Technical data

Determining wh
ether a component is hot-pluggable
Before removin
g any serviceable part, determine whether the part is hot-pluggable or non-hot-pluggable.
• If the component is hot-pluggable, a power shutdown of the device is not required for replacement
of the part.
• If the component is not hot-pluggable, the device must be powered down.
CAUTION:
Be sure the rep
lacement is available before removing a component or blanking panel from the chassis.
Open slots dr
amatically impact airflow and cooling within the enclosure.
Table 3 Component hot-pluggability
Component
Hot-pluggable Non hot-pluggable
Redundant power supply/fan assembly
X
MSA array controller
(dual-controller configurations)
X*
Fibre Channel I/O module
(dual-controller configurations)
X*
SCSI I/O module
X
MSA chassis
X
Power switch module
X
MSA array controller
(single-controller configurations)
X
Fibre Channel I/O module
(single-controller configurations)
X
* Before removing one of the two controllers or Fibre Channel I/O modules in an operational dual-controller
MSA, the controller being removed must first be disabled. For more information, see Replacing the controller,
controller cache, or controller battery .
maintenance and service guide
67