User`s guide

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C: Installing Rack Systems
8. Secure the racks with seismic tie-downs if you are installing the system in an earthquake
zone.
Note: Tall racks have four threaded holes that are located at the bottom of the rack (see Figure C-8
on page 212). Use these holes to secure the seismic tie-downs. SGI does not supply the seismic
tie-downs.