Oracle Fujitsu SPARC M12-1 Service Manual page 155

Hold both ends of the HDDBP and lift to release it from the hooks (three
5.
places).
Figure 10-5 Hooks on the Chassis
6. Remove the HDDBP.
Note - Place the removed HDDBP on a grounded ESD mat to ground any static electricity.
Chapter 10 Maintaining the HDD Backplane 141