Hitachi NAS Platform 4000 Series - Chapter 5: Replacing Server Components; Field-Replaceable Units (FRUs); Hot-Swappable Components

Chapter 5: Replacing server components
This section describes which components are eld replaceable units (FRUs) and how to
r
eplace those components. The section also describes which components are hot-
swappable.
Field-replaceable units
Some components ar
e eld-replaceable units (FRUs).
Important: The FRUs can only be r
eplaced b
y certied engineers. These
components are not customer replaceable units (CRUs).
FRUs include the following components:
■
Hitachi NAS Platform or Hitachi Unied Storage File Module servers
■
Bezels
■
Hard disk drives (HDDs)
■
Power supply unit (PSUs)
■
NVRAM battery backup packs
■
Fan assemblies
■
SFP+ port adapters (HNAS 4060, 4080, and 4100)
Note: Main Motherboar
ds (MMBs) and Main FPGA Boar
ds (MFBs) are pre-
installed boards that perform functions essential to the integrity of the
server. If there is an issue with the MMB, or the MFB (typically), you must
return the server for repair. MMBs are not FRUs, and, typically, MFBs are also
not FRUs. However, an MFB may be replaced under certain specic
circumstances. Contact Hitachi Vantara Support Connect to determine
whether your MFB can be replaced as a FRU.
Some components are also hot-swappable. See
Hot-swappable components (on
page 63) for details.
Hot-swappable components
Some components ar
e hot-swappable. Such components can be changed without
shutting do
wn the server.
Chapter 5: Replacing server components
Hitachi NAS Platform and Hitachi Unied Storage Series 4000 Hardware Reference 63