IBM TotalStorage SAN256N Director 2045-N16, Руководство по установке и обслуживанию

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Chapter 5. Hardware maintenance procedures
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FRU categories
The SAN256N director FRUs are divided into two categories: (1) hot-swappable FRUS
and (2) not hot-swappable FRUs.
FRUs that are hot-swappable
FRU removal and replacement procedures which do not require that the AC power be
turned off:
• “TCM board replacement procedures” on page 80
• “TFIO blade replacement procedures” on page 82
• “TSW module replacement procedures” on page 85
• “Upper fan assembly replacement procedure” on page 87
• “Side fan assembly replacement procedure” on page 88
• “Power supply assembly replacement procedure” on page 91
FRUs that are not hot-swappable
FRU removal and replacement procedures which require that AC power be turned off:
• “TMF/TFD replacement procedure” on page 90
• “NEMA L6-20P AC power plug replacement procedure (SANC40N cabinet-North
American)” on page 93
• “International (7K25) AC power plug replacement procedure (SANC40N cabinet-
International)” on page 95
FRU precautions
Whenever removing and replacing assemblies or subassemblies in the SANC40N
cabinet, always keep in mind and practice the following precautions:
• When touching fiber, TFIO blades, TCM boards, TSW boards, TMF/TFD modules, or
power supply assemblies, always wear ESD wrist straps.
• When installing any TSW board, if online, resetting or replacing any TSW board can
cause the passing data to be interrupted.
• When removing or installing fan assemblies, do not turn AC power off to remove and
replace a faulty fan assembly.
• When installing a TFIO board or removing a single fiber connection from a specific
port, always verify that the TFIO retainer clamps are secured in position.
Attention: Refer to safety notices before an installation.
Attention: Refer to safety notices before starting an installation.
DANGER: When removing or installing a power supply assembly, high energy and
shock hazards exist when AC power cables are connected.