Safety Guidelines; Safe Handling; Operation - Lenovo ThinkSystem DS Series Hardware Installation And Maintenance Manual

1

Safety guidelines

Safe handling

CAUTION: Use this equipment in a manner specified by the manufacturer: failure to do this may cancel the
protection provided by the equipment.
• Permanently unplug the enclosure before you move it or if you think that it has become damaged in any way.
• A safe lifting height is 20U.
• Always remove power supply modules to minimize weight before you move the enclosure.
• Do not lift the enclosures by the handles on power supply modules—they are not designed to take the weight.
CAUTION: Do not try to lift the enclosure by yourself:
• Fully configured 2U12 enclosures can weigh up to 32 kg (71 lb)
• Fully configured 2U24 enclosures can weigh up to 30 kg (66 lb)
• Fully configured 5U84 enclosures can weigh up to 135 kg (298 lb). An unpopulated enclosure weighs 46 kg
(101 lb). Use appropriate lifting methods. Before lifting the enclosure:
Unplug all cables and label them for reconnection.

Remove DDICs from drawers and verify the drawers are closed firmly and locked. See also

(page 33).
Use a minimum of three people to lift the enclosure using the lifting straps provided.

Avoid lifting the enclosure using the handles on any of the CRUs because they are not designed to take the

weight.
Do not lift the enclosure higher than 20U. Use mechanical assistance to lift above this height.

•
Observe the lifting hazard label affixed to the storage enclosure.
Figure 1 Lifting hazard label

Operation

IMPORTANT: Operation of the enclosure with any CRU modules missing will disrupt the airflow, and the
enclosure will not receive sufficient cooling. It is essential that all slots hold modules before the enclosure system is
used. Empty drive slots (bays) in 2U enclosures must hold dummy drive carrier modules. See also
(page 55).
16 Safety guidelines
.
Figure 25
Figure 47