44.50 mm (1.75 in). The rack contains threemounting holes for each EIA unit of height. Therefore, this enclosure is 89 mm (3.5 in) high and coverssix mounting holes in the rack.2. Ensure that you have the electrostatic discharge (ESD) wrist strap on and that the ESD clip is pluggedinto a ground jack or connected to an unpainted metal surface. If not, do so now.3. If necessary, open or remove the front and rear rack doors.4. If necessary, remove the filler panels to allow access to the inside of the rack enclosure where youplan to place the enclosure.12 Power Systems: Installing the 5887 disk drive enclosure