Planning for installation

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Before beginning the enclosure installation, familiarize yourself with the system configuration requirements. The figures listed below show the locations for each plug-in module:

Disk Enclosure front panel: see Figure 1.
Disk Enclosure rear panel: see Figure 1.
Disk Enclosure top panel: see Figure 1, Figure 2, and Figure 3.

Important: Installation work should be performed by qualified service personnel.

Table 1. Storage system configuration
Module type	Location	Description
Power supply unit	Rear panel	Two PSUs provide full power redundancy, allowing the system to continue to operate while a faulty PSU is replaced.
System fan	Rear panel	Four system fans provide cooling, allowing the system to continue to operate while a faulty system fan is replaced.
I/O module	Rear panel	TheIOM must be installed in IOM slot No.0 and an IOM blank must be installed in IOM slot No.1.
Disk drive module	Top panel	See Populating disk drive slots.
Channel fan	Top panel	Two channel fan modules of the same model type are supported.
HS Expander	Top panel	Four removable hot swap expanders are supported: one per 12-drive bay.