HP Surestore HVD10 - Disk System Service Manual page 112

Caution Spinning disks generate heat and gyratory force.
Wait for a spinning disk to slow down and cool off before
completely removing the module from the disk system.
WARNING High current available: Avoid touching the backplane or adjacent
disk electronics when removing and inserting disk modules.
Caution If the disk module will be reused, place it on a static mat or other ESD-
protected surface.
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