HP Surestore Disk Array 12h and FC60 - Manual (Page 388)

388 Disk Enclosure Modules
Figure 94 Disk Module Removal
Installing a Disk Module or Filler Module
C AUTION
Touching the disk circuit board can cause high energy
discharge and damage the disk.
Disks modules are fragile and should be handled carefully.
A ESD plug-in
B cam latch
C handle