Lenovo Secure Managed Client - Manual (Page 39)

CAUTION:
Observe all conventional ESD precautions when handling modules and
components. Avoid contact with backplane components and module connectors,
etc.
Note: The top cover of the enclosure covers a service area which should be
accessed only by qualified service personnel. When the cover is replaced it
must be secured by turning the lock mechanism to the locked position.
Continuous operation during replacement
Depending on how the enclosure system is set up, if a disk unit fails, it can
normally be replaced without interrupting the use of the system.
Chapter 5. Troubleshooting and problem solving 31